| 1. | As per IRC recommendations, the sub-grade or sub-base layer whatever underlies the concrete shearing slab, in concrete pavements, must confirm to the requirement that ? | |
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the base or sub-base extends atleast 30 cm wider on either side of the width to be concreted
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no soft spots are present in the sub-grade or sub-base
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the sub-grade is properly drained
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all of the above
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Report Question| 2. | Class-5 roads have a width of ? | |
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2.45 m
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3.65 m
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4.9 m
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6 m
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| 3. | According to IRC, the minimum length of the summit or valley curve should not be less than the ............ design speed in km/h ? | |
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one-half
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one-fourth
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two-third
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one-fifth
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| 4. | A horizontal curve on a road provides ? | |
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change in the gradient of road
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change in the direction
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both (a) and (b)
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none of these
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| 5. | The suitable gradient within which the engineer must endeavour to design the road ? | |
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limiting gradient
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ruling gradient
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average gradient
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exceptional gradient
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| 6. | The inward tilt given to the cross-section of the road surface, throughout the length horizontal curve, is known as ? | |
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super-elevation
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cant
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banking
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all of these
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| 7. | The Central Road Research Institute (C.R.R.I.) was started in Delhi, in ? | |
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1951
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1955
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1964
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1965
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| 8. | The portion of a road surface, which is used by vehicular traffic, is known as ? | |
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carriage-way
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shoulder
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express way
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all of these
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| 9. | The top of the ground on which the foundation of road rests, is called ? | |
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sub-grade
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soling
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base
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wearing layer
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| 10. | The stopping sight distance is the ................. of reaction distance and the braking distance ? | |
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sum
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difference
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product
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divide
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