Civil Engineering - GATE Exam Questions

21. 

The span (s) to be loaded uniformly for maximum positive (upward) reaction at support P, as shown in the figure below, is (are)

A. PQ only
B. PQ and QR
C. QR and RS
D. PQ and RS

Answer: Option D

Explanation:

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22. 

Mechanical stabilization requires :

A. mixing of two or more types of natural soils
B. addition of chemicals to soils
C. addition of lime to soils
D. addition of cementing material to soils

Answer: Option A

Explanation:

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23. 

The disinfection efficiency of chlorine in water treatment

A. is not dependent on pH value.
B. is increased by increased pH values.
C. remains constant at all pH values.
D. is reduced by increased pH value.

Answer: Option D

Explanation:

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24. 

Chlorine is some times used in sewage treatment

A. to avoid flocculation
B. to increase biological activity of bacteria
C. to avoid bulking of activated sludge
D. to help in grease separation

Answer: Option C

Explanation:

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25. 

The deflection of a cantilever beam at free end b applied with a moment M at the same point is :

A. M l2/EI
B. M l2/2 EI
C. M l2/3 EI
D. M l2/4 EI

Answer: Option B

Explanation:

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