# 410+ Highway Engineering MCQs

1. The factors not affecting run off.

A. Intensity of soil.
B. Type of soil.
C. Topography of soil.

2. The number of steps followed for surface drainage system is..
A. One.
B. Two.
C. Three.
D. Four.

3. The rational formula is..
A. Q=CiA.
B. Q=ki.
C. Q=AV.
D. Q= CA.

4. The value of C is taken as ____ for bitumen pavements..
A. 1.0.
B. 2.0.
C. 0.9.
D. 0.95.

5. The minimum velocity required in drainage to maintain flow is..
A. Self cleaning velocity.
B. Sewage velocity.
D. Maximum velocity.

6. The area of the drainage is expressed in.
A. 10 sq.km.
B. 100 sq.km.
C. 1000 sq.km.
D. 10000 sq.km.

7. For a bitumen pavement calculate the discharge in m3/sec if intensity of the rainfall is 40 mm/sec and area of drainage is 100 m2.
A. 360.0.
B. 36.0.
C. 3.6.
D. 0.36.

8. The side drains and partially filled culverts are designed on the basis of.
A. Open channel flow.
B. Hydrological analysis.
C. Pavement geometry.
D. Run off.

9. The continuity equation is given by.
A. Q=KiA.
B. Q=AV.
C. Q=A/V.
D. Q=AV^2.

10. The desirable velocity for sand and silt are.
A. 0.2m/second.
B. 0.5 m/second.
C. 0.7 m/second.
D. 0.9 m/second.

11. The discharge in m^3/sec for a surface drainage of 100 m^2 and a velocity of 5 m/second is.
A. 5.0.
B. 50.0.
C. 500.0.
D. 0.5.

12. The roughness coefficient is assumed in.
A. Chezys formula.
B. Manning's formula.
C. Heigen poiuselles equation.
D. Continuity equation.

13. The hydraulic radius is given by.
A. A/P.
B. P/A.
C. PA.
D. A+P.

14. The maximum value of Manning's coefficient for soil with heavy vegetation is.
A. 0.1.
B. 0.2.
C. 0.3.
D. 0.4.

15. The total time for inlet flow and flow along the drain is given by.
A. T1+T2.
B. T1T2.
C. T1/T2.
D. T1-T2.

16. If the depth of a trapezoidal section is 0.50 m and free board is 0.15 m , then the total depth is.
A. 0.35 m.
B. 0.65 m.
C. 0.50 m.
D. 0.15 m.

17. The time of flow in minutes for a longitudinal drain of 400 m and with a velocity of 0.8 m/sec is.
A. 6.33.
B. 7.33.
C. 8.33.
D. 9.33.

18. In slab culverts RCC slab is placed over abudment of..
A. Masonry.
B. Pre stressed.
C. Steel.
D. Composite.

19. The span of RCC slab is limited to..
A. 1 m.
B. 1.5 m.
C. 2.0 m.
D. 3.0 m.

20. The minimum diameter used in pipe culverts is..
A. 25 cm.
B. 35 cm.
C. 45 cm.
D. 75 cm.

21. The GWT should be at a distance of ___ from ground level..
A. 0.5 m.
B. 0.6 m.
C. 1.2 m.
D. 5.0 m.

22. The total interruption to traffic in a year should not exceed..
A. 45 days.
B. 40 days.
C. 30 days.
D. 15 days.

23. The clay seal may be provided if seepage zone is at a depth of less than..
A. 1.2 m.
B. 1.0 m.
C. 0.9 m.
D. 0.6m to 0.9 m.
Answer = 0.6m to 0.9 m

24. The capillary control can be controlled by how many methods?.
A. One.
B. Two.
C. Three.
D. Four.

25. To fulfill the adequate permeability the D15 of filter/D15 of foundation ratio should be greater than..
A. 5.0.
B. 10.0.
C. 15.0.
D. 20.0.

26. The D85 point size is given by..
A. Dp.
B. 2Dp.
C. 3Dp.
D. 4Dp.

27. The loss of water from leaves present on embankment is called..
A. Evaporation.
B. Transpiration.
C. Sublimation.
D. Boiling.

28. The roads passing through hilly terrain and leading to the villages and towns near hills are called.
A. National highway.
B. State highway.

29. The problem not faced in hilly regions is.
A. Extreme climate.
B. Landslide.
C. Snow.
D. Summer cracks in pavements.
Answer = Summer cracks in pavements

30. The cross slope for a pavement to be plain should be less than.
A. 40.0.
B. 35.0.
C. 25.0.
D. 10.0.

31. For a terrain to be termed as steep, the cross slope should be greater than.
A. 25.0.
B. 35.0.
C. 45.0.
D. 60.0.

32. The hill road should be aligned.
A. Stable side.
B. Unstable side.
C. Based on economy.
D. Based on population.

33. A most common feature in hill road is.
A. U turn.
B. Hair pin bend.
C. Speed limit.
D. SSD.

34. The hill roads are classified into how many types?.
A. One.
B. Two.
C. Three.
D. Five.

35. The road development in borders is taken care by.
A. BRO.
B. IRC.
C. NHAI.
D. DRDO.

36. The class division for 3 tonne vehicle is named as ____ by Border Roads Organisation.
A. National highway.
B. Class 9.
C. Class 5.
D. Class 3.

37. In a hill road, the best alignment when the sum of ascent and descent between extreme points is..
A. Maximum.
B. Minimum.
C. Maximum+minimum.
D. Maximum-minimum.

38. The length may be provided ___ times from height..
A. 30.0.
B. 40.0.
C. 50.0.
D. 60.0.

39. The application that is not useful for hill survey is..
A. Aerial survey.
B. Photogrammetry.
C. GPS.

40. The total resistance length of a road is ..
A. Effective length.
B. Effective length after friction.
C. Effective length after skid.
D. Effective length after all resistance.
Answer = Effective length after all resistance

41. The total resisting length increases due to..
A. Increase in friction.
B. Decrease in friction.
C. Increase in pavement thickness.
D. Decrease in pavement thickness.

42. The ruling gradient in trace cut is..
A. 1 in 10.
B. 1 in 25.
C. 1 in 20.
D. 1 in 30.

43. The minimum width of the trace cut provided is..
A. 1.0 m.
B. 1.5 m.
C. 2.0 m.
D. 2.5 m.

44. Degree of stability of hill side slope don't depend on..
A. Type of rock.
B. Dip.
C. Ground water.
D. Type of pavement.

45. Stratified sedimentary rocks often occur as..
A. Fault.
B. Fold.
C. Sediments.
D. Dip.

46. The problem which doesn't cause landslide in the hill road is..
A. Ground water flow.
B. Unstable rock.
C. Stable rockd Overlay of relatively weak soil.
D. None of the mentioned.
Answer = Stable rockd Overlay of relatively weak soil

47. The alignment of hill roads is divided into how many stages?.
A. One.
B. Two.
C. Three.
D. Four.

48. The general route for alignment is selected during..
A. Reconnaissance.
B. Trace cut.
C. Detailed survey.
D. Detailed project report.

49. The bench marks are fixed during the..
A. Preliminary survey.
B. Reconnaissance.
C. Detailed survey.
D. After detailed project report.

50. The strip length to be surveyed on the straight alignment is..
A. 5 m.
B. 10 m.
C. 15 m.
D. 30 m.

51. The speed limit on the national highway on hill road in Kmph is..
A. 60.0.
B. 50.0.
C. 40.0.
D. 30.0.

52. The minimum right of way distance in exceptional cases is..
A. 7 m.
B. 5 m.
C. 3 m.
D. 4 m.

53. The pavement width for a single lane road on a hill is..
A. 3.5 m.
B. 3.75 m.
C. 7.0 m.
D. 7.5 m.

54. The flatter camber may be provided if the road has a longitudinal gradient greater than..
A. 1 in 40.
B. 1 in 35.
C. 1 in 30.
D. 1 in 20.

55. The camber for the earth roads should be never less than..
A. 0.04.
B. 0.0375.
C. 0.035.
D. 0.03.

56. The stopping sight distance for a speed limit of 50 Kmph is..
A. 30 m.
B. 40 m.
C. 60 m.
D. 120 m.

57. The maximum super elevation on snow bound area is.
A. 0.03.
B. 0.05.
C. 0.07.
D. 0.1.

58. The minimum sufficient straight distance between the transitional ends for reverse curves is.
A. 3.0 m.
B. 5.0 m.
C. 9.0 m.
D. 12.0 m.

59. The absolute minimum radius of the curve in snow bound area is.
A. 60 m.
B. 70 m.
C. 80 m.
D. 90 m.

60. The extra width on a hill road with 300 m radius is..
A. 0.0.
B. 0.6 m.
C. 0.9 m.
D. 1.2 m.

61. For a speed of 30 Kmph, and radius of 30 m, the length of the transition curve is..
A. 15 m.
B. 30 m.
C. 45 m.
D. 60 m.

