Highway Engineering

1. A district road with a bituminous pavement has a horizontal curve of 1000 m for a design speed of 75 km ph. The super-elevation is

1. 1 in 40
2. 1 in 50
3. 1 in 60
4. 1 in 70

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2. A gradient along which the vehicle does not require any tractive effort to maintain a specified speed, is known as

1. Ruling gradient
2. Pushing gradient
3. Floating gradient
4. Minimum gradient

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3. A single lane carriage way whenever changes to two-lane carriage way, is affected through a taper of

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

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4. A subsidiary area in a carriageway placed so as to control the movement of the traffic, is

1. Median strip
2. Island
3. Flower bed
4. Refuge

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5. A traffic rotary is justified where

1. Number of intersecting roads is between 4 and 7
2. Space is limited and costly
3. When traffic volume is less than 500 vehicles per hour
4. When traffic volume is more than 5000 vehicles per hour

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6. According to Highway Research Board of U.S.A. practical land width, is

1. 2.7 m
2. 3.0 m
3. 3.3 m
4. 3.6 m

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7. According to Indian Road Congress, the width of carriageway, is

1. 3.75 m for single lane
2. 7.0 m for two lanes without raised kerbs
3. 7.5 m for two lanes with raised kerbs
4. All the above

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8. According to IRC : 52-1973, for a single lane National Highway in hilly region,

1. Width of the carriageway must be 3.75 m
2. Shoulders on either side must be 1.25 m
3. Total width of the road-way must be 6.25 m
4. Total of the above

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9. According to the recommendations of Nagpur Conference, the width formation of an ideal National Highway in hard rock cutting, is

1. 8.9 m
2. 7.9 m
3. 6.9 m
4. 6.5 m

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10. Alignment of highways in hilly regions, is decided on

1. Long stretch of very hard cutting
2. Number of river crossings
3. Natural unstable areas
4. All the above

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