Design of Structures (3150612) MCQs

MCQs of Philosophy of Limit state design for RC structures

Showing 1 to 10 out of 20 Questions
1 2
1.

The acceptable limit for the safety and serviceability requirements before failure occurs is called

(a)

Breaking point
(b)

Failure point
(c)

Limit state
(d)

Ductility
Answer:

Option (b)

2.

The maximum strain in the tension reinforcement in section at failure shall not  be less than

(a)

0.002+(0.87 fyEs)

(b)

0.0035+(0.87 fyEs)

(c)

0.0035+(0.87 fy1.15 Es)

(d)

0.002+(0.87 Esfy )

Answer:

Option (a)

3.

The design strength of steel in limit state design is

(a)

 fy1.5 
(b)

fy0.87
(c)

0.87fy
(d)

 0.27fy
Answer:

Option (c)

4.

A simply supported beam carries working live load of 2.5 kN/m and dead load is 3.5 kN/m, the design load for limit state of collapse is,

(a)

9 kN/m
(b)

6 kN/m
(c)

7.2 kN/m
(d)

12 kN/m
Answer:

Option (a)

5.

For steel of grade Fe500, the value of Xumax/d is

(a)

0.48
(b)

0.46
(c)

0.53
(d)

0.43
Answer:

Option (b)

6.

The partial safety factor to be used in limit state of deflection of concrete is

(a)

1.2
(b)

1.5
(c)

1.0
(d)

0.8
Answer:

Option (c)

7.

The partial safety factor for steel for limit state design of concrete structures is

(a)

1.5
(b)

1.15
(c)

1.0
(d)

0.87
Answer:

Option (b)

8.

The partial safety factor for Concrete for limit state design of concrete structures is

(a)

1.5
(b)

1.15
(c)

1
(d)

0.87
Answer:

Option (a)

9.

The stress strain curve of concrete as per IS-456 is

(a)

Perfect straight line up to failure
(b)

Straight line up to 0.002 strain value and then parabolic up to failure
(c)

Parabolic up to 0.002 strain value and then uniform up to failure
(d)

Linear up to 0.002 strain value and then uniform up to failure
Answer:

Option (c)

10.

Maximum strain in concrete at failure is

(a)

0.0035
(b)

0.002
(c)

0.035
(d)

0.02
Answer:

Option (a)

Showing 1 to 10 out of 20 Questions
1 2