62. The minimum speed limit design for hair pin bend is..
A. 20 Kmph.
B. 30 Kmph.
C. 40 Kmph.
D. 50 Kmph.

63. The super elevation in the circular portion of the curve is..
A. 1 in 5.
B. 1 in 7.
C. 1 in 10.
D. 1 in 20.

64. The maximum gradient in the curve is..
A. 1 in 30.
B. 1 in 40.
C. 1 in 50.
D. 1 in 60.

65. The approach gradient should not be steeper than __% for 40 m..
A. 5.0.
B. 6.0.
C. 10.0.
D. 20.0.

66. The minimum carriage way width for MDR is..
A. 6.0 m.
B. 6.5 m.
C. 7.5 m.
D. 8.0 m.

67. The minimum straight length between any two successive hair pin bend should not be less than..
A. 30 m.
B. 40 m.
C. 60 m.
D. 70 m.

68. The ruling gradient in steep terrain upto 3 km height in % is.
A. 8.0.
B. 6.0.
C. 7.0.
D. 7.5.

69. The compensated gradient should not be flatter than..
A. 0.04.
B. 0.03.
C. 0.02.
D. 0.01.

70. The value recommended by IRC for a deviation angle of 0.16 and the design speed of 30 Kmph, the length of the summit curve is..
A. 40 m.
B. 75 m.
C. 100 m.
D. 200 m.

71. The value of the valley curve when compared with summit curve for the same design speed may be best justified by..
A. Valley curve value is greater.
B. Summit curve value is greater.
C. Both are equal.
D. Depends on the deviation angle.
Answer = Depends on the deviation angle

72. The minimum radius of inner curve in hair pin bend is..
A. 10 m.
B. 12 m.
C. 14 m.
D. 16 m.

73. The maximum gradient compensation for a pavement of the radius 150 m is..
A. 0.01.
B. 0.02.
C. 0.03.
D. 0.04.

74. The right of way width in normal area for a two lane national highway is..
A. 18 m.
B. 24 m.
C. 36 m.
D. 45 m.

75. The extra width on a hill road with 300 m radius is..
A. 0.0.
B. 0.6 m.
C. 0.9 m.
D. 1.2 m.

76. For a speed of 30 Kmph, and radius of 30 m, the length of the transition curve is..
A. 15 m.
B. 30 m.
C. 45 m.
D. 60 m.

77. The minimum speed limit design for hair pin bend is..
A. 20 Kmph.
B. 30 Kmph.
C. 40 Kmph.
D. 50 Kmph.

78. The super elevation in the circular portion of the curve is..
A. 1 in 5.
B. 1 in 7.
C. 1 in 10.
D. 1 in 20.

79. The maximum gradient in the curve is..
A. 1 in 30.
B. 1 in 40.
C. 1 in 50.
D. 1 in 60.

80. The approach gradient should not be steeper than __% for 40 m..
A. 5.0.
B. 6.0.
C. 10.0.
D. 20.0.

81. The minimum carriage way width for MDR is..
A. 6.0 m.
B. 6.5 m.
C. 7.5 m.
D. 8.0 m.

82. The minimum straight length between any two successive hair pin bend should not be less than..
A. 30 m.
B. 40 m.
C. 60 m.
D. 70 m.

83. The ruling gradient in steep terrain upto 3 km height in % is.
A. 8.0.
B. 6.0.
C. 7.0.
D. 7.5.

84. The compensated gradient should not be flatter than..
A. 0.04.
B. 0.03.
C. 0.02.
D. 0.01.

85. The value recommended by IRC for a deviation angle of 0.16 and the design speed of 30 Kmph, the length of the summit curve is..
A. 40 m.
B. 75 m.
C. 100 m.
D. 200 m.

86. The value of the valley curve when compared with summit curve for the same design speed may be best justified by..
A. Valley curve value is greater.
B. Summit curve value is greater.
C. Both are equal.
D. Depends on the deviation angle.
Answer = Depends on the deviation angle

87. The minimum radius of inner curve in hair pin bend is..
A. 10 m.
B. 12 m.
C. 14 m.
D. 16 m.

88. The maximum gradient compensation for a pavement of the radius 150 m is..
A. 0.01.
B. 0.02.
C. 0.03.
D. 0.04.

89. The right of way width in normal area for a two lane national highway is..
A. 18 m.
B. 24 m.
C. 36 m.
D. 45 m.

90. The minimum design speed on major district road of hill is..
A. 30 Kmph.
B. 40 Kmph.
C. 50 Kmph.
D. 20 Kmph.

91. The width of a pavement of 2 lane national highway is..
A. 7.0 m.
B. 3.75 m.
C. 8.80 m.
D. 3.00 m.

92. The minimum setback is..
A. 0.4 m.
B. 0.2 m.
C. 3.0 m.
D. 5.0 m.

93. The camber for high bitumen road is..
A. 1.7.
B. 2.0.
C. 2.5.
D. 3.0.

94. The SSD value for speed of 20 Kmph is..
A. 20 m.
B. 40 m.
C. 25 m.
D. 50 m.

95. The ISD value of the hill road with a speed of 50 Kmph is..
A. 50m.
B. 100m.
C. 60m.
D. 120m.

96. The minimum super elevation is..
A. 0.07.
B. 0.1.
C. Camber.
D. Longitudinal slope.

A. National highway.
B. MDR.
C. ODR.
D. VR.

98. The maximum gradient compensation for a radius of 150 m is..
A. 1.0.
B. 2.0.
C. 3.0.
D. 4.0.

99. The length of valley curve depends on..
A. Speed limit.
B. deviation angle.
C. Centrifugal acceleration.
D. Speed limit and deviation angle.
Answer = Speed limit and deviation angle

100. The number of steps involved in the construction of hill roads are..
A. One.
B. Two.
C. Three.
D. Four.

101. Where there is insufficient time for blasting the alternative method is..
A. Cliff gallery.
C. Excavation.
D. Both cliff gallery and cradle.

102. The most important structure in a hill road is..
A. Retaining wall.
B. Pavement.
C. Drainage.
D. Security force.

103. The best type of material for retaining wall is..
A. Concrete.
B. Brick masonry.
C. Stone masonry.
D. Composite.

104. The general minimum width adopted for the retaining wall is..
A. 0.3 m.
B. 0.45 m.
C. 0.6 m.
D. 0.9 m.

105. The typical retaining wall is less than..
A. 6 m.
B. 5 m.
C. 4 m.
D. 3 m.

106. The width of the retaining wall foundation is taken as..
A. 0.4h+0.3 m.
B. 0.3h+0.3 m.
C. 0.2h+0.3 m.
D. 0.1h+ 0.3 m.

107. The foundation bed is provided with a downward slope of __ towards the hill side..
A. 1 in 6.
B. 1 in 5.
C. 1 in 3.
D. 1 in 1.

108. The thickness of the pitching done by stone masonry to avoid erosion due to water is..
A. 0.1 m.
B. 0.3 m.
C. 1.0 m.
D. 1.5 m.

109. Catch water drains, sloping drain, road side drains, catch pit and culverts are periodically cleared to prevent..
A. Landslide.
B. Over flow of water.
C. Earthquake.
D. Snowfall.
Answer = Over flow of water

A. Stabilization of soil.
B. Grass turf.
C. Stone masonry.
D. Brick masonry.

111. The problems in snowfall region, of snow is not cleared is overcome by..
A. Hill markers.
B. Snow markers.
C. Traffic signal.

112. The important structure constructed above the road with out impacting the load is called..
A. Gallery.
B. Drainage.
C. Camber.
D. Crown.

113. The frequent problem on the hill road is..
A. Earthquake.
B. Landslide.
C. Soil erosion.
D. Seepage.

114. The landslide denotes..
A. Downward and upward movement of hill slope material.
B. Disintegration of rocks.
C. Earthquake on hill.
D. Breaking of rock.
Answer = Downward and upward movement of hill slope material

115. The landslide doesn't take place due to..
A. Sliding.
B. Falling.
C. Flowing.
D. Breaking.

116. The failure of landslide is classified into how many types?.
A. One.
B. Two.
C. Three.
D. Four.

117. The failure due to shear occurs in..
A. Slides.
B. Falls.
C. Flows.
D. Complex slides.

118. The measure not advisable to prevent landslide is..
A. Soil nailing.
B. Geo synthetic fibre.
C. Soil stabilization by any method.
D. Retaining wall.
Answer = Soil stabilization by any method

119. The studies prepared for environmental studies are called..
A. EIA.
B. Environmental study.
C. Environment assessment.
D. Environment conservation.

120. The pressing problems on the existing highway are..
A. Encroachment.
B. Ribbon development.
C. Both encroachment and ribbon development.
D. Traffic.
Answer = Both encroachment and ribbon development

121. The number of factors to be considered during the road side development studies are..
A. Three.
B. Four.
C. Five.
D. Six.

122. The cross drainage structure of a highway is considered in which aspect?.
A. Highway factors.
B. Highway traffic factors.
C. Maintenance aspects.

