About Highway Engineering

Following are some of the multiple choice questions on the Highway Engineering with answers that will help the students in developing their knowledge.

Highway Engineering MCQ

1. If ruling gradient is I in 20 and there is also a horizontal curve of radius 76 m, then the compensated grade should be

  • 3 %
  • 4%
  • 5 %
  • 6%

2. The ruling design speed on a National Highway in plain terrain as per IRC recommendations is

  • 60 kmph
  • 80 kmph
  • 100 kmph
  • 120 kmph

3. The attainment of super elevation by rotation of pavement about the inner edge of the pavement

  • is preferable in steep terrain
  • results in balancing the earthwork
  • avoids the drainage problem in flat terrain
  • does not change the vertical alignment of road

4. 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

  • zero
  • 64m
  • 80m
  • 60m

5. Enoscope is used to find

  • average speed
  • spot speed
  • space-mean speed
  • time-mean speed

6. Which of the following is known as design capacity ?

  • basic capacity
  • theoretical capacity
  • possible capacity
  • practical capacity

7. The diagram which shows the approximate path of vehicles and pedestrians involved in accidents is known as

  • spot maps
  • pie charts
  • condition diagram
  • collision diagram

8. The function of an expansion joint in rigid pavements is to

  • Relieve warping stresses
  • Relieve shrinkage stresses
  • Resist stresses due to expansion
  • Allow free expansion

9. Camber in the road is provided for

  • effective drainage
  • counteracting the centrifugal force
  • having proper sight distance
  • none of the above

10. The transition curve used in the horizontal alignment of highways as per IRC recommendations is

  • spiral
  • lemniscate
  • cubic parabola
  • any of the above

11. The maximum limit of water absorption for aggregate suitable for road construction is

  • 0.4 %
  • 0.6 %
  • 0.8 %
  • 1.0 %

12. The critical combination of stresses for corner region in cement concrete roads is

  • Load stress + warping stress frictional stress
  • Load stress + warping stress + frictional stress
  • Load stress + warping stress
  • Load stress + frictional stress

13. The most suitable equipment for compacting clayey soils is a

  • smooth wheeled roller
  • pneumatic tyred roller
  • sheep foot roller
  • vibrator

14. Which of the following is considered to be the highest quality construction in the group of black top pavements?

  • Mastic asphalt
  • Sheet asphalt
  • Bituminous carpet
  • Bituminous concrete

15. When two equally important roads cross roughly at right angles, the suitable shape of central island is

  • circular
  • elliptical
  • tangent
  • turbine

16. Equivalent factor of passenger car unit (PCU) for a passenger car as per IRC is

  • 1.0
  • 2.0
  • 0.5
  • 10

17. RC-2, MC-2 and SC-2 correspond to

  • same viscosity
  • viscosity in increasing order from RC-2 to SC-2
  • viscosity in decreasing order from RC-2 to SC-2
  • none of the above

18. If the design speed is V kmph and deviation angle is N radians, then the total length of a valley curve in meters is given by the expression

  • 0.38 N V3/2
  • 0.38 (NV3)”2
  • 3.8 NV”2
  • 3.8 (NV3)”2

19. Desire lines are plotted in

  • traffic volume studies
  • speed studies
  • accident studies
  • origin and destination studies

20. In highway construction on super elevated curves, the rolling shall proceed from

  • sides towards the centre
  • centre towards the sides
  • lower edge towards the upper edge
  • upper edge towards the lower edge

21. Which of the following methods is preferred for collecting origin and destination data for a small area like a mass business center or a large intersection ?

  • road side interview method
  • license plate method
  • return postcard method
  • home interview method

22. As per IRC recommendations, the average level of illumination on important roads carrying fast traffic is

  • 10 lux
  • 15 lux
  • 20 lux
  • 30 lux

23. Which of the following premix methods is used for base course ?

  • bituminous carpet
  • mastic asphalt
  • sheet asphalt
  • bituminous bound macadam

24. The maximum design gradient for vertical profile of a road is

  • ruling gradient
  • limiting gradient
  • exceptional gradient
  • minimum gradient

25. The number of repetitions, which the pavement thickness designed for a given wheel load should be able to support during the life of pavement is

