Highway Engineering problems
- 1. To prevent a head-on-collision of vehicles travelling in opposite directions along four-lane roads
Options- A. markings on the road are provided
- B. physical dividers are provided
- C. area dividers are provided
- D. medians of wide area are provided
- E. none of these. Discuss
Correct Answer: medians of wide area are provided
- 2. The gradients of trace cuts for hilly roads, are kept
Options- A. equal to ruling gradient
- B. 10 tO 20 per cent easier than ruling gradients
- C. 10 to 20 per cent steeper than ruling gradients
- D. none of these. Discuss
Correct Answer: 10 tO 20 per cent easier than ruling gradients
- 3. The normal road land width for a National or State highway, in open areas should be
Options- A. 45 m
- B. 30 m
- C. 24 m
- D. 20 m Discuss
Correct Answer: 45 m
- 4. Interior thickness of concrete road slab for design wheel load 6300 kg and permissible flexural stress 21 kg/cm2, is
Options- A. 17.0 cm
- B. 25.5 cm
- C. 34.0 cm
- D. 42.5 cm
- E. 50.0 cm Discuss
Correct Answer: 25.5 cm
- 5. If cross slope of a country is upto 10% the terain is classified as
Options- A. plain
- B. rolling
- C. mountainous
- D. steep. Discuss
Correct Answer: plain
- 6. If present A.D.T. is 5000 vehicles and annual increase is 10%, the average future flow after 5 years will be
Options- A. 6050 vehicles
- B. 7050 vehicles
- C. 8050 vehicles
- D. 9050 vehicles Discuss
Correct Answer: 8050 vehicles
- 7. Three points, A, B and C 500 m apart on a straight road have 500 m, 505 m and 510 m as their reduced levels. The road is said to have
Options- A. no gradient between A and C
- B. a positive gradient between A and C
- C. a negative gradient between A and C
- D. a negative gradient between A and B
- E. a positive gradient between A and B followed by a negative gradient between B to C. Discuss
Correct Answer: a positive gradient between A and B followed by a negative gradient between B to C.
- 8. Pick up the correct statement from the following:
Options- A. Detailed survey is carried out for a strip of land about 15 m on either side of the trace cut along straight portions
- B. Detailed survey is carried out for a strip of land about 30 m at sharp curves
- C. Levels are taken along the trace cut at an interval of 20 m
- D. Contour interval is generally adopted at 2 metres vertical interval
- E. All the above. Discuss
Correct Answer: All the above.
- 9. If d is the economic designed depth of a slab, the thickness of the cement concrete pavement slab at interior, is kept
Options- A. 1.275 d
- B. 1.125 d
- C. 0.85 d
- D. 0.75 d
- E. 0.60 d Discuss
Correct Answer: 0.85 d
- 10. In case of cement concrete pavements, pick up the incorrect statement
Options- A. tractive resistance is low
- B. initial cost of construction is high
- C. initial cost of construction is low
- D. visibility during nights is high
- E. none of these. Discuss
Correct Answer: initial cost of construction is low
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