123. The compensation for loss of land in agricultural areas should be paid..
A. During the planning stage.
B. Before construction of highway.
C. After completion of the highway.
D. Not required.
Answer = Before construction of highway

124. The point that should not be considered for a better highway is..
A. Smooth alignment.
B. Small right of way.
C. Flat slopes.
D. Suitable plantation.
Answer = Small right of way

125. The planting of trees along road side is called..
A. Arboriculture.
B. Geometry design.
C. Green belt.
D. Garden.

126. The trees in urban areas are provided for..
A. Beauty and landscape.
B. For fruits.
D. To provide a cool weather.

127. The desirable distance for a tree from the carriage way is..
A. 1.0 m.
B. 1.5 m.
C. 2.0 m.
D. 2.5 m.

128. The number of trees required for 1 km of length in nursery are..
A. 100.0.
B. 150.0.
C. 180.0.
D. 270.0.

129. The improvement in highway leads to the following..
A. Increase in vehicle operation cost.
B. Decreased comfort to passenger.
C. Reduction in accident rate.
D. Difficulty in driving.
Answer = Reduction in accident rate

130. Several highway are implemented by..
A. Government.
B. Private.
C. Public private partnership.
D. Depends on the requirement.

131. The improvement benefits of roads don't include which type?.
A. Improvement in city.
B. Improvement in a district.
C. Improvement in a state.
D. Improvement in between two countries.
Answer = Improvement in between two countries

132. The benefits due to the road improvement are classified into how many types?.
A. One.
B. Two.
C. Three.
D. Four.

133. The social facilities like medical services, educational and recreation facilities are classified as..
A. Tangible benefits.
B. Intangible benefits.
C. Both.
D. None.

134. The cost of the vehicle operation and time for unit distance may be represented by..
A. T=a+b+c.
B. T=a+ (b+c)/speed.
C. T=a+b.
D. T=a.

135. The rate of fuel consumption for every motor cycle will be at..
A. Low speed.
B. High speed.
C. Optimum speed.
D. Zero speed.

136. The unevenness index in terms of international roughness index is given by..
A. UI=IRI.
B. UI=IRI/2.
C. UI=IRI/3.
D. UI=(IRI)1.12.

137. As the unevenness index increases there is no substantial increase in..
A. Fuel consumption.
B. Wear and rear of tyres.
C. Vehicle maintenance cost.
D. Increase of speed.

138. The maximum life span assumed for the highway is..
A. 70 years.
B. 80 years.
C. 90 years.
D. 100 years.

139. The average annual highway cost for a road system may be summed up by..
A. Ca=H+T+M+Cr.
B. Ca=H+T+M-Cr.
C. Ca=H+T.
D. Ca=H.

140. The CRF denotes..
B. Capital Recovery Fund.
C. Capital Recovery Factor.
D. Central Research Fund.

141. The Vs in average annual capital cost represents..
A. Savage value.
B. Salvage value.
C. Waste value.
D. Usable value.

142. If the principal is P and rate of interest is i and it has to be paid in n years then, the sum S is given by..
A. P(1+i).
B. P(1-i).
C. P/I.
D. P(1+i)n.

143. The first step in economic analysis is..
B. Estimate growth rate.
C. Assessment of traffic route.

144. The method not used in economic analysis is..
A. Annual cost.
B. Rate of return.
C. Benefit cost ratio.
D. Floating car.

145. The savings in annual road user costs, annual savings in accident costs and capital cost of Improvement are parameters used in ..
A. Annual cost method.
B. Rate of return method.
C. Benefit cost ratio.
D. None.
Answer = Rate of return method

146. The ratio of annual benefit from improvement to annual cost of the improvement is called..
A. Benefit.
B. Cost.
C. Benefit cost ratio.
D. Maintenance cost.

147. A district road with a bituminous pavement has a horizontal curve of 1000 m for a design speed of 75 km ph. The super-elevation is.
A. 1 in 40.
B. 1 in 50.
C. 1 in 60.
D. 1 in 70.

148. The minimum value of camber provided for thin bituminous surface hill roads, is.
A. 0.022.
B. 0.025.
C. 0.03.
D. 0.035.

149. Design of horizontal and vertical alignments, super-elevation, sight distance and grades, is worst affected by.
A. width of the vehicle.
B. length of the vehicle.
C. height of the vehicle.
D. speed of the vehicle.
Answer = speed of the vehicle

150. Thickness of a pavement may be reduced considerably by.
A. compaction of soil.
B. stabilisation of soil.
C. drainage of soil.
D. combination of all the above..
Answer = combination of all the above.

151. The total length of a valley formed by two gradients - 3% and + 2% curve between the two tangent points to provide a rate of change of centrifugal acceleration 0.6 m/sec2, for a design speed 100 km ph, is.
A. 16.0 m.
B. 42.3 m.
C. 84.6 m.
D. none of these..

152. Traffic engineering only includes.
A. planning of regulatory measures.
B. design and application of control devices.
C. analysis of traffic characteristics.
D. all the above..

153. For the movement of vehicles at an intersection of two roads, without any interference, the type of grade separator generally preferred to, is.
A. delta.
B. trumpet.
C. diamond interchange.
D. clover leaf..

154. If the ruling gradient on any highway is 3%, the gradient provided on the curve of 300 metre radius, is.
A. 0.02.
B. 0.0225.
C. 0.025.
D. 0.0275.

155. As per recommendations of I.R.C., traffic volume study is carried out for rural roads for 7 days continuously during.
A. harvesing.
B. lean season.
C. harvesting and lean season.
D. none of these..
Answer = harvesting and lean season

156. The minimum ratio of the radii of two circular curves of a compound curve, is kept.
A. 1.25.
B. 1.5.
C. 1.75.
D. 2.0.

157. Pick up the incorrect statement from the following. The super-elevation on roads is.
A. directly proportional to width of pavement.
B. directly proportional to velocity of vehicles.
C. inversely proportional to acceleration due to gravity.
D. inversely proportional to the radius of curvature..
Answer = directly proportional to velocity of vehicles

158. The weaving length of a roadway is the distance.
A. between the channelising islands.
B. equal to half circumference.
D. equal to diameter of rotary..
Answer = between the channelising islands

159. Road makers along roads from the edge of a kerb should not be less than.
A. 40 cm.
B. 45 cm.
C. 50 cm.
D. 60 cm.

160. Traffic surveys are carried out.
A. to know the type of traffic.
B. to determine the facilities to traffic regulations.
C. to design proper drainage system.
D. all the above..

161. The usual width of parapet walls along Highways in hilly region, is.
A. 50 cm.
B. 60 cm.
C. 70 cm.
D. 80 cm.

162. The road foundation for modern highways construction, was developed by.
A. Tresguet.
B. Telford.

163. Width of vehicles affects the width of.
A. lanes.
B. shoulders.
C. parking spaces.
D. all the above..

164. First operation during the detailed survey of a hill road, is.
A. hydrological and soil surveys.
B. adjustment of alignment along with curves.
C. derivation of longitudinal and cross-sections.
D. fixation of Bench Marks.
Answer = fixation of Bench Marks

A. sand.
B. stone dust.
C. cement.
D. brick dust..

166. According to Highway Research Board of U.S.A. practical land width, is.
A. 2.7 m.
B. 3.0 m.
C. 3.3 m.
D. 3.6 m.

167. Design of flexible pavements is based on.
A. mathematical analysis.
B. empirical formulae.
C. a compromise of pure theory and pure empirical formula.
D. none of these..
Answer = a compromise of pure theory and pure empirical formula

168. The efficiency of the brakes of a vehicle depends upon.
B. condition of the tyres.
C. presence of the show moisture.
D. all the above..

169. Maximum super-elevation on hill roads should not exceed.
A. 0.05.
B. 0.07.
C. 0.08.
D. 0.1.

170. The type of transition curves generally provided on hill roads, is.
A. circular.
B. cubic parabola.
C. Lemniscate.
D. spiral..

171. The maximum safe speed on roads, depends on the.
A. type of the highway.
C. type of curves.
D. all the above..

172. The basic formula for determination of pavement thickness was first suggested by.
A. Spanglar.
B. Picket.
C. Kelly.
D. Goldbeck.

173. Increase in traffic volume, due to increase in transport vehicles, is known as.
A. development traffic.
B. normal traffic growth.
C. generated traffic growth.
D. current traffic.

174. If R is the radius of a main curve and L is the length of the transition curve, the shift of the curve, is.
A. L/24 R.
B. L^2/24 R.
C. L^3/24 R.
D. L^4/24 R.

175. The weight of vehicles affects.
A. pavement thickness.
D. All the above..

176. Pick up the correct statement from the following:.
A. During reconnaissance, the general route of the alignment is selected.
B. After reconnaissance, a trace is cut for the alignment.
C. Last stage is the detailed surveys for desired geometries'of the highway.
D. All the above..

177. Deviation of the alignment of a trace cut may be permitted in areas involving.
A. land slides.
B. sand dunes.
C. dens.
D. none of these..

178. If cross slope of a country is 10% to 25%, the terrain is classified as.
A. rolling.
B. mountainous.
C. steep.
D. plain..

