Highway Engineering

201. Roundabouts are not suitable if number of vehicles exceed

1. 3000
2. 4000
3. 5000
4. 6000

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202. Ruling gradient on hill roads 300 m above M.S.L. is kept

1. 4 %
2. 5 %
3. 7 %
4. 8 %

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203. Select the correct statement.

1. More the value of group index, less thickness of pavement will be required
2. More the value of CBR, greater thickness of pavement will be required
3. Minimum and maximum values of group index can be 0 and 20 respectively
4. All of the above

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204. Selection of the routes, of highways depends upon

1. Feasibility of attaining ruling gradient
2. Avoidance of cutting hard rocks
3. Minimum number of bridges
4. All the above

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205. Set-back distance is the distance between

1. Road land boundary and building line
2. Road land boundary and control line
3. Building line and control line
4. Road land boundary and control line

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206. Setting out of Lemniscate transition curves, is done with

1. Perpendicular offsets
2. Radial offsets
3. Deflection angles
4. Polar deflection angles

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207. Shoulders for high traffic volume roads, should

1. Be stable throughout the year to be used by vehicles in the case of emergency
2. Support and protect the ends of carriage ways
3. Not allow entrance of water to sub-grade
4. All the above

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208. Side drains on both sides of a hill road, are essential when the road is

1. Along the spur curves
2. Along the re-entrant curves
3. In cutting
4. None of these

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209. Softening point of bitumen to be used for read construction at a place where maximum temperature is 40°C should be

1. Less than 40°C
2. Greater than 40°C
3. Equal to 40°C
4. None of the above

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210. Speed regulations on roads is decided on the basis of

1. 60 percentile cumulative frequency
2. 75 percentile cumulative frequency
3. 80 percentile cumulative frequency
4. 85 percentile cumulative frequency

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