### Civil Engineering - Highway Engineering MCQs Part 3

1. 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.

2. 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.

3. Floating gradients are generally provided

A.
B.
C.
at summit curves
D.
at valley curves
E.
every where.

4. 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.

5. Width of the shoulders of carriage way is generally kept

A.
100 cm
B.
125 cm
C.
150 cm
D.
200 cm
E.
250 cm

6. The correct formula for calculating superelevation for the hill roads, is

A.
B.
C.
D.

7. The inventor of road making as a building science, was

A. Sully
B. Tresguet
C. Telford

8. An upgrade g1% is followed by a downgrade g2%. The equation of the parabolic curve of length L to be introduced, is given by

A.
B.
C.
D.

9. 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

10. 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. permissible maximum super-elevation
E. all the above.

11. 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.

12. Enoscope is used to determine

A. spot speed
B. average speed
C. travel time
D. none of these.

13. 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.

14. If L is the length of vehicles in metres, C is the clear distance between two consecutive vehicles (stopping sight distance), V is the speed of vehicles in km/hour, the maximum number N of vehicles/hour, is

A.
B.
C.
D.
E.

15. 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
E. 4.5 m

16. 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.

17. Reconnaissance is best done with the help of

A. aerial photographic survey
B. condastral surveys
C. topographical surveys
D. triangulation surveys
E. none of these.

18. The usual width of side drains along Highways in hilly region, is

A. 50 cm
B. 60 cm
C. 70 cm
D. 80 cm
E. 100 cm

19. 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
E. 8 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.

21. Minimum thickness of the base of a flexible pavement, is

A. 10 cm
B. 15 cm
C. 20 cm
D. 25 cm
E. 30 cm.

22. 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. reduce the number of accidents
E. all the above.

23. 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)
E. none of these.

24. 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.

25. Newly constructed pavement with ordinary Portland cement attains its working strength after

A. 7 days
B. 14 days
C. 21 days
D. 28 days
E. 42 days

26. 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.
E. None of these.

27. 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.

28. 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
E. 72.44 km/hour

29. The maximum distance of the apex of a vertical curve of length L from the point of intersection of two grades + g1%, and - g2% (g1 > g2), is

A.
B.
C.
D.

30. 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.

31. 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

32. If the rate of change of grade permitted along a vertical curve is r and total change of grade is g%, the length L of the curve to be provided, is

A.
B.
C.
D.
E. none of these.

33. 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.

34. The pavement width of a road depends upon

A. terrain
B. type of traffic
C. number of lanes
D. all the above.

35. 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
E. 3.0 sec

36. 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
E. none of these.

37. 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
E. 200 m

38. 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.

39. If cross slope of a country is greater than 60%, the terrain is classified as

A. rolling
B. mountainous
C. steep
D. plain.

40. 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.

41. 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.

42. 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. 50 m to 75 m
E. 100 m to 150

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

44. The traffic carrying capacity of a single lane, depends on

A. type of the vehicles
B. level crossings
D. surface texture
E. all the above.

45. 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.

46. Bottom-most component of a flexible pavement, is

B. sub-base
C. base
D. base course.

47. If V is the design speed in km/hour and R is the radius of the curve of a hill road, the super-elevation

A.
B.
C.
D.

48. 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. lean concrete base
E. all the above.

49. In ideal pavement is constructed with

A. bricks
B. hard soil
C. Portland cement concrete
D. tar
E. none of these.