Highway Engineering

211. Stability of hill slopes depends upon

1. Nature of the slope
2. Angle of the slope
3. Geological conditions
4. All the above

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212. Super-elevation on roads in snow bound areas, should generally not exceed

1. 15 %
2. 12 %
3. 10 %
4. 7 %

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213. The ability of a driver to stop the vehicle moving with the designed speed, depends upon:

1. Perception time
2. Brake reaction time
3. Efficiency of the brakes
4. All the above

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214. The absolute minimum radius of horizontal curve for a design speed 60 kmph is

1. 131 m
2. 210 m
3. 360 m
4. None of these

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215. The absolute minimum sight distance required for stopping a vehicle moving with a speed of 80 kmph, is

1. 120 m
2. 200 m
3. 640 m
4. None of these

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216. The advantage of providing super-elevation on roads, is

1. Higher speed of vehicles
2. Increased volume of traffic
3. Reduced maintenance cost of the roads
4. All the above

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217. The aggregates required for one kilometre length of water bound macadam road per meter width and for 10 mm thickness is

1. 8 cubic meter
2. 10 cubic meter
3. 12 cubic meter
4. 15 cubic meter

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218. The basic formula for determination of pavement thickness was first suggested by

1. Spangler
2. Picket
3. Kelly
4. Goldbeck

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219. The best compromise between the increase of the length of a highway and reduction in its load carrying capacity, is the ruling gradient

1. 1 in 10
2. 1 in 15
3. 1 in 20
4. 1 in 25

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220. The binder normally used in flexible pavement construction is

1. Cement
2. Lime
3. Bitumen
4. None of the above

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