Civil Engineering Transportations MCQ-1

 

Civil Engineering Transportations MCQ

1. Nagpur road plan formula were prepared by assuming
a) rectangular or block road pattern
b) radial or star and block road pattern
c) radial or star and circular road pattern
d) radial or star and grid road pattern
Ans: d

2. Select the correct statement.
a) Nagpur road plan formulae take into account the towns with very large population.
b) Nagpur road plan has a target road length of 32 km per 100 square km.
c) Second 20-year plan has provided 1600 km of expressways out of the proposed National highway.
d) Second 20-year plan allowed deduc-tion of length of railway track in the area while calculating the length of roads.
Ans: c

3. The sequence of four stages of survey in a highway alignment is
a) reconnaissance, map study, preli-minary survey and detailed survey
b) map study, preliminary survey, recon-naissance and detailed survey
c) map study, reconnaissance, prelimi-nary survey and detailed survey
d) preliminary survey, map study, recon-naissance and detailed survey
Ans: c

4. The shape of the camber, best suited for cement concrete pavements, is
a) straight line
b) parabolic
c) elliptical
d) combination of straight and parabolic
Ans: a

5. For water bound macadam roads in locali-ties of heavy rainfall, the recommended value of camber is
a) 1 in 30
b) 1 in 36
c) 1 in 48
d) 1 in 60
Ans: b

6. The stopping sight distance depends upon
a) total reaction time of driver
b) speed of vehicle
c) efficiency of brakes
d) all of the above
Ans: d

7. When the path travelled along the road surface is more than the circumferential movement of the wheels due to rotation, then it results in
a) slipping
b) skidding
c) turning
d) revolving
Ans: b

8. Coefficient of friction is less when the pavement surface is
a) rough
b) dry
c) smooth and dry
d) smooth and wet
Ans: d

9. The shoulder provided along the road edge should be
a) rougher than the traffic lanes
b) smoother than the traffic lanes
c) of same colour as that of the pave-ment
d) of very low load bearing capacity
Ans: a

10. Camber in the road is provided for
a) effective drainage
b) counteracting the centrifugal force
c) having proper sight distance
d) none of the above
Ans: a

11. Compared to a level surface, on a descending gradient the stopping sight distance is
a) less
b) more
c) same
d) dependent on the speed
Ans: b

12. On a single lane road with two way traffic, the minimum stopping sight distance is equal to
a) stopping distance
b) two times the stopping distance
c) half the stopping distance
d) three times the stopping distance
Ans: b

13. The desirable length of overtaking zone as per IRC recommendation is equal to
a) overtaking sight distance
b) two times the overtaking sight distance
c) three times the overtaking sight distance
d) five times the overtaking sight distance
Ans: d

14. Stopping sight distance is always
a) less than overtaking sight distance
b) equal to overtaking sight distance
c) more than overtaking sight distance
d) none of the above
Ans: a

15. Reaction time of a driver
a) increases with increase in speed
b) decreases with increase in speed
c) is same for all speeds
d) none of the above
Ans: b

16. If the stopping distance is 60 metres, then the minimum stopping sight distance for two lane, two way traffic is
a) 30m
b) 60m
c) 120m
d) 180m
Ans: b

17. The effect of grade on safe overtaking sight distance is
a) to increase it on descending grades and to decrease it on ascending grades
b) to decrease it on descending grades and to increase it on ascending grades
c) to increase it on both descending and ascending grades
d) to decrease it on both descending and ascending grades
Ans: c

18. The ruling design speed on a National Highway in plain terrain as per IRC recommendations is
a) 60 kmph
b) 80 kmph
c) 100 kmph
d) 120 kmph
Ans: c

19. The terrain may be classified as rolling terrain if the cross slope of land is
a) upto 10%
b) between 10% and 25%
c) between 25% and 60%
d) more than 60%
Ans: b

20. If b is the wheel track of a vehicle and h is the height of centre of gravity above road surface, then to avoid overturning and lateral skidding on a horizontal curve, the centrifugal ratio should always be
a) less than b/2h and greater than co-efficient of lateral friction
b) less than b/2h and also less than co-efficient of lateral friction
c) greater than b/2h and less than co-efficient of lateral friction
d) greater than b/2h and also greater than coefficient of lateral friction
Ans: b

21. As per IRC recommendations, the maximum limit of superelevation for mixed traffic in plain terrain is
a) 1 in 15
b) 1 in 12.5
c) 1 in 10
d) equal to camber
 Ans: a

22. For the design of superelevation for mixed traffic conditions, the speed is reduced by
a) 15%
b) 20%
c) 25%
d) 75%
Ans: c

23. On a horizontal curve if the pavement is kept horizontal across the alignment, then the pressure on the outer wheels will be
a) more  than  the  pressure  on  inner wheels
b) less than the pressure on inner wheels
c) equal to the pressure on inner wheels
d) zero
Ans: a