179. Shoulders for high traffic volume roads, should.
A. be stable throughout the year to be used by vehicles in the case of emergency.
B. support and protect the ends of carriage ways.
C. not allow entrance of water to sub-grade.
D. all the above..

180. According to the recommendations of Nagpur Conference, the width formation of an ideal National Highway in hard rock cutting, is.
A. 8.9 m.
B. 7.9 m.
C. 6.9 m.
D. 6.5 m.

181. The absolute minimum radius of horizontal curve for a design speed 60 km ph is.
A. 131 m.
B. 210 m.
C. 360 m.
D. none of these..

182. Volume of traffic which would immediately use a new road or an improved one when opened to traffic, is known.
A. development traffic.
B. current traffic.
C. general traffic.
D. normal traffic growth..

183. Pick up the correct statement from the following:.
A. Safety fences are provided on either side of a roadway if embankments are in excess of 6 metres.
B. Safety fences are provided on outside of the curves of radii less than 750 m if the embankments are between 3 metres and 6 metres.
C. Guard stones are provided at 2.5 metres intervals if embankments are between 1.6 metres to 3 metres.
D. All the above..

184. In India the modes of transportation, in the order of their importance, are.
A. air transport, shipping, roads, railways.
B. shipping, roads, railways, air transport.
C. roads, railways, air transport, shipping.
D. railways, roads, shipping, air transport.

185. On the recommendations of Indian Road Congress, the ruling gradient in plains, is.
A. 1 in 15.
B. 1 in 20.
C. 1 in 30.
D. 1 in 45.

186. The head light of vehicles should be such that its lower beam illuminates objects at.
A. 10 m.
B. 20 m.
C. 30 m.
D. 40 m.

187. The length of the side of warning sign boards of roads is.
A. 30 cm.
B. 40 cm.
C. 45 cm.
D. 50 cm.

188. A single lane carriage way whenever changes to two-lane carriage way, is affected through a taper of.
A. 1 in 10.
B. 1 in 15.
C. 1 in 20.
D. 1 in 15 to 1 in 20.
Answer = 1 in 15 to 1 in 20

189. The wall constructed for the stability of an excavated portion of a road on the hill side, is known as.
A. retaining wall.
B. breast wall.
C. parapet wall.
D. all the above..

190. Maximum number of passenger cars that can pass a given point on a road during one hour under the most ideal road way and traffic conditions, is known as.
A. traffic density.
B. basic capacity of traffic lane.
C. possible capacity of traffic lane.
D. all the above..
Answer = basic capacity of traffic lane

191. Reinforcement in cement concrete slab of road pavements, is placed.
A. longitudinally.
B. transversely.
C. longitudinally and transversely.
D. in the form of welded wire mesh.
Answer = in the form of welded wire mesh

192. According to IRC : 52-1973, for a single lane National Highway in hilly region,.
A. width of the carriageway must be 3.75 m.
B. shoulders on either side must be 1.25 m.
C. total width of the road-way must be 6.25 m.
D. total of the above..
Answer = total of the above.

193. If x% is the gradient of an alignment and y% is the gradient after proper superelevation along a curved portion of a highway, the differential grade along the curve, is.
A. (x + y)%.
B. (x - y)%.
C. (y - x)%.
D. (x x y)%.

194. In an ideal transition curve, the radius of curvature.
A. is constant.
B. at any point is directly proportional to its distance from the point of commencement.
C. is inversely proportional to the radius of main curve.
D. is directly proportional to the radius of main curve.

195. On concrete roads, the camber generally provided, is.
A. 1 in 20 to 1 in 24.
B. 1 in 30 to 1 in 48.
C. 1 in 36 to 1 in 48.
D. 1 in 60 to 1 in 72.
Answer = 1 in 60 to 1 in 72

196. While calculating the sight distances, the driver's eye above road surface, is assumed.
A. 90 cm.
B. 100 cm.
C. 110 cm.
D. 120 cm.

197. If the number of lanes on the carriageway of a road is more than two, the total width of lane ways is equal to 3.0 m.
A. + 0.60 m.
B. + 0.70 m.
C. + 0.80 xn.
D. + 0.90 m.

198. Minimum thickness of a layer of fine sand required to cut off capillary rise of water completely, should be.
A. 40 cm.
B. 52 cm.
C. 64 cm.
D. 76 cm.

199. The desirable camber for straight cement concrete roads, is.
A. 1 in 33 to 1 in 25.
B. 1 in 40 to 1 in 33.
C. 1 in 150 to 1 in 140.
D. 1 in 160 to 1 in 140.
Answer = 1 in 160 to 1 in 140

200. Minimum permissible speed on high speed roads, is decided on the basis of.
A. 15 percentile cumulative frequency.
B. 20 percentile cumulative frequency.
C. 30 percentile cumulative frequency.
D. 40 percentile cumulative frequency..
Answer = 15 percentile cumulative frequency

201. The ideal shape of a transition curve, is.
A. clothoid.
B. cubic spiral.
C. cubic parabola.
D. lamniscate.

202. At a road junction, 7 cross conflict points are severe if.
D. none of these..

203. To indicate proper control of consistency of a freshly mixed concrete for pavement construction, the slump should be between.
A. 3 to 5 cm.
B. 4 to 6 cm.
C. 5 to 7 cm.
D. 7 to 10 cm.
Answer = 7 to 10 cm

204. Driving vehicles on wet surfaced roads, is dangerous because it may.
A. skid.
B. slip.
C. overturn.
D. all the above..

205. The width of different roads as recommended in Nagpur plan by the Indian Road Conference for hilly region, is.
A. same for National Highways.
B. different for National Highways.
C. same for State Highways.
D. same for Major District roads..
Answer = different for National Highways

206. If D is the degree of a curve, the percentage reduction of gradient, is.
A. 0.01 D.
B. 0.02 D.
C. 0.03 D.
D. 0.04 D.

208. For the administration of road transport, a Motor Vehicle Act was enacted in.
A. 1927.0.
B. 1934.0.
C. 1939.0.
D. 1947.0.

209. The absolute minimum sight distance required for stopping a vehicle moving with a speed of 80 km ph, is.
A. 120 m.
B. 200 m.
C. 640 m.
D. none of these..

210. Along high ways confirmatory route markers are generally fixed.
A. before the crossing on the left side.
B. after the crossing on the left side.
C. before the crossing on the right side.
D. after the crossing on the right side..
Answer = after the crossing on the left side

211. Length of vehicles does not affect.
A. extra widening.
C. passing sight distance.
D. width of shoulders.

212. Road width 8.8 m of two lane National highways or State highways in mountainous terrain.
A. excludes the width of parapet (0.6 m).
B. excludes the width of side drain (0.6 m).
C. excludes the width of parapet and side drain.
D. includes the width of parapet and side drain.
Answer = excludes the width of parapet and side drain

213. Pick up the correct statement from the following:.
A. Long tangent sections exceeding 3 km in length should be avoided.
B. Curve length should be at least 150 metres for a deflection angle of 5 degress.
C. For every degree decrease in the deflection angle, 30 metre length of curve to be increased.
D. All the above..

214. Transverse joints are provided at distances varying from.
A. 10 m to 15 m.
B. 12 m to 18 m.
C. 16 m to 24 m.
D. 17 m to 27 m.
Answer = 17 m to 27 m

215. Pick up the correct statement from the following:.
A. Seasonal cycle of traffic volume during April and November, is usually near the annual average.
B. Mid-winter seasonal cycle of traffic is least.
C. Mid-summer seasonal cycle of traffic is highest.
D. All the above..

A. higher speed of vehicles.
B. increased volume of traffic.
C. reduced maintenance cost of the roads.
D. All the above..

217. The shape of a vertical curve, is.
A. parabolic.
B. elliptical.
C. circular.
D. spiral.

218. To prevent movement of moisture from subgrade to road pavement at the same level as that of water-table, thickness of a cut off layer of coarse sand, is.
A. 15 cm.
B. 20 cm.
C. 30 cm.
D. 45 cm.

219. For Indian conditions, the water bound macadam roads, are suitable if daily traffic does not exceed.
A. 2000 tonnes.
B. 2500 tonnes.
C. 3000 tonnes.
D. 3500 tonnes.

220. For maximum strength and durability minimum percentage of cement, by weight is.
A. 0.15.
B. 0.2.
C. 0.25.
D. 0.3.

221. Camber in pavements is provided by.
A. straight line method.
B. parabola method.
C. straight at the edges and parabolic at the crown.
D. all the above..

222. The minimum design speed of various types of highways in plain terrain is the same as the ruling design speed of.
A. rolling terrain.
B. mountainous terrain.
C. steep terrain.
D. none of these..

223. Passing zones are generally not provided on.
A. summit curves.
B. horizontal curves.
C. two lane highways.
D. all the above..

224. The normal road width of National and State highways.
A. is kept 45 m.
B. in plain and rolling terrain built-up area, is 30 m.
C. in mountainous built-up area is 20 m.
D. All the above..

