### Civil Engineering - Highway Engineering MCQs Part 6

1. 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

2. 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
E.
20 cm

3. 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.

4. 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
E.
none of these.

5. 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.
minimum road way width at apex for single lane highway, is 9 m
E.
All the above.

6. 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.

7. Customers prefer parking of their vehicles at

A. 90° to aisles
B. 85° to aisles
C. 80° to aisles
D. 75° to aisles
E. 60° 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%
E. none of these.

9. 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

10. The maximum comfortable retardation applied to moving vehicles, is

A. 3.42 m/sec2
B. 4.42 m/sec2
C. 5.56 m/sec2
D. 7.80 m/sec2
E. 10 m/sec2

11. 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
E. 8.7 m

12. 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.

13. The camber on pavements, is provided by

A. straight line method
B. parabolic method
C. straight line and parabolic at crown
D. elliptical method
E. circular method.

14. The standard equation of a cubic parabolic transition curve provided on roads, is

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

15. The maximum radial distance of a Lemniscate curve, having maximum polar angle a, is

A. 3 R sin Î±
B. 3 R sin2Î±
C. 3 R sin 2Î±
D. 3 R sin Î±/2
E. none of these.

16. 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. 10.5 m for three lanes pavements
E. All the above

17. The minimum cross fall of shoulders is kept

A. 0.5%
B. 1.0%
C. 1.5%
D. 2.5%
E. 3%

18. 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. 100 cm
E. 120 cm

19. 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.

20. 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.

21. The width of the right of way, is influenced by

A. formation width
B. shoulders or berms
D. availability of funds
E. all the above.

22. 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
E. 5.00 m

23. 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.

24. 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. 2.5 sec
E. 3.0 sec

25. 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.

26. 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.

27. For a properly designed vehicle, the resistance generally ignored, is

A. wind resistance
B. rolling resistance
D. axle resistance
E. none of these.

28. 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

29. 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.

30. If E is the modulus of elasticity of the concrete in kg/cm2, d is the slab thickness in cm, is the Poisson's ratio for the concrete, k is the sub-grade modulus kg/cm3, the radius r of relative stiffness in cm,

A.
B.
C.
D.

31. 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.

32. 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
E. all the above.

33. An ideal vertical curve is

A. true spiral
B. cubic spiral
C. cubic parabala
D. lamniscate
E. none of these.

34. At a road junction, 16 cross conflict points are severe, if

D. none of these.

35. 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
E. 1 in 25

36. If V is speed of a moving vehicle, r is radius of the curve, g is the acceleration due to gravity, W is the width of the carriageway, the super elevation is

A.
B.
C.
D.
E.

37. 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.

38. The ratio of maximum deviation angle and maximum polar deflection angle of a Lemniscate curve, is

A. 2
B. 3
C. 4
D. 5
E. 6

39. 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

40. 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.

41. 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

42. 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)

43. 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
E. 1 in 7.5

44. 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
E. 1573 m

45. For calculating the tractive force along an upgrade of an asphalt road, the most probable value of the co-efficient of traction resistance Î¼ is assumed

A.
B.
C.
D.
E.

46. The minimum superelevation in rolling terrain in plains, is limited to

A. 4%
B. 5%
C. 6%
D. 7%
E. 10%

47. Traffic census is carried out for

A. speed and delay study
C. traffic volume study
D. origin and destination study
E. all the above.

48. 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°
E. 45°

49. 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
E. 25 m

50. 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
E. l in 30