Highway Engineering

161. Minimum radius of curvature of National Highways or State highways in hill region free from snow, is kept

1. 60 m
2. 50 m
3. 33 m
4. 30 m

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162. Minimum stopping distance for moving vehicles on road with a design speed of 80 km/hour, is

1. 80 m
2. 100 m
3. 120 m
4. 150 m

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163. Minimum thickness of a layer of fine sand required to cut off capillary rise of water completely, should be

1. 40 cm
2. 52 cm
3. 64 cm
4. 76 cm

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164. Minimum thickness of the base of a flexible pavement, is

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

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165. Most suitable material for highway embankments is

1. Granular soil
2. Organic soil
3. Silts
4. Clays

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166. Newly constructed pavement with ordinary Portland cement attains its working strength after

1. 7 days
2. 14 days
3. 21 days
4. 28 days

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167. Non-passing sight distance along a road is the longest distance at which the driver of a moving vehicle, may see an obstacle on the pavement

1. 10 cm high
2. 25 cm high
3. 50 cm high
4. 100 cm high

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168. Normal formation width of a hill road for one-way traffic, is

1. 3.6 m
2. 4.8 m
3. 6.6 m
4. 7.2 m

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169. On a pavement with parabolic camber, the angle of inclination of the vehicles will be

1. More at the crown
2. Less at the edges
3. More at the edges
4. Same at the edges as well as at the crown

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170. On concrete roads, the camber generally provided, is

1. 1 in 20 to 1 in 24
2. 1 in 30 to 1 in 48
3. 1 in 36 to 1 in 48
4. 1 in 60 to 1 in 72

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