Civil Engineering MCQs

Page No. 283

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


a 1 in 12


b1 m 15


c1 in 20


d1 in 30


View Answer 1 in 30

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


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


b64m


c80m


d60m


View Answer 60m

Enoscope is used to find______________?


a average speed


b spot speed


cspace-mean speed


dtime-mean speed


View Answer spot speed

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


aan ascending gradient meets with another ascending gradient


ban ascending gradient meets with a descending gradient


ca descending gradient meets with another descending gradient


dan ascending gradient meets with a level surface



The camber of road should be approximately equal to___________________?


a longitudinal gradient


btwo times the longitudinal gradient


cthree times the longitudinal gradient


d half the longitudinal gradient



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


a0.1 %


b 1 %


c10%


dno compensation


View Answer no compensation

D. 6% Which of the following shapes is preferred in a valley curve ?


asimple parabola


b cubic parabola


cspiral


dlemniscate


View Answer cubic parabola

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


a 3 %


b4%


c5 %


d6%


View Answer 4%

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


abased on allowable rate of change of centrifugal acceleration


bbased on rate of change of super elevation


chigher of (A) and (B)


dsmaller of (A) and (B)


View Answer higher of (A) and (B)

Select the correct statement_________________?


aPsychological extra widening depends on the number of traffic lanes.


bMechanical extra widening depends on the speed of vehicle.


cPsychological extra widening depends on the length of wheel base.


dPsychological extra widening depends on the speed of vehicle



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