Highway Engineering

341. Which of the following premix methods is used for base course?

1. Bituminous carpet
2. Mastic asphalt
3. Sheet asphalt
4. Bituminous bound macadam

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342. Which of the following represents a carpet of sand-bitumen mix without coarse aggregates?

1. Mastic asphalt
2. Sheet asphalt
3. Bituminous carpet
4. Bituminous concrete

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343. Which of the following represents hardest grade of bitumen?

1. 30/40
2. 60/70
3. 80/100
4. 100/120

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344. Which of the following tests measures the toughness of road aggregates?

1. Crushing strength test
2. Abrasion test
3. Impact test
4. Shape test

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345. Which one of the following transportation systems is not used for the conveyance of passengers in India?

1. Railways
2. Roads
3. Shipping
4. Pipe lines

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346. While calculating the overtaking sight distance, the height of the object above road surface, is assumed

1. 50 cm
2. 75 cm
3. 100 cm
4. 120 cm

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347. While calculating the sight distances, the driver's eye above road surface, is assumed

1. 90 cm
2. 100 cm
3. 110 cm
4. 120 cm

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348. While designing hair pin bends on highways, the minimum

1. Designed speed is 20 km/hour
2. Gradient is 1 in 40
3. Gradient is 1 in 200
4. All the above

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349. Widening of the roads on curves in hilly region, is done

1. On the outer side
2. On the inner side
3. On the outer and inner sides equally
4. Less on outer side and more on inner side

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350. Width of a rotary round should be equal to

1. Twice the width of narrowest radial road
2. Width of the widest road
3. Width of the widest road plus the width of one lane
4. Width of the widest road plus 2 metres

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