Civil Engineering - UPSC Civil Service Exam Questions

31. 

Consider the following statements :
Higher water-cement ratio in concrete results in
1. stronger mix.
2. better workable mix.
3. a weak mix.
4. less bleeding.

A. 1 and 2 are correct
B. 2 and 3 are correct
C. 3 and 4 are correct
D. 1 and 4 are correct

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

32. 

Which one of the following is not the reason for coning of wheels ?

A. To reduce the wear and tear of wheel flanges and rails
B. To provide the possibility of lateral movement of axle
C. To reduce the unit weight of wheels
D. To prevent wheels from slipping to some extent

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

33. 

For a vertical stiffened web of a plate girder, the lesser clear dimension of the panel should not exceed :(Where t is the thickness of the web

A. 85 t
B. 180 t
C. 200 t
D. 250 t

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

34. 

Deck bridges have the main disadvantage that

A. their compression flanges have no lateral support
B. the traffic is exposed to winds
C. it is not possible to provide portal bracings
D. the road level has to be very high

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

35. 

Electrostatic precipitator is a device to control

A. SO2 emission
B. Particulate emission
C. Both SO2 and particulate emission
D. Precipitation of Al(OH)3 in water coagulation.

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.