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UPSC Civil Service Exam Questions - Engineering

Q1:

If p is the specific gravity of the material used in the design of a masonry dam of triangular section, then the ratio between the height and base width of the dam for structural safety and stability is equal to

A
2p

B
p

C
1/p

D
1/p

ANS:B -

p

No tension criteria B = H/&root; p-c.
c = 0.
H = B &root;p

For no sliding,
B = H/u[p-c].