highway engineering Mcqs
1. Desire lines are plotted in_________________?
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A. traffic volume studies

B. origin and destination studies

C. accident studies

D. speed studies

2. The camber of road should be approximately equal to___________________?
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A. two times the longitudinal gradient

B. three times the longitudinal gradient

C. longitudinal gradient

D. half the longitudinal gradient
3. The minimum design speed for hairpin bends in hill roads is taken as_______________?
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A. 50 kmph

B. 40 kmph

C. 20 kmph

D. 30 kmph

4. RC-2, MC-2 and SC-2 correspond to_______________?
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A. viscosity in increasing order from RC-2 to SC-2

B. same viscosity

C. none of the above

D. viscosity in decreasing order from RC-2 to SC-2

5. The shape of the camber, best suited for cement concrete pavements, is_______________?
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A. combination of straight and parabolic

B. elliptical

C. parabolic

D. straight line
6. The ruling design speed on a National Highway in plain terrain as per IRC recommendations is_____________?
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A. 60 kmph

B. 80 kmph

C. 120 kmph

D. 100 kmph
7. The diagram which shows all important physical conditions of an accident location like roadway limits, bridges, trees and all details of roadway conditions is known as_____________?
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A. spot maps

B. collision diagram

C. pie chart

D. condition diagram
8. On a single lane road with two way traffic, the minimum stopping sight distance is equal to______________?
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A. two times the stopping distance

B. half the stopping distance

C. three times the stopping distance

D. stopping distance

9. Select the incorrect statement?
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A. Stop or red time of a signal is the sum of go and clearance intervals for the cross flow

B. Go or green time of a signal is the sum of stop and clearance intervals for the cross flow

C. The cycle length is normally 40 to 60 seconds for two phase signals

D. Clearance time is generally 3 to 5 seconds

10. Percentage of free carbon in bitumen is______________?
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A. none of the above

B. more than that in tar

C. equal to that in tar

D. less than that in tar
11. A traffic rotary is justified where______________?
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A. when traffic volume is more than 5000 vehicles per hour

B. space is limited and costly

C. number of intersecting roads is between 4 and 7

D. when traffic volume is less than 500 vehicles per hour

12. Group index method of design of flexible pavement is_______________?
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A. a semi empirical method

B. an empirical method based on physical properties of subgrade soil

C. an empirical method based on strength characteristics of subgrade soil

D. a theoretical method

13. Compared to a level surface, on a descending gradient the stopping sight distance is_______________?
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A. less

B. more

C. dependent on the speed

D. same

14. The background colour of the informatory sign board is______________?
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A. yellow

B. red

C. green

D. white

15. Which of the following tests measures the toughness of road aggregates ?
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A. shape test

B. crushing strength test

C. abrasion test

D. impact test
16. Rigidity factor for a tyre pressure greater than 7 kg/cm2 is_______________?
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A. equal to 1

B. zero

C. greater than 1

D. less than 1
17. The direct interchange ramp involves____________?
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A. diverging to the left side and merging from right

B. diverging to the right side and merging from left

C. diverging to the right side and merging from right

D. diverging to the left side and merging from left

18. The entrance and exit curves of a rotary have_______________?
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A. different radii and different widths of pavement

B. equal radii but pavement width is more at entrance than at exit curve

C. equal pavement widths but radius is more at entrance curve than at exit curve

D. equal radii and equal widths of pavement

19. The maximum allowable Los Angeles abrasion value for high quality surface course is_______________?
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A. 30%

B. 20%

C. 45%

D. 10%

20. The aggregates required for one kilometer length of water bound macadam road per meter width and for 10 mm thickness is________________?
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A. 10 cubic meter

B. 15 cubic meter

C. 12 cubic meter

D. 8 cubic meter

21. Camber in the road is provided for_______________?
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A. having proper sight distance

B. counteracting the centrifugal force

C. effective drainage

D. none of the above

22. With increase in speed of the traffic stream, the maximum capacity of the lane________________?
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A. decreases

B. first decreases and then increases after reaching a minimum value at optimum speed

C. increases

D. first increases and then decreases after reaching a maximum value at optimum speed
23. The absolute minimum radius of curve for safe operation for a speed of 110 kmph is______________?
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A. 220 m

B. 110 m

C. 440 m

D. 577 m

24. Centre line markings are used_____________?
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A. in roadways meant for two way traffic

B. to indicate that overtaking is not permitted

C. to designate proper lateral placement of vehicles before turning to different directions

D. to designate traffic lanes

25. Equivalent factor of passenger car unit (PCU) for a passenger car as per IRC is_____________?
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A. 0.5

B. 1.0

C. 10

D. 2

26. Which of the following is known as design capacity ?
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A. possible capacity

