HIGHWAY ENGINEERING QUIZ

The most efficient traffic signal system is

alternate system

flexible progressive system

simple progressive system

simultaneous system

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The thickness of bituminous carpet varies from

50 to 75 mm

75 to 100 mm

20 to 25 mm

100 to 120 mm

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The maximum allowable Los Angeles abrasion value for high quality surface course is

0.45

0.1

0.3

0.2

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The most suitable equipment for compacting clayey soils is a

smooth wheeled roller

vibrator

pneumatic tyred roller

sheep foot roller

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RC-2, MC-2 and SC-2 correspond to

None of these

viscosity in decreasing order from RC-2 to SC-2

viscosity in increasing order from RC-2 to SC-2

same viscosity

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With increase in speed of the traffic stream, the maximum capacity of the lane

first increases and then decreases after reaching a maximum value at optimum speed

increases

decreases

first decreases and then increases after reaching a minimum value at optimum speed

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In highway construction, rolling starts from

Sides and proceed to center

One side and proceed to other side

Any of the above

Center and proceed to sides

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The value of ruling gradient in plains as per IRC recommendation is

1 in 30

1 in 12

1 in 20

1 m 15

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The drain which is provided parallel to roadway to intercept and divert the water from hill slopes is known as

Cross drain

Side drain

Sloping drain

Catch-water drain

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When the bituminous surfacing is done on already existing black top road or over existing cement concrete road, the type of treatment given is

Spray of emulsion

Seal coat

Tack coat

Prime coat

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