Highway Engineers- Exam

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1. A district road with a bituminous pavement has a horizontal curve of 1000 m for a design speed of 75 km ph. The super-elevation is
A. 1 in 40
B. 1 in 50
C. 1 in 60
D. 1 in 70
E. none of these.
Answer: Option A

2. The minimum value of camber provided for thin bituminous surface hill roads, is
A. 2.2%
B. 2.5%
C. 3.0%
D. 3.5%
Answer: Option B

3. Design of horizontal and vertical alignments, super-elevation, sight distance and grades, is worst affected by
A. width of the vehicle
B. length of the vehicle
C. height of the vehicle
D. speed of the vehicle
Answer: Option D

4. Thickness of a pavement may be reduced considerably by
A. compaction of soil
B. stabilisation of soil
C. drainage of soil
D. combination of all the above.
Answer: Option D

5. The total length of a valley formed by two gradients - 3% and + 2% curve between the two tangent points to provide a rate of change of centrifugal acceleration 0.6 m/sec2, for a design speed 100 km ph, is
A. 16.0 m
B. 42.3 m
C. 84.6 m
D. none of these.
Answer: Option C

6. Reinforcement in cement concrete slab of road pavements, is placed
A. longitudinally
B. transversely
C. longitudinally and transversely
D. in the form of welded wire mesh
E. none of these.
Answer: Option D

7. If d is the thickness of a concrete pavement, the equivalent radius b of resisting section for an interior loading, is
A. b = 0.6 + d2 - 0.675 d
B. b = 1.6 + d2 + 0.675 d
C. b = 1.6 + d2 - 3.675 d
D. b = 1.6 + d2 - 0.675 d
Answer: Option D

8. According to IRC : 52-1973, for a single lane National Highway in hilly region,
A. width of the carriageway must be 3.75 m
B. shoulders on either side must be 1.25 m
C. total width of the road-way must be 6.25 m
D. total of the above.
Answer: Option D

9. If x% is the gradient of an alignment and y% is the gradient after proper superelevation along a curved portion of a highway, the differential grade along the curve, is
A. (x + y)%
B. (x - y)%
C. (y - x)%
D. (x x y)%
E. (y + x)%
Answer: Option C

10. In an ideal transition curve, the radius of curvature
A. is constant
B. at any point is directly proportional to its distance from the point of commencement
C. is inversely proportional to the radius of main curve
D. is directly proportional to the radius of main curve
Answer: Option C

11. 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.
Answer: Option D

12. 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.
Answer: Option D

13. Floating gradients are generally provided
A. along maximum gradients
B. along minimum gradients
C. at summit curves
D. at valley curves
E. every where.
Answer: Option C

14. 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.
Answer: Option D

15. 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
Answer: Option E

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