  • 1000
  • 10000
  • 100000
  • 1000000

26. The percentage compensation in gradient for ruling gradient of 4% and horizontal curve of radius 760 m is

  • 0.1 %
  • 1 %
  • 10%
  • no compensation

27. The shape of the camber, best suited for cement concrete pavements, is

  • straight line
  • parabolic
  • elliptical
  • combination of straight and parabolic

28. Percentage of free carbon in bitumen is

  • more than that in tar
  • less than that in tar
  • equal to that in tar
  • none of the above

29. On a horizontal curve if the pavement is kept horizontal across the alignment, then the pressure on the outer wheels will be

  • more than the pressure on inner wheels
  • less than the pressure on inner wheels
  • equal to the pressure on inner wheels
  • zero

30. In case of hill roads, the extra widening is generally provided

  • equally on inner and outer sides of the curve
  • fully on the inner side of the curve
  • fully on the outer side of the curve
  • one-fourth on inner side and three-fourth on outer side of the curve

31. Bottom most layer of pavement is known as

  • wearing course
  • base course
  • sub-base course
  • subgrade

32. If the average center to center spacing of vehicles is 20 meters, then the basic capacity of a traffic lane at a speed of 50 kmph is

  • 2500 vehicles per day
  • 2000 vehicles per hour
  • 2500 vehicles per hour
  • 1000 vehicles per hour

33. For the design of super elevation for mixed traffic conditions, the speed is reduced by

  • 15%
  • 20%
  • 25%
  • 75%

34. The absolute minimum radius of curve for safe operation for a speed of 110 kmph is

  • 110 m
  • 220 m
  • 440 m
  • 577 m

35. If the stopping distance and average length of a vehicle are 18 m and 6 m respectively, then the theoretical maxi¬mum capacity of a traffic lane at a speed of 10 m/sec is

  • 1500 vehicles per hour
  • 2000 vehicles per hour
  • 2500 vehicles per hour
  • 3000 vehicles per hour

36. The fundamental factor in the selection of pavement type is

  • climatic condition
  • type and intensity of traffic
  • subgrade soil and drainage conditions
  • availability of funds for the construction project

37. For rapid curing cutbacks, the oil used is

  • gasoline
  • kerosene oil
  • light diesel
  • heavy diesel

38. Reaction time of a driver

  • increases with increase in speed
  • decreases with increase in speed
  • is same for all speeds
  • none of the above

39. Rigidity factor for a tyre pressure greater than 7 kg/cm² is

  • equal to 1
  • less than 1
  • greater than 1
  • zero

40. The terrain may be classified as rolling terrain if the cross slope of land is

  • upto 10%
  • between 10% and 25%
  • between 25% and 60%
  • more than 60%

41. The most efficient traffic signal system is

  • simultaneous system
  • alternate system
  • flexible progressive system
  • simple progressive system

42. 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

  • less than b/2h and greater than co-efficient of lateral friction
  • less than b/2h and also less than co-efficient of lateral friction
  • greater than b/2h and less than co-efficient of lateral friction
  • greater than b/2h and also greater than coefficient of lateral friction

43. As per IRC recommendations, the maximum limit of super elevation for mixed traffic in plain terrain is

  • 1 in 15
  • 1 in 12.5
  • 1 in 10
  • equal to camber

44. Tie bars in cement concrete pavements are at

  • expansion joints
  • contraction joints
  • warping joints
  • longitudinal joints

45. “Dead Slow” is a

  • regulatory sign
  • warning sign
  • informatory sign
  • none of the above

46. The entrance and exit curves of a rotary have

  • equal radii and equal widths of pavement
  • equal radii but pavement width is more at entrance than at exit curve
  • equal pavement widths but radius is more at entrance curve than at exit curve
  • different radii and different widths of pavement

47. The ductility value of bitumen for suitability in road construction should not be less than

  • 30 cm
  • 40 cm
  • 50 cm
  • 60 cm

48. The particular places where pedestrians are to cross the pavement are properly marked by the pavement marking known as

  • stop lines
  • turn markings
  • crosswalk lines
  • lane lines

49. The camber of shoulders in water bound macadam roads is

  • equal to the cross slope of pavement
  • less than the cross slope of pavement
  • greater than the cross slope of pavement
  • zero

50. If aggregate impact value is 20 to 30 percent, then it is classified as

  • exceptionally strong
  • strong
  • satisfactory for road surfacing
  • unsuitable for road surfacing

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