225. The extra widening of pavements recommended by Indian Roads Congress for hill roads having radius 150 metres, is.
A. 1.5 m.
B. 1.0 m.
C. 0.5 m.
D. 0.0 m.

226. The steepest gradient permitted on roads which, in ordinary conditions, does not exceed, is known.

227. For night travel, the length of a valley curve should be such that the head light beam distance is the same as.
A. stopping sight distance.
B. overtaking sight distance.
C. sum of (a) and (b).
D. difference of (a) and (b).

228. Stability of hill slopes depends upon.
A. nature of the slope.
B. angle of the slope.
C. geological conditions.
D. All the above..

229. Selection of the routes, of highways depends upon.
A. feasibility of attaining ruling gradient.
B. avoidance of cutting hard rocks.
C. minimum number of bridges.
D. All the above..

230. The first stage of deciding the alignment of a hill road, is.
A. reconnaissance.
B. detailed survey.
C. trace-out.
D. preliminary survey..

231. While designing hair pin bends on higways, the minimum.
A. designed speed is 20 km/hour.
B. gradient is 1 in 40.
C. gradient is 1 in 200.
D. All the above..

232. Pick up the incorrect statement from the following:.
A. Tresguet did not provide the top camber for the drainage of surface water.
B. Tresguet provided the top camber for the drainage of surface water.
C. Telford provided two layers of stones in the central 5.4 m width and one layer was provided on the sides.
D. Macadam provided a camber to the formation at the dug-up state, to drain percolated water..
Answer = Tresguet did not provide the top camber for the drainage of surface water

233. Cement grouted pavement is classified as.
A. rigid pavement.
B. semi-rigid pavement.
C. flexible pavement.
D. none of these..

234. Intermediate catch water drains are provided only, if.
A. catchment area of the watershed above road is large.
B. intensity of rainfall is heavy.
C. single catch water drain is inadequate.
D. all the above..

235. Pick up the correct statement from the following:.
A. Minimum desirable width of medians on rural highways is 5 metres.
B. Minimum width of medians should be 3 metres.
C. On long bridges and viaducts, the width of medians should be 1.5 m.
D. All the above..

236. Floating gradients are generally provided.
C. at summit curves.
D. at valley curves.

237. Raising of outer edge of a road with respect to inner edge, is known.
A. super elevation.
B. cant.
C. banking.
D. all the above..

238. Width of the shoulders of carriage way is generally kept.
A. 100 cm.
B. 125 cm.
C. 150 cm.
D. 250 cm.

239. The inventor of road making as a building science, was.
A. Sully.
B. Tresguet.
C. Telford.

240. Area of steel required per metre width of pavement for a length of 20 m for design wheel load 6300 kg and permissible stress in steel 1400 kg/cm2, is.
A. 70 kg/sq cm.
B. 80 kg/sq cm.
C. 90 kg/sq cm.
D. 100 kg/sq cm.

241. Design of horizontal curves on highways, is based on.
A. design speed of vehicles.
B. permissible friction on the road surface.
C. permissible centrifugal ratio.
D. All the above..

242. If no super elevation is provided on a road along curves, pot holes may develop at.
A. inner edge of the road.
B. outer edge of the road.
D. no where on the road..

243. Enoscope is used to determine.
A. spot speed.
B. average speed.
C. travel time.
D. none of these..

244. The width of road pavements, depends upon.
A. width of traffic lane.
B. number of traffic.
C. width of median strip.
D. all the above..

245. The minimum vertical clearance of overhanging cliffs or any other structure above the surface of a hill road, should be.
A. 3 m.
B. 4 m.
C. 5 m.
D. 6 m.

246. Speed regulations on roads is decided on the basis of.
A. 60 percentile cumulative frequency.
B. 75 percentile cumulative frequency.
C. 80 percentile cumulative frequency.
D. 85 percentile cumulative frequency..
Answer = 85 percentile cumulative frequency.

247. Reconnaissance is best done with the help of.
A. aerial photographic survey.
B. condastral surveys.
C. topographical surveys.
D. triangulation surveys.

248. The usual width of side drains along Highways in hilly region, is.
A. 50 cm.
B. 60 cm.
C. 70 cm.
D. 80 cm.

249. Normal formation width of a hill road for one-way traffic, is.
A. 3.6 m.
B. 4.8 m.
C. 6.6 m.
D. 7.2 m.

A. outer edge so that the inner edge is lowered.
B. crown so that outer edge is raised and inner edge is lowered.
C. inner edge so that outer edge is raised.
D. none of these..
Answer = inner edge so that outer edge is raised

251. Minimum thickness of the base of a flexible pavement, is.
A. 10 cm.
B. 15 cm.
C. 20 cm.
D. 25 cm.

252. One-way streets are generally provided in crowded cities as, these.
A. are inexpensive means of traffic flow.
B. reduce delays to vehicles.
C. permit higher speed.
D. All the above..

253. The perpendicular offset from the tan-get to the central point of the circular curve, is.
A. R sin θ/2.
B. R cos θ/2.
C. R (1 - cos θ/2).
D. R (1 - sin θ/2).
Answer = R (1 - cos θ/2)

254. An Executive Engineer of roads, executes works under direct control of.
A. Superintending Engineer.
B. Secretary to the Govt.
C. Chief Engineer.
D. None of these..

255. Newly constructed pavement with ordinary Portland cement attains its working strength after.
A. 7 days.
B. 14 days.
C. 21 days.
D. 28 days.

256. Curves in the same direction separated by short tangents, are called.
A. simple circular curves.
B. compound curves.
C. transition curves.
D. broken-back curves..

257. When an up gradient of a highway meets a downgrade, the vertical curve provided, is known as.
A. valley curve.
B. sag curve.
C. summit curve.
D. all the above..

258. If the coefficient of friction on the road surface is 0.15 and a maximum super-elevation 1 in 15 is provided, the maximum speed of the vehicles on a curve of 100 metre radius, is.
A. 32.44 km/hour.
B. 42.44 kg/hour.
C. 52.44 km/hour.
D. 62.44 km/hour.

259. The wall constructed for the stability of a back filling portion of a road on the down hill side, is known as.
A. retaining wall.
B. breast wall.
C. parapet wall.
D. all the above..

260. If the velocity of moving vehicles on a road is 24 km/per hour, stopping distance is 19 metres and average length of vehicles is 6 metres, the basic capacity of lane, is.
A. 500 vehicles per hour.
B. 700 vehicles per hour.
C. 1000 vehicles per hour.
D. 1250 vehicles per hour.
Answer = 1000 vehicles per hour

261. In case of a multi-lane road, overtaking is generally permitted.
A. from right.
B. from left.
C. from both sides right and left.
D. not at all..
Answer = from both sides right and left

262. The pavement width of a road depends upon.
A. terrain.
B. type of traffic.
C. number of lanes.
D. all the above..

263. For a vehicle moving with a speed of 80 km per hour, the brake reaction time, in ordinary cases, is.
A. 1 sec.
B. 1.5 sec.
C. 2.0 sec.
D. 2.5 sec.

264. The desirable camber for straight roads with thin bituminous surfacing, is.
A. 1 in 33 to 1 in 25.
B. 1 in 40 to 1 in 33.
C. 1 in 150 to 1 in 140.
D. 1 in 160 to 1 in 140.
Answer = 1 in 150 to 1 in 140

265. Minimum stopping distance for moving vehicles on road with a design speed of 80 km/hour, is.
A. 80 m.
B. 100 m.
C. 120 m.
D. 150 m.

266. If the radii of a compound curve and a reverse curve are respectively the same, the length of common tangent.
A. of compound curve will be more.
B. of reverse curve will be more.
C. of both curves will be equal.
D. none of these..
Answer = of both curves will be equal

267. If cross slope of a country is greater than 60%, the terrain is classified as.
A. rolling.
B. mountainous.
C. steep.
D. plain..

268. Side drains on both sides of a hill road, are essential when the road is.
A. along the spur curves.
B. along the re-entrant curves.
C. in cutting.
D. none of these..

269. Parapet walls along hill roads, are provided.
A. to retain the back filling.
B. to prevent the hill from sliding.
C. to prevent the wheels of the vehicle from coming on the retaining wall.
D. none of these..
Answer = to prevent the wheels of the vehicle from coming on the retaining wall

270. From the point of tangency before an intersection, the route markers are fixed at a distance of.
A. 15 m to 30 m.
B. 20 m to 35 m.
C. 40 m to 50 m.
D. 100 m to 150.
Answer = 100 m to 150

271. A gradient along which the vehicle does not require any tractive effort to maintain a specified speed, is known as.

272. The traffic carrying capacity of a single lane, depends on.
A. type of the vehicles.
B. level crossings.
D. All the above..

273. The number of vehicles moving in a specified direction on a roadway that pass a given point during specified unit of time, is called.
A. traffic volume.
B. traffic density.
C. basic capacity.
D. traffic capacity..

274. Bottom-most component of a flexible pavement, is.
B. sub-base.
C. base.
D. base course..

275. Pavement is said to be flexible if it contains.
B. stabilised soil base constructed of lime cement or tar.
C. bitumen-bound stone layer of varying aggregates.
D. All the above..

