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RCC Structures Design

RCC Structures Design
According to I.S.: 456, 1978 the thickness of reinforced concrete footing on piles at its edges, is kept less than

30 cm
75 cm
20 cm
40 cm

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RCC Structures Design
If the average bending stress is 6 kg/cm² for M 150 grade concrete, the length of embedment of a bar of diameter d according to I.S. 456 specifications, is

58 d
38 d
48 d
28 d

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RCC Structures Design
A short column 20 cm × 20 cm in section is reinforced with 4 bars whose area of cross section is 20 sq. cm. If permissible compressive stresses in concrete and steel are 40 kg/cm² and 300 kg/cm², the Safe load on the column, should not exceed

412,000 kg
41,200 kg
None of these
4,120 kg

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RCC Structures Design
If longitudinally spanning stairs are casted along with their landings, the maximum bending moment per metre width, is taken as

wl212
wl28
wl24
wl210

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RCC Structures Design
If T and R are the tread and rise of a stair which carries a load w per square metre on slope, the corresponding load per square metre of the horizontal area, is

w √(R² + T²)/T
w √(R + T)/T
w (R/T)
w (R + T)/T

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RCC Structures Design
The neutral axis of a T-beam exists

All listed here
At the bottom edge of the slab
Within the flange
Below the slab

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