If R and T are rise and tread of a stair spanning horizontally, the steps are su

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Question
If R and T are rise and tread of a stair spanning horizontally, the steps are supported by a wall on one side and by a stringer beam on the other side, the steps are designed as beams of width
Options
A. R + T
B. T-R
C. R² + T²
D. R-T

Correct Answer

R² + T²

RCC Structures Design problems

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1. The reinforced concrete beam which has width 25 cm, lever arm 40 cm, shear force 6t/cm², safe shear stress 5 kg/cm² and B.M. 24 mt,
Options
A. is safe in shear
B. is unsafe in shear
C. is over safe in shear
D. needs redesigning.

4. Pick up the correct statement from the following:
Options
A. A pile is a slender member which transfers the load through its lower end on a strong strata
B. A pile is a slender member which transfers its load to the surrounding soil
C. A pile is a slender member which transfers its load by friction
D. A pile is a cylindrical body of concrete which transfers the load at a depth greater than its width.

5. In a prestressed beam carrying an external load W with a bent tendon is having angle of inclination ? and prestressed load P. The net downward load at the centre is
Options
A. W - 2P cos ?
B. W - P cos ?
C. W - P sin ?
D. W - 2P sin ?
E. W + 2P sin ?

6. A prestressed rectangular beam which carries two concentrated loads W at L/3 from either end, is provided with a bent tendon with tension P such that central one-third portion of the tendon remains parallel to the longitudinal axis, the maximum dip h is
Options
A.
B.
C.
D.
E.

7. A short column 20 cm x 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
Options
A. 4120 kg
B. 41, 200 kg
C. 412, 000 kg
D. none of these.

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