276. In ideal pavement is constructed with.
A. bricks.
B. hard soil.
C. Portland cement concrete.
D. tar.

277. Round-abouts are not suitable if number of vehicles exceed.
A. 3000.0.
B. 4000.0.
C. 5000.0.
D. 6000.0.

278. For a comfortable travel on Highways, the centrifugal ratio should not exceed.
A. 0.1.
B. 0.15.
C. 0.2.
D. 0.25.

279. The traffic manoeuvre means.
A. diverging.
B. merging.
C. crossing.
D. all the above..

280. The width formation of a road means the width of.
A. carriageway.
B. pavement and shoulders.
C. embankment at ground level.
D. embankment at the top level..
Answer = embankment at the top level.

281. If P is the number of vehicles per day at last census, r is the increase in traffic and n is the number of years passed after last census, number of vehicles A per day for design, is.
A. P (1 + r)^n.
B. P (1 - r)^n.
C. P (1 + r)^(-n+5).
D. P (1 + r)^5n.
Answer = P (1 + r)^n

A. provided camber along spur curves.
B. provided camber along valley curves.
C. seldom provided a camber.
D. None of these..
Answer = seldom provided a camber

A. 10 cm.
B. 15 cm.
C. 20 cm.
D. 30 cm.

284. For clear distinct vision, images of obstructions should fall on the retina with a cone of.
A. 2°.
B. 3°.
C. 4°.
D. 5°.

285. The distance travelled by a moving vehicle during perception and brake reaction times, is known as.
A. sight distance.
B. stopping distance.
C. lag distance.
D. none of these..

286. Following type of pavement is generally known as flexible pavement.
C. road constructed with various layers of building material well compacted.
D. all the above..

287. The minimum width of the pavement of a National Highway should be.
A. 4.7 m.
B. 5.7 m.
C. 6.7 m.
D. 7.7 m.

288. If the radius of curvature of a hill road is 50 m, the percentage grade compensation should be.
A. 60/R.
B. 70/R.
C. 75/R.
D. 80/R.

289. In scanty rainfall regions, the camber provided will be.
A. nil.
B. flatter.
C. steeper.
D. None of these..

290. An exceptional grade may be provided upto 1 in 12 along hill roads, if the length does not exceed.
A. 45 m per km.
B. 60 m per km.
C. 75 m per km.
D. 90 m per km.
Answer = 60 m per km

291. The head of public works department of any Indian state, is.
A. Transport Minister.
B. Chief Engineer.
C. Superintending Engineer.
D. Executive Engineer..

292. On most smooth hard surfaced roads, rolling resistance to moving vehicles, ranges from.
A. 5 kg to 7 kg/tonne.
B. 7 kg to 9 kg/tonne.
C. 9 kg to 11 kg/tonne.
D. 11 kg to 13 kg/tonne.
Answer = 9 kg to 11 kg/tonne

293. Pick up the incorrect statement from the following. The width of the right-of-way is decided so as to accommodate.
A. formation width.
B. side slopes.
C. horizontal curve.
D. vertical curve.

294. Formation width of a hill road is the distance between.
A. outer end of side drain to outer end of parapet wall.
B. outer end of side drain to inner end of parapet wall.
C. inner end of side drain to outer end of parapet wall.
D. inner end of side drain to inner end of parapet wall.
Answer = outer end of side drain to outer end of parapet wall

295. California Bearing Ratio method of designing flexible pavements is more accurate as it involves.
A. characteristics of soils.
B. traffic intensities.
C. character of the road making materials.
D. none of these..

296. Longitudinal pavement lines marked broken in white paint.
A. are for the guidance of the drivers.
B. are not to be crossed over.
C. may be crossed over at the discretion of the driver.
D. all the above..
Answer = may be crossed over at the discretion of the driver

297. Design of flexible pavement, involves.
B. intensity of traffic.
C. climate of the region.
Answer = climate of the region

298. Design of highways is based on.
B. axle spacings.
C. wheel bases.
D. All the above..

299. On a pavement with parabolic camber, the angle of inclination of the vehicles will be.
A. more at the crown.
B. less at the edges.
C. more at the edges.
D. same at the edges as well as at the crown.
Answer = more at the edges

300. The difference in gradients after full super-elevation and the initial alignment of a road, is known as.

301. If the radius of a main curve is 300 m and length of the transition curve is 100 m, the angle with tangent to locate the junction point, is.
A. 1° 11'.
B. 2° 11'.
C. 3° 11'.
D. 4° 11'.

302. Minimum radius of a simple circular curve deflecting through 5°, is.
A. 1618.9 m.
B. 1816.9 m.
C. 1718.9 m.
D. 1817.9 m.

303. When a number of hair pin bends are introduced, a minimum intervening distance in between is kept.
A. 20 m.
B. 40 m.
C. 60 m.
D. 100 m.

304. If the designed speed on a circular curve of radius 1400 m is 80 km/hour, no superelevation is provided, if the camber, is.
A. 0.04.
B. 0.03.
C. 0.02.
D. 0.017.

305. Width of a rotary round should be equal to.
B. width of the widest road.
C. width of the widest road plus the width of one lane.
D. width of the widest road plus 2 metres..
Answer = width of the widest road plus the width of one lane

306. To prevent movement of moisture from subgrade to road pavement on embankments about 0.6 m to 1 m higher than water table, the thickness of cut off layer of coarse sand used, is.
A. 15 cm.
B. 20 cm.
C. 30 cm.
D. None of these..

307. The statement, regarding the size of stones used at the wearing surface. "The size of a stone used on a road must be in due proportion to the space occupied by a wheel of ordinary dimensions on a smooth level surface. The point of contact will be found to be longitudinal about 2.5 cm and every piece of stone put into the road which exceeds 2.5 cm in any of its dimension is mischievious" was made by.
A. Telford.
C. Tresguet.
D. Sully..

308. If L metres is the distance between extreme axles of a vehicle, its gross load should not exceed.
A. 1525 (L + 4.3) - 14.7 L^2.
B. 1526 (L + 5.3) - 14.7 L^2.
C. 1525 (L + 6.3) - 14.7 L^2.
D. 1525 (L + 7.3) - 14.7 L^2.
Answer = 1525 (L + 7.3) - 14.7 L^2

309. For a 6.6 m wide two lane pavement, berms are provided on either side having a width of.
A. l.00 m.
B. 1.25 m.
C. 1.50 m.
D. 1.75 m.

310. For the design of cement concrete pavement for corner loading, Indian Road Congress recommends the use of.
A. Westergard's formula.
B. Kelly's formula.
C. Goldbeck's formula.
D. Picker's formula..

311. 1.R.T.D.A. (Indian Roads and Transport Development Association) was set up at Bombay in.
A. 1907.0.
B. 1917.0.
C. 1927.0.
D. 1937.0.

312. The total value of extra widening required at a horizontal curve on a two lane hill road of radius 42 m for a design speed of 50 kmph and for vehicles with wheel base 6 m, is.
A. 0.500 m.
B. 0.589 m.
C. 1.089 m.
D. 0.089 m.

313. Depth of reinforcement below the surface of a concrete pavement, is generally kept.
A. 5 cm.
B. 6 cm.
C. 7 cm.
D. 8 cm.

314. Volume of traffic which is due to improvement carried out in adjacent area, is known as.
A. development traffic.
B. generated traffic growth.
C. normal traffic growth.
D. current traffic..

315. Roughness index of roads, is expressed as.
A. size of the stone on the pavement.
B. number of patches on the pavement.
C. cumulative deformation of surface per horizontal distance.
D. type of the road surface..
Answer = cumulative deformation of surface per horizontal distance

316. Pick up the correct statement from the following:.
A. The height of head light above road surface, is taken as 0.75 m.
B. The beam of head light is up to one degree upwards from the grade of road.
C. While designing the valley curve, the height of the object is assumed nil.
D. All the above.

317. Degree of a road curve is defined as the angle in degrees subtended at the centre by an arc of.
A. 10 metres.
B. 20 metres.
C. 25 metres.
D. 30 metres.

318. The tangent length of a simple circular curve of radius R deflecting through θ°, is.
A. R tan θ.
B. R tan θ/2.
C. R sin θ.
D. R sin θ/2.

319. Which one of the following transportation systems is not used for the conveyance of passengers in India?.
A. railways.
C. shipping.
D. pipe lines..

320. Thickness of broken line markings on multi-lane road for lanes is generally kept.
A. 10 cm.
B. 12 cm.
C. 15 cm.
D. 18 cm.

321. If a Lemniscate curve of transition throughout is introduced to connect two parallel roads, the maximum polar angle of the curve, is.
A. 10°.
B. 15°.
C. 20°.
D. 30°.

322. If the cross slope of a country is 25% to 60%, the terrain is classified as.
A. plain.
B. rolling.
C. steep.
D. mountainous..

323. Setting out of Lemniscate transition curves, is done with.
A. perpendicular offsets.
C. deflection angles.
D. polar deflection angles..

