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THEORY OF STRUCTURES III

Total questions: 21

Worksheet time: 4mins

Name
Class
Date
1.

Rotational effect of force is called

a)

Momentum

b)

Movement

c)

Rotor

d)

Moment

2.

When a material is loaded within elastic limit, the material will regain its shape and size when the load is removed.

a)

Agree

b)

Disagree

3.

The bending stress in a beam is __________ bending moment

a)

equal to

b)

less than

c)

more than

d)

directly proportional to

4.

When a bar is subjected to a change of temperature and its deformation is prevented, the stress induced in the bar is

a)

tensile stress

b)

compressive stress

c)

shear stress

d)

thermal stress

5.

The ratio of stress and strain is known as

a)

Modulus of elasticity

b)

Young's modulus

c)

Both a. and b.

d)

None of the above

6.

A rigid body has Poisson's ratio equal to

a)

0

b)

1

c)

less than 1

d)

greater than one

7.

Two parallel, equal and opposite forces acting tangentially to the surface of the body is called as

a)

Complementary stress

b)

Compressive stress

c)

Shear stress

d)

Tensile stress

8.

Which stress is induced in a member, when expansion or contraction due to temperature variation is prevented?

a)

Compressive stress

b)

Tensile stress

c)

Thermal stress

d)

None of the above

9.

The beam having one end free and one end fixed is called as

a)

Cantilever beam

b)

Continuous beam

c)

Overhang beam

d)

Simply supported beam

10.

You push your finger into a ball of play-doh and it keeps its new shape. This is an example of

a)

elasticity

b)

plasticity

c)

hardness

d)

tensile strength

11.

Name the following mechanical property

a)

shear

b)

torsional

c)

compressional

d)

tensional

12.

Name the following mechanical property

a)

Shear

b)

compressional

c)

torsional

d)

tensional

13.

When tensile stress is applied axially on a circular rod its

a)

diameter decreases and length increases

b)

diameter decreases

c)

length increases

14.

Strain is a dimensionless quantity.

a)

True

b)

False

15.

Shear stress causes

a)

Elongation

b)

Distortion

c)

Deformation

d)

Displacement

16.

What is the unit for stress?

a)

N/m2

b)

Nm

c)

N/m

d)

Nm2

17.

The deformation per unit length is called

a)

Strain

b)

Stress

c)

Bulk modulus

d)

Elasticity

18.

The ability of the material to deform without breaking is called

a)

Elasticity

b)

Creep

c)

Plasticity

d)

Brittle

19.

The limit beyond which the material does not behave elastically is known as

a)

Proportional limit

b)

Elastic limit

c)

Plastic limit

d)

Yield point

20.

The length of a wire is increased by 1 mm on the application of a certain load. In a wire of the same material but of twice the length and half the radius, the same force will produce an elongation of

a)

0.5mm

b)

2mm

c)

4mm

d)

8mm

21.

In a composite body, consisting of two different materials………..will be same in both materials.

a)

Stress

b)

Strain

c)

Both of the above

d)

None of these