Design of Structures (3150612) MCQs

MCQs of Introduction

Showing 1 to 10 out of 20 Questions
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1.

As per IS-456, Tensile strength of concrete can be expressed as

(a)

5000√fck
(b)

0.7√fck
(c)

0.7 fck
(d)

0.1 fck
Answer:

Option (b)

2.

As per IS-456, Modulus of Elasticity of concrete can be expressed as

(a)

5000√fck
(b)

0.7√fck
(c)

5000 fck
(d)

0.1 fck
Answer:

Option (a)

3.

As per IS-456, concrete having characteristic strength varying between M25 to M55 is known as

(a)

ordinary concrete
(b)

Standard concrete
(c)

Nominal concrete
(d)

Normal concrete
Answer:

Option (b)

4.

TMT (Thermo mechanically treated) bars have

(a)

High tensile strength
(b)

Higher resistance to corrosion
(c)

More ductility
(d)

All of these
Answer:

Option (d)

5.

The modulus of rupture of concrete gives

(a)

Direct tensile strength of concrete
(b)

Direct compressive strength of concrete
(c)

Tensile strength of concrete in bending
(d)

Characteristic strength of concrete
Answer:

Option (c)

6.

The ratio of direct tensile strength to compression strength of concrete is taken as

(a)

0.05
(b)

0.15
(c)

0.25
(d)

0.35
Answer:

Option (b)

7.

High yield strength deformed bars have a

(a)

definite yield value
(b)

chemical composition different than mild steel
(c)

percentage elongation less than that of mild steel
(d)

percentage elongation more than that of mild steel
Answer:

Option (c)

8.

Minimum Grade of concrete for R.C.C work is

(a)

M15
(b)

M20
(c)

M25
(d)

M30
Answer:

Option (b)

9.

The flexural strength of M25 grade concrete as per IS-456 is

(a)

3.5 MPa
(b)

5.5 MPa
(c)

21.5 MPa
(d)

30.0 MPa
Answer:

Option (a)

10.

The environment exposure condition of concrete buried under aggressive sub soil is classified as

(a)

Moderate
(b)

Severe
(c)

Very severe
(d)

Extreme
Answer:

Option (c)

Showing 1 to 10 out of 20 Questions
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