324. Reference pillars fixed on the centre line of a proposed road, provide the following information:.
A. reduced distance (R.D.).
B. horizontal distance of road from the centre line.
C. reduced level at the top of pillar.
D. All the above..

325. The normal road land width for a major district road in open area, is.
A. 45 m.
B. 25 m.
C. 15 m.
D. 12 m.

326. On earth roads, the camber should preferably be.
A. 1 in 20 to 1 in 24.
B. 1 in 30 to 1 in 48.
C. 1 in 15 to 1 in 20.
D. 1 in 10 to 1 in 15.
Answer = 1 in 20 to 1 in 24

327. The convexity provided to the carriageway between the crown and edge of the pavement, is known as.
A. super-elevation.
B. camber.
C. height of the pavement.
D. None of these..

328. Alignment of highways in hilly regions, is decided on.
A. long stretch of very hard cutting.
B. number of river crossings.
C. natural unstable areas.
D. All the above..

B. 10 tO 20 per cent easier than ruling gradients.
C. 10 to 20 per cent steeper than ruling gradients.
D. none of these..

330. The width of the right of way in urban area, is kept between 24 m to 60 m for.
A. National Highways.
B. State Highways.
C. Both (a) and (b).
D. None of these..
Answer = Both (a) and (b)

331. If the rate of change of the super-elevation along a curved portion of a 7 metre wide road is 1 in 150 and the maximum super-elevation allowed is 1 in 15, the maximum length of the transition curve to be provided at either end, is.
A. 65 m.
B. 70 m.
C. 75 m.
D. 80 m.

332. The full width of land acquired before finalising a highway, alignment is known.
A. width of formation.
B. right of way.
C. carriage way.

333. Retaining walls are generally constructed with dry rubble stones with 60 cm top width and.
A. 1 : 2 front batter.
B. 1 : 3 front batter.
C. 1 : 4 front batter.
D. 1 : 5 front batter.
Answer = 1 : 3 front batter

334. The ability of a driver to stop the vehicle moving with the designed speed, depends upon:.
A. perception time.
B. brake reaction time.
C. efficiency of the brakes.
D. All the above..

335. To prevent compressive stresses in a rigid concrete pavement, the joint prvoided, is.
A. expansion joint.
B. contraction joint.
C. hinged joint.
D. all the above..

336. In case of cement concrete pavements, pick up the incorrect statement.
A. tractive resistance is low.
B. initial cost of construction is high.
C. initial cost of construction is low.
D. visibility during nights is high.
Answer = initial cost of construction is low

337. The radius of curvature provided along a transition curve, is.
A. minimum at the beginning.
B. same throughout its length.
C. equal to the radius of circular curve.
D. varying from infinity to the radius of circular curve..

338. During last phase of the reconnaissance, details of the grade line is recorded on 2 metre poles to indicate.
A. direction of the proposed alignment.
B. distance between the previous and forward pegs.
C. relative elevations of pegs.
D. all the above..

339. Concrete pavement is provided if daily traffic per lane exceeds.
A. 500 tonnes.
B. 750 tonnes.
C. 1000 tonnes.
D. 1250 tonnes.

340. If d is the economic designed depth of a slab, the thickness of the cement concrete pavement slab at interior, is kept.
A. 1.275 d.
B. 1.125 d.
C. 0.85 d.
D. 0.75 d.

341. If the elevations along a road increase, the slope of the road along the longitudinal direction, is known as.

342. Pick up the incorrect statement from the following:.
A. Highways are always constructed in straight line.
B. Highways may be provided horizontal curves.
C. Highways may be provided vertical curves.
D. Highways may be provided both horizontal and vertical curves..
Answer = Highways are always constructed in straight line

343. If the width of carriage way is 12.5 metres, outer edge 50 cm higher than the inner edge, the required super elevation is.
A. 50 cm.
B. 1 in 25.
C. 1 in 400.
D. 1 in 40.

344. In cement concrete pavements, tensile stress is due to :.
A. bending or deflection under wheel loads.
B. difference in temperature of the top and bottom of pavement.
C. contraction of slab during falling temperature.
D. all the above..

345. If L is the length of the transition curves provided on either side of a circular curve of radius R, the maximum angle of deflection with tangent for the junctions of the transition curve and circular curve, is.
A. L/R.
B. L/2R.
C. L/3R.
D. None of these..

346. Interior thickness of concrete road slab for design wheel load 6300 kg and permissible flexural stress 21 kg/cm2, is.
A. 17.0 cm.
B. 25.5 cm.
C. 34.0 cm.
D. 42.5 cm.

347. Super-elevation on roads in snow bound areas, should generally not exceed.
A. 0.15.
B. 0.12.
C. 0.1.
D. 0.07.

348. If the width of a pavement slab is 7.5 m, thickness 20 cm and working stress 1400 kg/cm2, spacing of 10 mm tie bars for the longitudinal joint, is.
A. 10 cm.
B. 20 cm.
C. 30 cm.
D. 40 cm.

349. Minimum number of 50 kg cement bags per cubic metre of concrete for a mix corresponding to crushing strength 280 kg/cm2 at 28 days, are.
A. 5.0.
B. 6.5.
C. 7.0.
D. 7.5.

350. Three points, A, B and C 500 m apart on a straight road have 500 m, 505 m and 510 m as their reduced levels. The road is said to have.
A. no gradient between A and C.
B. a positive gradient between A and C.
C. a negative gradient between A and C.
D. a positive gradient between A and B followed by a negative gradient between B to C..
Answer = a positive gradient between A and B followed by a negative gradient between B to C.

351. In a braking test, a vehicle travelling at 36 km ph was stopped at a braking distance of 8.0 m. The average value of the vehicle's skid resistance (friction coefficient) is.
A. 0.64.
B. 6.25.
C. 0.16.
D. none of these.

352. If present A.D.T. is 5000 vehicles and annual increase is 10%, the average future flow after 5 years will be.
A. 6050 vehicles.
B. 7050 vehicles.
C. 8050 vehicles.
D. 9050 vehicles.

353. To prevent a head-on-collision of vehicles travelling in opposite directions along four-lane roads.
A. markings on the road are provided.
B. physical dividers are provided.
C. area dividers are provided.
D. medians of wide area are provided.
Answer = medians of wide area are provided

354. Pick up the correct statement from the following:.
A. Detailed survey is carried out for a strip of land about 15 m on either side of the trace cut along straight portions.
B. Detailed survey is carried out for a strip of land about 30 m at sharp curves.
C. Levels are taken along the trace cut at an interval of 20 m.
D. All the above..

355. The G.T. road from Lahore to Calcutta in undivided India, was constructed during.
A. 3495-3500 BC.
B. 265-270 BC.
D. 1440-1450.

356. Indian Road Congress (I.R.C.) was founded and constituted with its head quarters at New Delhi, in.
A. 1924.0.
B. 1927.0.
C. 1930.0.
D. 1934.0.

357. Extra widening required at a horizontal curve on a single lane hill road of radius 80 m for a design speed of 50 km ph and for a vehicle with wheel base 6.0 m is.
A. 0.225 m.
B. 0.589 m.
C. 1.250 m.
D. none of these.

358. The normal road land width for a National or State highway, in open areas should be.
A. 45 m.
B. 30 m.
C. 24 m.
D. 20 m.

359. Excessive camber on pavements may cause.
A. deterioration of central portion.
B. slip of the speedy vehicles towards the edges.
C. erosion of the berms.
D. all the above..

360. The type of curves generally provided on highways, is.
A. critical curve.
B. transition curve.
C. vertical curve.
D. all the above..

361. Non-passing sight distance along a road is the longest distance at which the driver of a moving vehicle, may see an obstacle on the pavement.
A. 10 cm high.
B. 25 cm high.
C. 50 cm high.
D. 100 cm high.

362. The minimum road width is taken.
A. 9 m.
B. 12 m.
C. 16 m.
D. 20 m.

363. If cross slope of a country is upto 10% the terain is classified as.
A. plain.
B. rolling.
C. mountainous.
D. steep..

364. When each particle of aggregates is thinly coated with cement paste, a heterogeneous solid is formed, which is known as.
A. hydration.
B. gel.
C. concrete.
D. none of these..

365. Gradient resistance of moving vehicles along down slopes, is.
A. + 7 kg/tonne.
B. + 9 kg/tonne.
C. - 9 kg/tonne.
D. - 7 kg/tonne.

366. Thickness of broken centre line markings for a four lane road, is generally kept.
A. 10 cm.
B. 12 cm.
C. 15 cm.
D. 18 cm.

367. Maximum number of vehicles that can pass a given point on a lane during one hour without creating unreasonable delay, is known as.
A. traffic density of lane.
B. basic capacity of lane.
C. probable capacity of lane.
D. practical capacity of lane..
Answer = practical capacity of lane.

