Strength of Materials MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Strength of Materials, a fundamental topic in the field of Mechanical Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Strength of Materials MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Strength of Materials mcq questions that explore various aspects of Strength of Materials problems. Each MCQ is crafted to challenge your understanding of Strength of Materials principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Mechanical Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Strength of Materials MCQs are your pathway to success in mastering this essential Mechanical Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Strength of Materials. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Strength of Materials knowledge to the test? Let's get started with our carefully curated MCQs!

Strength of Materials MCQs | Page 23 of 44

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Q221.
A square beam and a circular beam have the same length, same allowable stress and the same bending moment. The ratio of weights of the square beam to the circular beam is

a.

1/2

b.

1

c.

1/1.12

d.

1/2

Discuss
Answer: (c).1/1.12
Q222.
A thin cylindrical shell of diameter (d), length (l) and thickness (t)is subjected to an internal pressure (p). The hoop stress in the shell is

a.

pd/t

b.

pd/2t

c.

pd/4t

d.

pd/6t

Discuss
Answer: (b).pd/2t
Q223.
When a body is subjected to a direct tensile stress (ฯƒ) in one plane, then tangential or shear stress on an oblique section of the body inclined at an angle ฮธ to the normal of the section is

a.

ฯƒ sin 2ฮธ

b.

ฯƒ cos 2ฮธ

c.

ฯƒ/2 sin 2ฮธ

d.

ฯƒ/2 cos 2ฮธ

Discuss
Answer: (c).ฯƒ/2 sin 2ฮธ
Q224.
The maximum shear stress in a thin spherical shell subjected to an internal pressure (p) is zero.

a.

Yes

b.

No

c.

Can't say

d.

None of these

Discuss
Answer: (a).Yes
Q225.
The change in length due to a tensile or compressive force acting on a body is given by (where P = Tensile or compressive force acting on the body, l = Original length of the body, A = Cross-sectional area of the body, and E = Young's modulus for the material of the body)

a.

P.I.A/E

b.

PI/AE

c.

E/P.I.A

d.

AE/PI

Discuss
Answer: (b).PI/AE
Q226.
The assumption, generally, made in the theory of simple bending is that

a.

the beam material is perfectly homogenous and isotropic

b.

the beam material is stressed within its elastic limit

c.

the plane sections before bending remain plane after bending

d.

all of the above

Discuss
Answer: (d).all of the above
Q227.
The shear force of a cantilever beam of length l carrying a uniformly distributed load of w per unit length is __________ at the fixed end.

a.

zero

b.

wl/4

c.

wl/2

d.

wl

Discuss
Answer: (d).wl
Q228.
Modular ratio of the two materials is the ratio of

a.

linear stress to linear strain

b.

shear stress to shear strain

c.

their modulus of elasticities

d.

their modulus of rigidities

Discuss
Answer: (c).their modulus of elasticities
Q229.
The hoop stress in a thick cylindrical shell is maximum at the inner radius.

a.

True

b.

False

c.

Can't say

d.

None of these

Discuss
Answer: (a).True
Q230.
The bending moment at the free end of a cantilever beam is

a.

zero

b.

minimum

c.

maximum

d.

None of these

Discuss
Answer: (a).zero
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