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Distribution of shear intensity over a rectangular section of a beam, follows:

A circular curve

A straight line

A parabolic curve

An elliptical curve

If the shear stress in a R.C.C. Beam is

Equal or less than 5 kg/cm², no shear reinforcement is provided

Greater than 4 kg/cm², but less than 20 kg/cm², shear reinforcement is provided

Greater than 20 kg/cm², the size of the section is changed

All the above

In a pre-stressed member it is advisable to use

Low strength concrete only

High strength concrete only

Low strength concrete but high tensile steel

High strength concrete and high tensile steel

In a simply supported slab, alternate bars are curtailed at

1/4th of the span

1/5th of the span

1/7th of the span

1/6th of the span

If L is the effective span of a R.C.C. Beam which is subjected to maximum shear q max at the ends, the distance from either end over which stirrups for the shear, are provided, is

(L/2) (1 - 3/qmax)

(L/3) (1 - 5/qmax)

(L/2) (1 - 5/qmax)

(L/2) (1 - 2/qmax)

Total pressure on the vertical face of a retaining wall of height h acts parallel to free surface and from the base at a distance of

H/4

H/3

H/2

2h/3

In a pre -stressed beam carrying an external load W with a bent tendon is having angle of inclination? And pre-stressed load P. The net downward load at the centre is

W - 2P cos θ

W - P cos θ

W - P sin θ

W - 2P sin θ

If the ratio of long and short spans of a two way slab with corners held down is r, the actual reduction of B.M. Is given by

(5/6) (r/1 + r²) M

(5/6) (r²/1 + r²) M

(5/6) (r²/1 + r³) M

(5/6) (r²/1 + r⁴) M

An R.C.C. Beam of 25cm width has a clear span of 5m and carries a U.D.L. of 2000kg/m inclusive of its self weight. If the lever arm of the section is 45cm., the beam is

Safe in shear

Is safe with stirrups

Is safe with stirrups and inclined members

Needs revision of the section

The minimum clear cover for R.C.C. Columns shall be

Greater of 40 mm or diameter

Smaller of 40 mm or diameter

Greater of 25 mm or diameter

Smaller of 25 mm or diameter

RCC Quiz Test-1

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