368. The desirable camber for straight roads with water bound macadam or gravel surface, is.
A. 1 in 33 to 1 in 25.
B. 1 in 40 to 1 in 33.
C. 1 in 150 to 1 in 140.
D. 1 in 160 to 1 in 140.
Answer = 1 in 40 to 1 in 33

369. In case of a hair pin bend of a highway,.
A. minimum radius of inner curve is 14 m.
B. minimum radius of transition is 15 m.
C. circular compound curve may be provided.
D. All the above..

370. Before providing super-elevation on roads, the portion of the carriageway between the crown and the outer edge is made.
A. to have a reduced fall.
B. horizontal.
C. to have slope of the camber on the other half of the carriageway.
D. none of these..
Answer = to have slope of the camber on the other half of the carriageway

371. Customers prefer parking of their vehicles at.
A. 90° to aisles.
B. 85° to aisles.
C. 80° to aisles.
D. 75° to aisles.

A. 1 in 10, is 10%.
B. 1 in 15, is 15%.
C. 1 in 20, is 10%.
D. 1 in 25, is 25%.
Answer = 1 in 20, is 10%

373. Over taking time required for a vehicle with design speed 50 km ph and overtaking acceleration 1.25 m/sec2 to overtake a vehicle moving at a speed 30 km ph, is.
A. 5.0 secs.
B. 6.12 secs.
C. 225.48 secs.
D. 30 secs.

374. The maximum comfortable retardation applied to moving vehicles, is.
A. 3.42 m/sec^2.
B. 4.42 m/sec^2.
C. 5.56 m/sec^2.
D. 7.80 m/sec^2.

375. The width of pavement in addition to a gravelled berm 1 m on either side for a two directional traffic recommended by Nagpur Conference of Chief Engineers, is.
A. 4.7 m.
B. 5.7 m.
C. 6.7 m.
D. 7.7 m.

376. Pick up the correct statement from the following:.
A. The corss fall of the shoulder should be at least 0.5% steeper than camber.
B. On superelevated sections, the shoulders should be provided a cross fall equal to camber.
C. Earthern roads in general are provided steepest crossfall.
D. All the above..

377. The camber on pavements, is provided by.
A. straight line method.
B. parabolic method.
C. straight line and parabolic at crown.
D. elliptical method.
Answer = straight line and parabolic at crown

378. The maximum radial distance of a Lemniscate curve, having maximum polar angle a, is.
A. 3 R sin α.
B. 3 R sin^2α.
C. 3 R sin 2α.
D. 3 R sin α/2.
Answer = 3 R sin 2α

379. According to Indian Road Congress, the width of carriageway, is.
A. 3.75 m for single lane.
B. 7.0 m for two lanes without raised kerbs.
C. 7.5 m for two lanes with raised kerbs.
D. All the above.

380. The minimum cross fall of shoulders is kept.
A. 0.005.
B. 0.01.
C. 0.015.
D. 0.03.

381. While calculating the overtaking sight distance, the height of the object above road surface, is assumed.
A. Zero.
B. 50 cm.
C. 75 cm.
D. 120 cm.

382. Set-back distance is the distance between.
A. road land boundary and building line.
B. road land boundary and control line.
C. building line and control line.
D. road land boundary and control line..

383. Horizontal curves on highways are provided.
A. to break the monotony of driving.
B. to discourage the tendency to increase speed.
C. to decrease the mental strain on drivers.
D. all the above..

384. The width of the right of way, is influenced by.
A. formation width.
B. shoulders or berms.
D. All the above..

385. On the recommendations of Nagpur Conference, the minimum width of a village road may be.
A. 2.45 m.
B. 2.75 m.
C. 3.66 m.
D. 4.90 m.

386. In retaining and breast walls, weep holes are provided at.
A. 50 cm vertical height and 50 cm centre to centre horizontally.
B. 100 cm vertical height and 100 cm centre to centre horizontally.
C. 100 cm vertical height and 120 cm centre to centre horizontally.
D. 120 cm vertical height and 100 cm centre to centre horizontally..
Answer = 100 cm vertical height and 120 cm centre to centre horizontally

387. In complex situations, total time required for a driver to form a judgement and to act, may be taken as.
A. 1.0 sec.
B. 1.5 sec.
C. 2.0 sec.
D. 3.0 sec.

388. At intersection of roads, the traffic volume study is carried out to ascertain the number of vehicles.
A. moving along straights.
B. turning left.
C. turning right.
D. all the above..

389. Widening of the roads on curves in hilly region, is done.
A. on the outer side.
B. on the inner side.
C. on the outer and inner sides equally.
D. less on outer side and more on inner side..
Answer = on the inner side

390. For a properly designed vehicle, the resistance generally ignored, is.
A. wind resistance.
B. rolling resistance.
D. axle resistance.

391. The top height of a route marker above crown level is.
A. 1.50 m.
B. 1.75 m.
C. 2.00 m.
D. 2.25 m.

392. Pick up the correct statement from the following:.
A. Borrow pits are located out side the right of way.
B. Borrow pits may be located on either side of the right of way.
C. Spoil bank is located on one side of the right of way.
D. All the above..

393. When load is applied on concrete pavement.
A. away from edges, the maximum bending moment is negative.
B. away from edges, the maximum bending moment cause compression.
C. on the edges, the maximum stress is parallel to the edge of the slab.
D. none of these..
Answer = on the edges, the maximum stress is parallel to the edge of the slab

394. Pick up the incorrect statement from the following. On highways circular curves may be.
A. simple curves.
B. compound curves.
C. reverse curves.
D. vertical curves.

395. An ideal vertical curve is.
A. true spiral.
B. cubic spiral.
C. cubic parabala.
D. None of these..

396. At a road junction, 16 cross conflict points are severe, if.
D. none of these..

397. To ensure that bullock carts may not overturn on curves, the maximum value of super-elevation, recommended by I.R.C., is.
A. 1 in 10.
B. 1 in 12.
C. 1 in 15.
D. 1 in 20.

398. Pick up the correct statement from the following:.
A. Various geometric design features and generally guided by ruling design speed.
B. The design speed for a given highway should preferably be uniform.
C. Abrupt change in the design speed should not be permitted.
D. all the above..

399. The ratio of maximum deviation angle and maximum polar deflection angle of a Lemniscate curve, is.
A. 2.0.
B. 3.0.
C. 4.0.
D. 5.0.

400. If brakes of vehicles are effective, the vehicle-running at 30 km/hour comes to a stop in.
A. 10 metres.
B. 12 metres.
C. 15 metres.
D. 18 metres.

401. Full amount of extra width of a pavement on the curve, is provided at.
A. beginning of the transition curve.
B. centre of the transition curve.
C. beginning of the circular curve.
D. centre of the circular curve..
Answer = beginning of the circular curve

402. Roadway width for a National highways and State highways (two-lanes) is.
A. 12 m.
B. 9 m.
C. 9.5 m.
D. 15 m.

403. The distance travelled by revolving the wheel of a vehicle more than its circumferential movement, is known as.
A. slip.
B. skid.
C. neither (a) nor (b).
D. both (a) and (b).

404. If the difference in elevation of an edge of the pavement 9 m wide and its crown is 15 cm, the camber of the pavement, is.
A. 1 in 60.
B. 1 in 45.
C. 1 in 30.
D. 1 in 15.

405. If degree of a road curve is defined by assuming the standard length of an arc as 30 metres, the radius of 1° curve is equal.
A. 1719 m.
B. 1146 m.
C. 1046 m.
D. 1619 m.

406. The minimum superelevation in rolling terrain in plains, is limited to.
A. 0.04.
B. 0.05.
C. 0.06.
D. 0.07.

407. Traffic census is carried out for.
A. speed and delay study.
C. traffic volume study.
D. All the above..

408. In a right angle bend of a road provided with a transition throughout, the maximum polar angle will be.
A. 10°.
B. 15°.
C. 20°.
D. 30°.

409. Minimum radius of curvature of National Highways or State highways in hill region free from snow, is kept.
A. 60 m.
B. 50 m.
C. 33 m.
D. 30 m.

410. The best compromise between the increase of the length of a highway and reduction in its load carrying capacity, is the ruling gradient.
A. 1 in 10.
B. 1 in 15.
C. 1 in 20.
D. 1 in 25.

411. The length of a transition curve, is governed by.
A. rate of change of radial acceleration.
B. rate of change of super-elevation.
C. both (a) and (b).
D. neither (a) nor (b).
Answer = both (a) and (b)

412. Along horizontal curves, if centrifugal force exceeds lateral friction, vehicles may.
A. skid.
B. slip.
C. not be affected.
D. none of these..

413. A subsidiary area in a carriageway placed so as to control the movement of the traffic, is.
A. median strip.
B. island.
C. flower bed.
D. refuge..

414. Pick up the incorrect statement from the following. If water cement ratio is.
A. increased, strength of concrete increases.
B. decreased, strength of concrete increases.
C. increased, strength of concrete is not affected.
D. none of these..
Answer = increased, strength of concrete is not affected

415. Ruling gradient on hill roads 300 m above M.S.L. is kept.
A. 0.04.
B. 0.05.
C. 0.06.
D. 0.07.