Strength of Materials MCQs Set-2

Page 1 of 4

1.

If a material expands freely due to heating, it will develop

no stresses

tensile stresses

thermal stresses

compressive stresses

2.

The area under the stress-strain curve represents

toughness of material

energy required to cause failure

hardness of material

breaking strength of material

3.

If a material expands freely due to heating, it will develop

Bending

thermal stresses

Tensile stress

No stress

4.

The strain energy stored by the body within elastic limit when loaded externally is called as

Resilience

Modulus of elasticity

Proof resilience

None of these

5.

Where are the steel bars in a concrete beam embedded?

Near top section

Near bottom section

In the centre

Uniformly

6.

A prismatic bar when subjected to pure bending assumes the shape of

quadratic parabola

cubic parabola

arc of a circle

catenary

7.

A beam is said to be uniform strength if

the shear stress is the same throughout the beam

the bending moment is the same throughout the beam

the deflection is the same throughout the beam

every horizontal plane

8.

In curved beams the distribution of bending stress is

Hyperbolic

Parabolic

Uniform

Linear

9.

When a beam is loaded the horizontal or longitudinal shear should be accounted for materials like

Concrete

Lead

Cast iron

Wood

10.

According to Rankin's hypothesis, the criterion of failure of a brittle material is

maximum shear stress

maximum shear strain energy

maximum principal stress

maximum strain energy

Page 2 of 4

11.

The maximum bending moment due to a moving load on a fixed ended beam occurs

none of these

at a support

always at the mid span

under the load only

12.

The ultimate tensile stress of mild steel compared to ultimate compressive stress is

less

same

unpredictable

more

13.

For a linearly elastic, isotropic and homogeneous material the number of elastic constants require to relate stress and strain is

two

six

three

four

14.

The maximum strain energy that can be stored in a body is known as

resilience

proof resilience

modulus of resilience

impact energy

15.

The volumetric strain is the ratio of the

original thickness to the change in thickness

original volume to the change in volume

change in volume to the original volume

change in thickness to the original thickness

16.

___________strain is the deformation of the bar per unit length in the direction of the force.

Shear

Lateral

Volumetric

Linear

17.

Principle planes are planes having

no shear stress

none of these

minimum shear stress

maximum shear stress

18.

The thermal stress in a bar is directly proportional to

none of these

its volume

its cross-sectional area

the change in temperature

19.

The shear stress at the centre of a circular shaft

maximum

minimum

unpredictable

zero

20.

The hoop stresses are acting across the

longitudinal section

circumferential section

radial section

none of these

Page 3 of 4

21.

Neutral plane of a beam

Is one whose length remains unchanged during the deformation

None of these

Passes through the CG

Lies at bottom most fibre

22.

The deformation of the bar per unit length in the direction of the force is known as

volumetric strain

linear strain

shear strain

lateral strain

23.

Strain energy is the

proof resilience per unit volume of a material

energy stored in a body when strained within elastic limits

energy stored in a body when strained upto the breaking of a specimen

maximum strain energy which can be stored in a body

24.

Proof stress is related to

elongation

yielding

fracture

necking

25.

Strain in a direction at right angle to the direction of applied force is known as

None of these

Lateral strain

Shear strain

Volumetric strain

26.

Which of the following are statically indeterminate beams?

None of these

b) Continuous beam

a) Fixed beam

Both (a) and (b)

27.

Young's modulus of a wire is defined as the stress which will increase the length of wire compared to its original length by

Double

Same amount

One-fourth

Half

28.

The unit of Young's modulus is same as that of

Stress

Young's modulus

Strain

None of these

29.

Young's modulus of elasticity for a perfectly rigid body is

zero

unity

none of these

infinity

30.

Stress at the boundary of kern

maximum

any value

minimum

zero

Page 4 of 4

31.

The state of pure shear stress is produced by

equal compression in two directions at right angles

none of these

tension in one direction and equal compression in perpendicular direction

equal tension in two directions at right angles

32.

The total strain energy stored in a body is termed as

impact energy

proof resilience

modulus of resilience

resilience

33.

The strain energy stored in a body due to external loading, within the elastic limit is known as

resilience

toughness

malleability

ductility

34.

The neutral axis in curved beams

lies at the bottom of the beam

lies at the top of the beam

coincides with the geometric axis

does not coincide

35.

The maximum bending moment due to a moving load on a simply supported beam, occurs

anywhere on the beam

at the supports

under the load

at the mid span

Strength of Materials MCQs Set-2

Related

Leave a ReplyCancel reply

Secured Payments

Protection

Strength of Materials MCQs Set-2

Share this Now with Friends:

Related

Leave a ReplyCancel reply

Secured Payments

Protection