HIGHWAY ENGINEERING QUIZ

If the group index value of subgrade is between 5 and 9, then the subgrade is treated as

very poor

fair

poor

good

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If aggregate impact value is 20 to 30 percent, then it is classified as

unsuitable for road surfacing

satisfactory for road surfacing

strong

exceptionally strong

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Nagpur road plan formula were prepared by assuming

radial or star and grid road pattern

radial or star and block road pattern

rectangular or block road pattern

radial or star and circular road pattern

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If the stopping distance and average length of a vehicle are 18 m and 6 m respectively, then the theoretical maxi¬mum capacity of a traffic lane at a speed of 10 m/sec is

2000 vehicles per hour

2500 vehicles per hour

3000 vehicles per hour

1500 vehicles per hour

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Group index method of design of flexible pavement is

A semi empirical method

A theoretical method

An empirical method based on strength characteristics of sub-grade soil

An empirical method based on physical properties of sub-grade soil

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For rapid curing cutbacks, the oil used is

light diesel

heavy diesel

gasoline

kerosene oil

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For water bound macadam roads in localities of heavy rainfall, the recommended value of camber is

1 in 48

1 in 60

1 in 36

1 in 30

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If the average center to center spacing of vehicles is 20 meters, then the basic capacity of a traffic lane at a speed of 50 kmph is

1000 vehicles per hour

2000 vehicles per hour

2500 vehicles per day

2500 vehicles per hour

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With increase in speed of the traffic stream, the minimum spacing of vehicles

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

increases

decreases

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

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For the construction of water bound macadam roads, the correct sequence of operations after spreading coarse aggregates is

dry rolling, application of filler, wet rolling and application of screening

dry rolling, application of screening, application of filler and wet rolling

dry rolling, application of screening, wet rolling and application of filler

dry rolling, wet rolling, application of screening and application of filler

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