8 HIGHWAY ENGINEERING INTRODUCTION DEC 2022 JKSSB JE CIVIL
Q.NO.1. The structure of road is composed of:
Sub-grade
Sub-base
Base
All of these
Ans. D
Q.NO.2. A curve whose radius gradually changes from an infinite value to a finite value or vice-versa for the purpose if giving easy change of a road, is called a:
Circular curve
Transition curve
Simple curve
Compound curve
Ans. B
Q.NO.3. If the width of carriageway is 10m and the outer edge is 40cm higher then the inner edge, then the required super-elevation is:
1 in 25
1 in 400
1 in 100
1 in 200
Ans. A
Q.NO.4. A transition curve cannot be a:
Cubical spiral
True spiral
Compound curve
Cubic parabolic
Ans. C
Q.NO.5. For a single lane road, the width of pavement is generally kept:
3.5m
2.5m
1.25m
3m
Ans. A
Q.NO.6. The value of maximum gradient for hill roads is:
1 in 30
1 in 10
1 in 15
1 in 20
Ans. D
Q.NO.7. If the radius if curve is 380m, what is its degree designation on 20m arc
0.0526
0.00526
3.01
0.00091
Ans. C
Q.NO.8. The main advantage of concrete pavements is that:
It offers less resistance to traffic
It is nit slippery when clean
It has low maintenance cost
All of these
Ans. D
Q.NO.9. The shape of a vertical curve is:
Parabolic
Spiral
Elliptical
Cubic
Ans. A
Q.NO.10. The rate of rise or fall of the road surface along its length is called:
Elevation
Super-elevation
Gradient
Super-gradient
Ans. C
Q.NO.11. The value of ruling gradient in hills, as recommended by Indian road congress, is:
1 in 30
1 in 40
1 in 10
1 in 20
Ans. D
Q.NO.12. The main disadvantages of concrete roads are that
The initial cost is high
It requires skilled personnel for construction
It requires cautious handling of the materials
All of these
Ans. D
Q.NO.13. The total annual cost of highway transportation (A) may be expressed as (where B = annual cost of highway, C=annual cost of single vehicle and N=total number of vehicles on the road per year)
A = B – CN
A = B + CN
A = B/CN
A = CN/B
Ans. C
Q.NO.14. …………...is the most economical type of lining.
Minimum benefit-cast ratio
Maximum benefit-cast ratio
Zero benefit-cast ratio
benefit-cast ratio=1
Ans. B
Q.NO.15. In India, a curve is expressed in terms of angle in degree subtended to the centre by an arc of:
25 m radius
30 m radius
45 m radius
60 m radius
Ans. B
Q.NO.16. To change the direction of motion of vehicles in roads and railway tracks are known as
Traversing
Resection
Intersection
curves
Ans. D
Q.NO.17. The reaction time of a deriver …………...with the increase in speed.
Increases
Decreases
Remains constant
Can`t say
Ans. B
Q.NO.18. The top of the ground on which the foundation of a road rests, is called as:
Sub-grade
Sub-base
Base
Wearing course
Ans. A
Q.NO.19. For transportation purposes in India, the first preference is given to:
All lies
Roads
Shipping
Railways
Ans. B
Q.NO.20. The highest point on the road surface is called:
Crown
Camber
Gradient
Berm
Ans. A
Q.NO.21. The thickness of the parapet wall, on the valley side of the roadway, is usually kept as:
20 cm
40 cm
60 cm
80 cm
Ans. C
Q.NO.22. The rate of change of radial acceleration governs the:
Length of a transition curve
Extra width of pavement on the curve
Length of the tangent of a simple circular curve
All of the given options
Ans. A
Q.NO.23. The longest distance at which driver, whose line of sight is 1.2 m above the road surface can see the top of an object 10 cm high on the surface of the road is known as:
Crossing sight distance
Stopping or not passing sight distance
Passing sight distance
Lateral sight distance
Ans. B
Q.NO.24. The minimum thickness of the base of a flexible pavement is kept as:
5 cm
10 cm
15 cm
20 cm
Ans. B
Q.NO.25. The equilibrium super-elevation is given by which of the following formula
V^2/R
V^2/gR
V^2/127R
V^2/15R
Ans. B
Q.NO.26. The central portion of a road for high speed vehicle known as:
Express way
Highway
Urban road
Semi-urban road
Ans. A
Q.NO.27. The opportunity to cross slow moving traffic at intervals is not provided in case of
Two-lane highways
Three-lane highways
Four-lane highways
Eight-lane highways
Ans. C
Q.NO.28. The width of class 9 road is:
2.45 m
3.65 m
4.9 m
6 m
Ans. D
Q.NO.29. When the bearing capacity of the soil is poor and the intensity of traffic is high, an additional layer is provided between the soling and sub-grade. This layer is called:
Sub-grade
Sub-base
Base
Wearing course
Ans. B
Q.NO.30. When the straight lines which the two curves connect are nearly parallel or intersect at a small angle. For this type of curve used
Simple curve
Compound curve
Reverse curve
Transition curve
Ans. C
Q.NO.31. The formula for length of the tangent of a simple curve having angle of deflection θ and radius of curvature R, is equal to:
R sin θ/2
R cos θ/2
R tan θ/2
R cot θ/2
Ans. C
Q.NO.32. A camber consisting of two straight slopes joining at the centre is called
Barrel camber
Sloped camber
Composite camber
Straight camber
Ans. B