Design of Structures (3150612) MCQs

MCQs of Limit state design of RC structural Element

Showing 21 to 30 out of 155 Questions
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21.

An under-reinforced sections are

(a)

Undergo larger deflection at failure
(b)

Fails sudden
(c)

Capable to carry stress reversal
(d)

Less stiffer
Answer:

Option (a)

22.

The limiting moment of resistance of singly reinforced beam of size 200 x 500 mm effective is, consider M20 and Fe 415 material grades

(a)

138 kN-m
(b)

69 kN-m
(c)

90 kN-m
(d)

235.4 kN-m
Answer:

Option (a)

23.

A singly reinforced beam is of width 200 mm. If the factored moment of resistance is 138 kN-m, M20 and Fe415 grade of materials, then effective depth of beam is

(a)

400 mm
(b)

500 mm
(c)

657 mm
(d)

456 mm
Answer:

Option (b)

24.

A singly reinforced beam is reinforced with 4 bars of 16mm diameter. Its dimensions are 250x500mm effective. For M20 and Fe500, it is to be designed as

(a)

Under-reinforced section
(b)

Over-reinforced section
(c)

Balanced Section
(d)

Doubly reinforced section
Answer:

Option (a)

25.

A singly reinforced beam having effective depth 500mm and  grade of materials M20 and Fe500. then how much width of beam required to resist factored moment of 149 kN-m?

(a)

200 mm
(b)

300 mm
(c)

225 mm
(d)

456 mm
Answer:

Option (a)

26.

As the percentage of tension steel increases in singly R.C. beam

(a)

Depth of neutral axis decreases
(b)

Depth of neutral axis increases
(c)

Lever arm increases
(d)

Lever arm decreases
Answer:

Option (b)

27.

An under-reinforced section means

(a)

Steel is provided at the underside only
(b)

Steel provided is insufficient
(c)

Steel provided on one face only
(d)

Steel will yield first
Answer:

Option (d)

28.

In a singly reinforced beam, if the permissible stress in concrete reaches earlier than that in steel, the beam section is called

(a)

Under-reinforced section
(b)

Over reinforced section
(c)

Economic section
(d)

Critical section
Answer:

Option (b)

29.

In a singly reinforced beam, the effective depth is measured from its compression edge to

(a)

Tensile edge
(b)

Tensile reinforcement
(c)

Neutral axis of the beam
(d)

Longitudinal central axis
Answer:

Option (b)

30.

Doubly R.C beam is considered less economical than singly R.C beam because

(a)

Tensile steel required is more
(b)

Shear reinforcement is more
(c)

Concrete is not stressed to its full value
(d)

Compression steel is under stressed
Answer:

Option (d)

Showing 21 to 30 out of 155 Questions
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