Civil Engineering Test on Highway Engineering - Set 21 - ObjectiveBooks

# Practice Test: Question Set - 21

1. 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

2. An ideal vertical curve is
(A) True spiral
(B) Cubic spiral
(C) Cubic parabola
(D) None of these

3. 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) 1/10
(B) 1/20
(C) 1/30
(D) 1/100

4. If the ruling gradient on any highway is 3%, the gradient provided on the curve of 300 metre radius, is
(A) 2.00 %
(B) 2.25 %
(C) 2.50 %
(D) 2.75 %

5. If P is the number of vehicles per day at last census, r is the increase in traffic and n is the number of years passed after last census, number of vehicles A per day for design, is
(A) P (1 + r)n
(B) P (1 - r)n
(C) P (1 + r)-n+5
(D) P (1 + r)5n

6. The period of long term plan for the development of roads in India, known as Bombay Plan (Aug. 1958), is
(A) 5 years
(B) 10 years
(C) 15 years
(D) 20 years

7. California Bearing Ratio method of designing flexible pavements is more accurate as it involves
(A) Characteristics of soils
(B) Traffic intensities
(C) Character of the road making materials
(D) None of these

8. The absolute minimum radius of horizontal curve for a design speed 60 km ph is
(A) 131 m
(B) 210 m
(C) 360 m
(D) None of these

9. If V is the design speed of vehicles in km/hour, the change of radial acceleration in meters/sec3, is
(A) 65/(70 + V)
(B) 60/(70 + V)
(C) 70/(65+ V)
(D) 70/(60 + V)

10. If the number of lanes on the carriageway of a road is more than two, the total width of lane ways is equal to 3.0 m
(A) + 0.60 m
(B) + 0.70 m
(C) + 0.90 m
(D) + 1.50 m

11. The convexity provided to the carriageway between the crown and edge of the pavement, is known as
(A) Super-elevation
(B) Camber
(C) Height of the pavement
(D) None of these

12. If N is the algebraic difference of grades, S is the minimum sight distance in metres, the length (L) of a summit curve is
(A) NS/4
(B) NS2/4
(C) N2S/4
(D) (NS)2/4

13. If the elevations along a road increase, the slope of the road along the longitudinal direction, is known as

14. Cement grouted pavement is classified as
(A) Rigid pavement
(B) Semi-rigid pavement
(C) Flexible pavement
(D) None of these

15. Non-passing sight distance along a road is the longest distance at which the driver of a moving vehicle, may see an obstacle on the pavement
(A) 10 cm high
(B) 25 cm high
(C) 50 cm high
(D) 100 cm high