| 1. | The main disadvantage of concrete roads is that ? | |
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the initial cost is high
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it requires skilled personnel for construction
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it requires cautious handling of the material
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all of the above
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Report Question| 2. | The structure of a road is composed of ? | |
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sub-grade
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sub-base
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base
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all of these
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| 3. | Valley curves are required to be introduced ? | |
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a negative grade meets a positive grade the situations where
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a negative grade meets another milder negative grade
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a negative grade meets a steeper positive grade
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all of the above
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| 4. | The factor which influences the design of curves, is ? | |
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speed of vehicle
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maximum permissible super-elevation
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permissible centrifugal ratio
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all of these
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| 5. | According to IRC: 52-1973, the first stage for fixing up alignment of a hill road is ? | |
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trace cut
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detailed survey
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preliminary survey
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reconnaissance
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| 6. | At the end of the reconnaissance phase, the selected alignment is pegged by using about 2m poles on which the ? | |
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number of peg is marked
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direction of proposed alignment is marked
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distance between the two pegs is marked
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all of these
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| 7. | Which of the following statement is correct ? | |
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The sub-base thickness is directly proportional to the group index of the soil
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The higher the group index of the soil, the larger is the thickness of the sub-base
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If the group index value of the sub-base is between 5 and 9, then the sub-base is poor
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all of the above
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| 8. | The longitudinal levels, in detailed survey of a hill road, should be taken at ............... intervals ? | |
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4 m
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6 m
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8 m
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10 m
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| 9. | The longitudinal joints may be ? | |
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tongue and groove type
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butt type
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weakened plane type
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all of these
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| 10. | In CBR test, the value of CBR is calculated at ? | |
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2.5 mm penetration only
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5 mm penetration only
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both 2.5 and 5 penetration
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none of these
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