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Highway-pavements Questions Set 8:

Quiz Mode

Based on the group index of 7, the subgrade soil is rated as:

poor

very poor

good

fair

Solution:

What is the method by which electrical stabilization of soils is done?

Electric stabilizer

Electro – modification

Electric compaction

Electro – osmosis

Solution:

For a highway to be categorized as desirable, the value of the unevenness index (mm/km) should be:

1500 or less

1500-2500

3500 or more

none of the above

Solution:

For an axle load of 15 tonne on a road, the Vehicle Damage Factor (round off to two decimal places) in terms of the standard axle load of 8 tonne is _______.

Solution:

The extra widening required for a two-lane horizontal curve with a radius of 275 m, considering a wheel base of 7.5 m and a design speed of 80 km/h, is _____.

0.51 m

0.61 m

0.71 m

0.81 m

Solution:

Test used to evaluate the supporting power of subgrade for use in pavement design by using large diameter plates?

Triaxial compression test

The California bearing ratio test

Standard penetration test

Plate bearing test

Solution:

What is the California Bearing Ratio (CBR)?

Is a measure of soil strength

Is a procedure for designing Rigid pavements

Is a method of soil identification

Is a measure to indicate the relative strengths of paving materials

Solution:

The purpose of the Moving Car Observer method is to:

Find the traffic flow of a traffic stream

Estimate the traffic capacity of a road section

Carry out origin-destination studies

Identify accident-prone locations on a highway

Solution:

The radius of a horizontal curve is 100 m, the design speed is 50 km/h, and the design coefficient of lateral friction is 0.15. What would be the rate of superelevation if full lateral friction is considered?

1 in 21.2

1 in 15.8

1 in 25

1 in 32.6

Solution:

In a dual wheel assembly if P is equal to each wheel load, S is centre to centre distance of dual wheels and d is the distance between walls of wheels then

total stress due to the dual wheels at any depth greater than 2S is equivalent to a single wheel load of magnitude 2P

each wheel load acts independently upto a depth d

total stress due to the dual wheels at any depth greater than 2d is equivalent to a single wheel load of magnitude 2P

total stress due to the dual wheels at any depth is greater than 2d is equivalent to a single wheel load of magnitude 4P

Highway-pavements Questions Set 8:

Based on the group index of 7, the subgrade soil is rated as:

Solution:

What is the method by which electrical stabilization of soils is done?

Solution:

For a highway to be categorized as desirable, the value of the unevenness index (mm/km) should be:

Solution:

For an axle load of 15 tonne on a road, the Vehicle Damage Factor (round off to two decimal places) in terms of the standard axle load of 8 tonne is _______.

Solution:

The extra widening required for a two-lane horizontal curve with a radius of 275 m, considering a wheel base of 7.5 m and a design speed of 80 km/h, is _____.

Solution:

Test used to evaluate the supporting power of subgrade for use in pavement design by using large diameter plates?

Solution:

What is the California Bearing Ratio (CBR)?

Solution:

The purpose of the Moving Car Observer method is to:

Solution:

The radius of a horizontal curve is 100 m, the design speed is 50 km/h, and the design coefficient of lateral friction is 0.15. What would be the rate of superelevation if full lateral friction is considered?

Solution:

In a dual wheel assembly if P is equal to each wheel load, S is centre to centre distance of dual wheels and d is the distance between walls of wheels then

Solution:

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