highway engineering Mcqs
101. If b is the wheel track of a vehicle and h is the height of centre of gravity above road surface, then to avoid overturning and lateral skidding on a horizontal curve, the centrifugal ratio should always be________________?
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A. less than b/2h and also less than co-efficient of lateral friction

B. greater than b/2h and less than co-efficient of lateral friction

C. greater than b/2h and also greater than coefficient of lateral friction

D. less than b/2h and greater than co-efficient of lateral friction

102. The suitable surfacing material for a bridge deck slab is________________?
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A. mastic asphalt

B. bituminous carpet

C. sheet asphalt

D. rolled asphalt

103. The camber for hill roads in case of bituminous surfacing is adopted as________________?
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A. 3%

B. 4%

C. 2%

D. 2.5%
104. When the bituminous surfacing is done on already existing black top road or over existing cement concrete road, the type of treatment to be given is________________?
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A. spray of emulsion

B. seal coat

C. tack coat

D. prime coat

105. The function of an expansion joint in rigid pavements is to______________?
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A. relieve warping stresses

B. allow free expansion

C. relieve shrinkage stresses

D. resist stresses due to expansion

106. Coefficient of friction is less when the pavement surface is________________?
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A. smooth and dry

B. dry

C. smooth and wet

D. rough

107. Softening point of bitumen to be used for read construction at a place where maximum temperature is 40 C should be______________?
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A. equal to 40C

B. none of the above

C. greater than 40C

D. less-than 40C

108. The stopping sight distance depends upon_______________?
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A. all of the above

B. total reaction time of driver

C. speed of vehicle

D. efficiency of brakes

109. The effect of grade on safe overtaking sight distance is_______________?
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A. to increase it on descending grades and to decrease it on ascending grades

B. to decrease it on descending grades and to increase it on ascending grades

C. to increase it on both descending and ascending grades

D. to decrease it on both descending and ascending grades

110. The provision of traffic signals at intersections______________?
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A. reduces rear end collisions but may increase right angled collisions

B. reduces right angled and rear end collisions

C. reduces right angled collisions but may increase rear end collisions

D. increases right angled and rear end collisions

111. Select the correct statement__________________?
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A. 85th percentile speed is more than 98th percentile speed

B. Spot speed is the average speed of a vehicle at a specified section

C. Traffic capacity should always be more than traffic volume

D. Traffic volume should always be more than traffic capacity

112. The desirable length of overtaking zone as per IRC recommendation is equal to________________?
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A. two times the overtaking sight distance

B. overtaking sight distance

C. three times the overtaking sight distance

D. five times the overtaking sight distance
113. Dead Slow is a______________?
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A. informatory sign

B. warning sign

C. none of the above

D. regulatory sign
114. The camber of shoulders in water bound macadam roads is________________?
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A. greater than the cross slope of pavement

B. equal to the cross slope of pavement

C. zero

D. less than the cross slope of pavement

115. Length of a vehicle affects________________?
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A. clearance to be provided under structures such as overbridges, under-bridges etc

B. width of traffic lanes

C. width of shoulders and parking facilities

D. extra width of pavement and minimum turning radius
116. Select the correct statement______________?
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A. Minimum and maximum values of group index can be 0 and 20 respectively

B. all of the above

C. More the value of group index, less thickness of pavement will be required

D. More the value of CBR, greater thickness of pavement will be required

117. The particular places where pedestrians are to cross the pavement are properly marked by the pavement marking known as________________?
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A. crosswalk lines

B. lane lines

C. turn markings

D. stop lines

118. The attainment of super elevation by rotation of pavement about the inner edge of the pavement_______________?
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A. does not change the vertical alignment of road

B. is preferable in steep terrain

C. avoids the drainage problem in flat terrain

D. results in balancing the earthwork

119. Which of the following premix methods is used for base course ?
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A. bituminous carpet

B. sheet asphalt

C. mastic asphalt

D. bituminous bound macadam
120. When the path travelled along the road surface is more than the circumferential movement of the wheels due to rotation, then it results in______________?
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A. revolving

B. turning

C. slipping

D. skidding
121. For water bound macadam roads in localities of heavy rainfall, the recommended value of camber is_______________?
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A. 1 in 60

B. 1 in 48

C. 1 in 36

D. 1 in 30

122. Which of the following shapes is preferred in a valley curve ?
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A. spiral

B. simple parabola

C. cubic parabola

D. lemniscate

123. The maximum thickness of expansion joint in rigid pavements is______________?
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A. 25 mm

B. 0

C. 100 mm

D. 50 mm

124. The maximum limit of water absorption for aggregate suitable for road construction is____________?
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A. 0.6%

B. 1.00%

C. 0.40%

D. 0.80%

125. For a constant value of coefficient of lateral friction, the value of required super-elevation increases with_______________?
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A. increase in both speed and radius of curve

B. decrease in both speed and radius of curve

C. increase in speed and with decrease in radius of curve

D. decrease in speed and with increase in radius of curve
126. The most economical lighting layout which is suitable for narrow roads is_______________?
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A. staggered system

B. none of the above

C. single side lighting

D. central lighting system

127. In highway construction on super elevated curves, the rolling shall proceed from_________________?
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A. lower edge towards the upper edge

B. upper edge towards the lower edge

C. sides towards the centre

D. centre towards the sides

128. Stopping sight distance is always_______________?
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A. equal to overtaking sight distance

B. less than overtaking sight distance

C. none of the above

D. more than overtaking sight distance

129. For the design of super elevation for mixed traffic conditions, the speed is reduced by_____________?
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A. 75%

B. 25%

C. 20%

D. 15%