Strength of Materials MCQs Set-2

Page 1 of 4

1.

Strain energy is the

energy stored in a body when strained within elastic limits

maximum strain energy which can be stored in a body

proof resilience per unit volume of a material

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

2.

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

3.

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

Shear strain

None of these

Lateral strain

Volumetric strain

4.

The neutral axis in curved beams

does not coincide

coincides with the geometric axis

lies at the bottom of the beam

lies at the top of the beam

5.

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

under the load only

always at the mid span

at a support

none of these

6.

The thermal stress in a bar is directly proportional to

none of these

its volume

its cross-sectional area

the change in temperature

7.

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

One-fourth

Half

Same amount

Double

8.

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

less

unpredictable

more

same

9.

The volumetric strain is the ratio of the

change in thickness to the original thickness

original thickness to the change in thickness

change in volume to the original volume

original volume to the change in volume

10.

Which of the following are statically indeterminate beams?

Both (a) and (b)

None of these

b) Continuous beam

a) Fixed beam

Page 2 of 4

11.

A beam is said to be uniform strength if

the shear stress is the same throughout the beam

every horizontal plane

the deflection is the same throughout the beam

the bending moment is the same throughout the beam

12.

In curved beams the distribution of bending stress is

Parabolic

Uniform

Hyperbolic

Linear

13.

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

shear strain

linear strain

lateral strain

volumetric strain

14.

The total strain energy stored in a body is termed as

modulus of resilience

resilience

impact energy

proof resilience

15.

The hoop stresses are acting across the

none of these

circumferential section

longitudinal section

radial section

16.

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

none of these

unity

infinity

zero

17.

The state of pure shear stress is produced by

equal tension in two directions at right angles

none of these

equal compression in two directions at right angles

tension in one direction and equal compression in perpendicular direction

18.

The shear stress at the centre of a circular shaft

minimum

zero

maximum

unpredictable

19.

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

maximum principal stress

maximum shear stress

maximum shear strain energy

maximum strain energy

20.

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

no stresses

tensile stresses

thermal stresses

compressive stresses

Page 3 of 4

21.

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

Young's modulus

Strain

None of these

Stress

22.

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

arc of a circle

quadratic parabola

cubic parabola

catenary

23.

Proof stress is related to

elongation

yielding

fracture

necking

24.

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

Proof resilience

None of these

Modulus of elasticity

Resilience

25.

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

four

two

six

three

26.

Where are the steel bars in a concrete beam embedded?

Near top section

Near bottom section

Uniformly

In the centre

27.

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

Lateral

Volumetric

Linear

Shear

28.

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

Bending

No stress

thermal stresses

Tensile stress

29.

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

Lead

Cast iron

Wood

Concrete

30.

The area under the stress-strain curve represents

toughness of material

hardness of material

breaking strength of material

energy required to cause failure

Page 4 of 4

31.

Principle planes are planes having

minimum shear stress

maximum shear stress

none of these

no shear stress

32.

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

impact energy

modulus of resilience

resilience

proof resilience

33.

Stress at the boundary of kern

maximum

zero

any value

minimum

34.

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

malleability

resilience

toughness

ductility

35.

Neutral plane of a beam

Is one whose length remains unchanged during the deformation

Passes through the CG

Lies at bottom most fibre

None of these

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