B. basic capacity

C. theoretical capacity

D. practical capacity

27. The critical combination of stresses for corner region in cement concrete roads is____________?
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A. load stress + warping stress + frictional stress

B. load stress + warping stress frictional stress

C. load stress + frictional stress

D. load stress + warping stress
28. When two equally important roads cross roughly at right angles, the suitable shape of central island is________________?
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A. tangent

B. elliptical

C. circular

D. turbine

29. If the stopping distance and average length of a vehicle are 18 m and 6 m respectively, then the theoretical maximum capacity of a traffic lane at a speed of 10 m/sec is________________?
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A. 2000 vehicles per hour

B. 2500 vehicles per hour

C. 3000 vehicles per hour

D. 1500 vehicles per hour
30. For highway geometric design purposes the speed used is________________?
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A. 15th percentile

B. 50 percentile

C. 98 percentile

D. 85th percentile

31. The sequence of four stages of survey in a highway alignment is______________?
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A. map study, preliminary survey, reconnaissance and detailed survey

B. map study, reconnaissance, preliminary survey and detailed survey

C. reconnaissance, map study, preliminary survey and detailed survey

D. preliminary survey, map study, reconnaissance and detailed survey

32. As per IRC recommendations, the average level of illumination on important roads carrying fast traffic is______________?
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A. 20 lux

B. 30 lux

C. 15 lux

D. 10 lux

33. In case of hill roads, the extra widening is generally provided______________?
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A. fully on the inner side of the curve

B. fully on the outer side of the curve

C. one-fourth on inner side and three-fourth on outer side of the curve

D. equally on inner and outer sides of the curve

34. Select the correct statement_________________?
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A. Psychological extra widening depends on the number of traffic lanes.

B. Psychological extra widening depends on the length of wheel base.

C. Psychological extra widening depends on the speed of vehicle

D. Mechanical extra widening depends on the speed of vehicle.

35. The maximum spacing of contraction joints in rigid pavements is_____________?
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A. 3.5 m

B. 4.5 m

C. 5.5m

D. 2.5 m

36. The recommended grade of tar for grouting purpose is_______________?
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A. RT.3

B. RT-2

C. RT-5

D. RT-1

37. In the penetration macadam construction, the bitumen is__________________?
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A. sprayed before the aggregates are spread and compacted

B. sprayed after the aggregates are spread and compacted

C. premixed with aggregates and then spread

D. none of the above

38. Penetration test on bitumen is used for determining its_____________?
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A. grade

B. temperature susceptibility

C. ductility

D. viscosity

39. The binder normally used in flexible pavement construction is________________?
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A. cement

B. none of the above

C. bitumen

D. lime

40. The maximum design gradient for vertical profile of a road is______________?
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A. ruling gradient

B. minimum gradient

C. exceptional gradient

D. limiting gradient

41. The percentage compensation in gradient for ruling gradient of 4% and horizontal curve of radius 760 m is____________________?
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A. no compensation

B. 10%

C. 1%

D. 0.10%

42. In case of summit curves, the deviation angle will be maximum when_______________?
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A. an ascending gradient meets with a level surface

B. an ascending gradient meets with a descending gradient

C. an ascending gradient meets with another ascending gradient

D. a descending gradient meets with another descending gradient

43. The method of design of flexible pavement as recommended by IRC is____________?
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A. Benkelman beam method

B. group index method

C. CBR method

D. Westergaard method

44. If ruling gradient is I in 20 and there is also a horizontal curve of radius 76 m, then the compensated grade should be_________________?
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A. 6%

B. 4%

C. 3%

D. 5%

45. Highway facilities are designed for_________________?
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A. annual average daily traffic

B. annual average hourly volume

C. peak hourly volume of the year

D. thirtieth highest hourly volume
46. Flexible pavement distribute the wheel load_____________?
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A. none of the above

B. through a set of layers to the subgrade

C. directly to subgrade

D. through structural action

47. If an ascending gradient of 1 in 50 meets a descending gradient of 1 in 50, the length of summit curve for a stopping sight distance of 80 m will be_______________?
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A. 60m

B. 64m

C. 80m

D. zero

48. Enoscope is used to find______________?
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A. time-mean speed

B. space-mean speed

C. spot speed

D. average speed

49. On a horizontal curve if the pavement is kept horizontal across the alignment, then the pressure on the outer wheels will be_________________?
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A. more than the pressure on inner wheels

B. equal to the pressure on inner wheels

C. less than the pressure on inner wheels

50. In soils having same values of plasticity index, if liquid limit is increased, then_____________?
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A. compressibility and permeability increase and dry strength decreases

B. compressibility and permeability decrease and dry strength increases

C. compressibility, permeability and dry strength decrease

D. compressibility, permeability and dry strength increase