Civil Engineering - RCC Structures Design

6. 

If the permissible compressive and tensile stresses in a singly reinforced beam are 50 kg/cm2 and 1400 kg/cm2 respectively and the modular ratio is 18, the percentage area At of the steel required for an economic section, is

A. 0.496%
B. 0.596%
C. 0.696%
D. 0.796%
E. none of these.

Answer: Option C

Explanation:

Taking Moment of area of tension and compression zone for a singly reinforced beam:


7. 

The live load to be considered for an inaccessible roof, is

A. Nil
B. 75 kg/m2
C. 150 kg/cm2
D. 200 kg/m2

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

8. 

If the maximum shear stress at the end of a simply supported R.C.C. beam of 6 m effective span is 10 kg/cm2, the share stirrups are provided for a distance x from either end where x is

A. 50 cm
B. 100 cm
C. 150 cm
D. 200 cm

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

9. 

The radius of a bar bend to form a hook, should not be less than

A. twice the diameter
B. thrice the diameter
C. four times the diameter
D. five times the diameter
E. none of these.

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

10. 

With usual notations the depth of the neutral axis of a balanced section, is given by

A.
B. t/mc = n/(d-n)
C.
D.

Answer: Option D

Explanation:

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