Design of Reinforced Concrete structures (3160612) MCQs

MCQs of Building Layout and Design

Showing 21 to 30 out of 106 Questions
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21.

Which of the following is not a limit state of serviceability ?

(a)

Deflection
(b)

Cracking
(c)

Torsion
(d)

Durability
Answer:

Option (c)

22.

IS-456 permits maximum redistribution of_______of  moments

(a)

15%
(b)

25%
(c)

30%
(d)

45%
Answer:

Option (c)

23.

Important Limit states for design of structures are

(a)

Limit state of collapse
(b)

Limit state of Serviceability
(c)

Both (A) and (B)
(d)

None of above
Answer:

Option (c)

24.

The failure in case of limit state of collapse is defined in terms of

(a)

Failure stress
(b)

Failure strain
(c)

Failure load
(d)

All of the above
Answer:

Option (d)

25.

If Xu/d is greater than the limiting value, then section is designed as

(a)

Under-reinforced section
(b)

Over-reinforced section
(c)

Redesign
(d)

Balanced section
Answer:

Option (c)

26.

The lever arm in limit state design is expressed as

(a)

d-0.446 Xu 
(b)

d-0.87 Xu 
(c)

d-0.36 Xu 
(d)

d-0.42 Xu 
Answer:

Option (d)

27.

The maximum area of tension reinforcement in beams shall not exceed

(a)

0.15%
(b)

1.5%
(c)

4%
(d)

1%
Answer:

Option (c)

28.

Design of R.C.C. simply supported beams carrying U.D.L. is based on the resultant B.M. at

(a)

Supports
(b)

Mid span
(c)

Every section
(d)

Quarter span
Answer:

Option (b)

29.

Limiting moment of Resistance of R.C. beam for Fe415 grade steel is

(a)

Mulim=0.138 fck bd2
(b)

Mulim=0.148 fck bd2
(c)

Mulim=0.133 fck bd2
(d)

Mulim=0.130 fck bd2
Answer:

Option (a)

30.

For under-reinforced section, Moment of Resistance is expressed as

(a)

Mu=0.87(Astfck) [d - 0.466 Xu]
(b)

Mu=0.87(fckfy) [d - 0.466 Xu]
(c)

Mu=0.87fy Ast [d - 0.42Xu]
(d)

Mu=0.36 fy Ast [d - 0.42Xu]
Answer:

Option (c)

Showing 21 to 30 out of 106 Questions
1 2 3 4 5 6