HIGHWAY ENGINEERING QUIZ

As per IRC recommendations, the maximum limit of super elevation for mixed traffic in plain terrain is

1 in 12.5

1 in 10

1 in 15

equal to camber

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For design, that length of transition curve should be taken which is

higher of (A) and (B)

smaller of (A) and (B)

based on allowable rate of change of centrifugal acceleration

based on rate of change of super elevation

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The percentage compensation in gradient for ruling gradient of 4% and horizontal curve of radius 760 m is

0.1 %

no compensation

10%

1 %

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The function of an expansion joint in rigid pavements is to

Allow free expansion

Resist stresses due to expansion

Relieve shrinkage stresses

Relieve warping stresses

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The terrain may be classified as rolling terrain if the cross slope of land is

between 25% and 60%

upto 10%

more than 60%

between 10% and 25%

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Tyre pressure influences the

None of these

quality of surface course

both the above

total depth of pavement

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

0.3

0.45

0.1

0.2

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Creep is the

Vertical movement of rail

Difference in level of two rails

Longitudinal movement of rail

Lateral movement of rail

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In case of summit curves, the deviation angle will be maximum when

a descending gradient meets with another descending gradient

an ascending gradient meets with a level surface

an ascending gradient meets with another ascending gradient

an ascending gradient meets with a descending gradient

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Bottom most layer of pavement is known as

subgrade

sub-base course

wearing course

base course

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