# Highway Engineering MCQs Part 2: Multiple Choice Q&A

Highway Engineering MCQs Part 2. Part 2 of Highway Engineering Multiple Choice Questions and Answers related to Civil Engineering. For Part 1 see Highway Engineering MCQs Part 1

## Highway Engineering MCQs Part 2

Select the correct statement ??

a. Psychological extra widening depends on the speed of vehicle
b. Psychological extra widening depends on the length of wheelbase
c. Mechanical extra widening depends on the speed of vehicle
d. Psychological extra widening depends on the number of traffic lanes

For the design of super elevation for mixed traffic conditions, the speed is reduced by ??

a. 75%
b. 25%
c. 20%
d. 15%

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

a. smaller of (A) and (B)
b. higher of (A) and (B)
c. based on the rate of change of superelevation
d. based on the allowable rate of change of centrifugal acceleration

For a constant value of the coefficient of lateral friction, the value of required super-elevation increases with ??

a. decrease in speed and with an increase in radius of curve
b. increase in speed and with a decrease in radius of curve
c. decrease in both speed and radius of curve
d. increase in both speed and radius of curve

If a ruling gradient is I in 20 and there is also a horizontal curve of radius 76 m, then the compensated grade should be ??

a. 6%
b. 5 %
c. 4%
d. 3 %

### MCQs Part 2

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

a. equal to camber
b. 1 in 10
c. 1 in 12.5
d. 1 in 15

Which of the following shapes is preferred in a valley curve ??

a. lemniscate
b. spiral
c. cubic parabola
d. simple parabola

On a horizontal curve if the pavement is kept horizontal across the alignment, then the pressure on the outer wheels will be ??

a. equal to the pressure on inner wheels
b. less than the pressure on inner wheels
c. more than the pressure on inner wheels
d. None

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

a. 10%
b. 1 %
c. 0.1 %
d. no compensation

The attainment of superelevation by rotation of pavement about the inner edge of the pavement ??

a. does not change the vertical alignment of road
b. avoids the drainage problem in flat terrain
c. results in balancing the earthwork
d. is preferable in steep terrain

Highway Engineering MCQs Part 2

The camber of road should be approximately equal to ??

b. three times the longitudinal gradient
c. two times the longitudinal gradient

To calculate the minimum value of the ruling radius of horizontal curves in plains, the design speed is given by ??

a. 20 kmph
b. 16kmph
c. 12kmph
d. 8 kmph

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

a. an ascending gradient meets with a level surface

In the case of hill roads, the extra widening is generally provided ??

a. one-fourth on the inner side and three-fourth on the outer side of the curve
b. fully on the outer side of the curve
c. fully on the inner side of the curve
d. equally on the inner and outer sides of the curve

Enoscope is used to find ??

a. time-mean speed
b. space-mean speed
c. spot speed
d. average speed

Highway Engineering MCQs Part 2

The maximum design gradient for the vertical profile of a road is ??

If an ascending gradient of 1 in 50 meets a descending gradient of 1 in 50, the length of the summit curve for a stopping sight distance of 80 m will be ??

a. 60m
b. 80m
c. 64m
d. zero

The transition curve used in the horizontal alignment of highways as per IRC recommendations is ??

a. cubic parabola
b. lemniscate
c. spiral
d. any of the above

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

a. 1 in 30
b. 1 in 20
c. 1 m 15
d. 1 in 12

The absolute minimum radius of the curve for safe operation for a speed of 110 kmph is ??

a. 577 m
b. 440 m
c. 220 m
d. 110 m

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