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Strength of Materials Quiz

Total questions: 20

Worksheet time: 16mins

Name
Class
Date
1.

What is the unit of stress?

a)

KPa

b)

N/m

c)

Pa/s

d)

mm²/N

2.

Hooke's Law states that:

a)

Stress ∝ Strain

b)

Stress ∝ Load

c)

Stress ∝ Elastic Limit

d)

Stress = Constant

3.

The point beyond which a material does not return to its original shape is called:

a)

Yield Point

b)

Ultimate Point

c)

Elastic Limit

d)

Breaking Point

4.

Which is NOT a type of stress?

a)

Tensile

b)

Compressive

c)

Shear

d)

Plastic

5.

In stress-strain curve of mild steel, the yield point occurs:

a)

Before elastic limit

b)

After elastic limit

c)

At fracture point

d)

At ultimate stress

6.

Which relation between elastic constants is correct?

a)

E = 2G(1+μ)

b)

G = 3K(1-2μ)

c)

K = E/3(1+μ)

d)

E = G + K

7.

Thermal stress occurs when:

a)

Free expansion is allowed

b)

Expansion is fully restrained

c)

Temperature is constant

d)

Material is elastic

8.

Principal stresses act on:

a)

Inclined planes

b)

Principal planes

c)

Neutral axis

d)

Yield planes

9.

Mohr's Circle is used to determine:

a)

Shear force

b)

Deflection

c)

Stress distribution

d)

Elastic constant

10.

Which constant is also called modulus of rigidity?

a)

E

b)

K

c)

G

d)

μ

11.

Which of the following is NOT a type of beam?

a)

Cantilever

b)

Fixed beam

c)

Overhanging beam

d)

Curved beam

12.

In a simply supported beam with a central point load, maximum bending moment occurs at:

a)

Supports

b)

Mid-span

c)

Quarter span

d)

Nowhere

13.

For a cantilever carrying point load at free end, shear force diagram is:

a)

Constant throughout

b)

Triangular

c)

Parabolic

d)

Zero

14.

For a simply supported beam of span L with UDL w, maximum bending moment is:

a)

wL/2

b)

wL²/8

c)

wL²/2

d)

wL³/48

15.

Deflection of beams is measured in:

a)

Degrees

b)

mm

c)

N/m

d)

radians

16.

For a simply supported beam with a point load at one end, the maximum bending moment is:

a)

0

b)

PL/4

c)

PL/2

d)

PL²/6

17.

Which of the following is a type of loading on beams?

a)

Impact

b)

Dynamic

c)

All of the above

d)

Static

18.

What is the primary purpose of a shear force diagram?

a)

To illustrate bending moments

b)

To represent internal forces

c)

To calculate stress

d)

To show deflection

19.

Which of the following materials is typically used for high-strength beams?

a)

Steel

b)

Concrete

c)

Plastic

d)

Wood

20.

What type of loading is represented by a uniformly distributed load (UDL)?

a)

Concentrated load

b)

Variable load

c)

Dynamic load

d)

Static load