Design of Structures (3150612) MCQs

MCQs of Philosophy of Limit state design for RC structures

Showing 11 to 10 out of 20 Questions
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11.

In Limit state method of concrete structure, the strain distribution is assumed to be

(a)

Linear
(b)

Non linear
(c)

Parabolic
(d)

Parabolic and rectangular
Answer:

Option (a)

12.

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

(a)

Deflection
(b)

Cracking
(c)

Torsion
(d)

Durability
Answer:

Option (c)

13.

IS-456 permits maximum redistribution of_______of  moments

(a)

15%
(b)

25%
(c)

30%
(d)

45%
Answer:

Option (c)

14.

In Working stress and Limit state methods of R.C.C Design,

(a)

Plane section remains plane after bending
(b)

The tensile strength of concrete ignored
(c)

Both (A) and (B) are correct
(d)

None of above
Answer:

Option (c)

15.

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)

16.

The characteristic strength of concrete is

(a)

Higher than average cube strength
(b)

Lower than average cube strength
(c)

Same as average cube strength
(d)

Higher than 90% of average cube strength
Answer:

Option (b)

17.

In working stress method, the factor of safety applied to the stress in concrete is usually about,

(a)

2
(b)

3
(c)

4
(d)

5
Answer:

Option (b)

18.

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)

19.

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)

20.

An R.C.C beam of 200mm X 300mm effective is subjected to factored shear force 50 kN. The permissible shear stress is 0.2 <math xmlns="http://www.w3.org/1998/Math/MathML"><mfrac><mi>N</mi><mrow><mi>m</mi><msup><mi>m</mi><mn>2</mn></msup></mrow></mfrac></math>. The design shear force in kN is

(a)

12
(b)

38
(c)

50
(d)

60
Answer:

Option (b)

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