THEORY OF STRUCTURES QUIZ

The maximum magnitude of shear stress due to shear force F on a rectangular section of area A at the neutral axis, is

F/2A

3F/2A

F/A

2F/3A

TRUE ANSWER : ?
YOUR ANSWER : ?

The shape factor of standard rolled beam section varies from

1.30 to 1.40

1.20 to 1.30

1.10 to 1.20

1.40 to 1.50

TRUE ANSWER : ?
YOUR ANSWER : ?

The stiffness of the close coil helical spring is

d4N/4D3n

d4N/8D3n

4D3N/d4n

8D3N/d4n

TRUE ANSWER : ?
YOUR ANSWER : ?

The ratio of shear stress and shear strain of an elastic material, is

Shear Modulus

Modulus of Rigidity

Modulus of Elasticity

Both A. and B.

TRUE ANSWER : ?
YOUR ANSWER : ?

The maximum deflection due to a load W at the free end of a cantilever of length L and having flexural rigidity EI, is

WL3/2EI

WL²/3EI

WL3/3EI

WL²/2EI

TRUE ANSWER : ?
YOUR ANSWER : ?

A shaft subjected to a bending moment M and a torque T, experiences

Neither A nor B

Both A and B

Maximum shear stress = 16 T/πd³

Maximum bending stress = 32M/πd³

TRUE ANSWER : ?
YOUR ANSWER : ?

Gradually applied static loads do not change with time their

All of these

Direction

Point of application

Magnitude

TRUE ANSWER : ?
YOUR ANSWER : ?

A cantilever of length ‘L’ is subjected to a bending moment ‘M’ at its free end. If EI is the flexural rigidity of the section, the deflection of the free end, is

ML/EI

ML²/3EI

ML²/2EI

ML/2EI

TRUE ANSWER : ?
YOUR ANSWER : ?

Inertia of a rectangular section of width and depth about an axis passing the moment of through C.G. and parallel to its width is

BD²/6

BD³/12

BD³/6

B²D/6

TRUE ANSWER : ?
YOUR ANSWER : ?

Stress may be expressed in Newtons

Per centimetre square (N/cm²)

Per metre square (N/m2)

Per millimetre square (N/mm²)

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

↑