Building Construction

1

Engineering news formula for obtaining safe bearing capacity of pile for drop hammer, is,

A. Q = `(w.h)/(6(S + 2.5))`

B. Q = `(w.h)/(2.5(S + 6))`

C. Q = `(w.6)/(h(S + 2.5))`

D. Q = `(wxx.2.5)/(6(S + h))`

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2

According to Rankine's formula, minimum depth of foundations, is

A. `p/w` x `((1 + sin varphi)/(1 - sin varphi))^2`

B. `p/w` x `((1 - sin varphi)/(1 + sin varphi))^2`

C. `(p)/(2w)` x `((1- sin varphi)/(1 + sin varphi))^2`

D. `p/w` x `((1 + sin varphi)/(1 - sin varphi))`

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3

If (`varphi`) is the angle of repose of soil of weight w kg/m³, the horizontal pressure p at a depth of h metres per metre length of wall, is

A. wh x `(1 - sin varphi)/(1 + sin varphi)`

B. `(wh)/(2)` x `(1 - sin varphi)/(1 + sin varphi)`

C. wh x `sqrt((1 - sin varphi)/(1 + sin varphi))`

D. wh x `sqrt((1+ sin varphi)/(1 - sin varphi))`

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4

A stair should not have pitch more than

A. 25⁰

B. 30⁰

C. 40⁰

D. 50⁰

E. 60⁰

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5

In flat roof of reinforced cement concrete, the recommended angle of slope, is

A. zero

B. a few degrees

C. 10⁰

D. 200⁰.

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