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 29 of 44

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Q281.
When a bar of length l and diameter d is rigidly fixed at the upper end and hanging freely, then the total elongation produced in the bar due to its own weight is (where w = Weight per unit volume of the bar)

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (b).B
Q282.
When a rectangular bar of length l, breadth b and thickness t is subjected to an axial pull of P, then linear strain (ฮต) is given by (where E = Modulus of elasticity)

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q283.
When a body is subjected to bi-axial stress i.e. direct stresses (ฯƒx) and (ฯƒy) in two mutually perpendicular planes accompanied by a simple shear stress (ฯ„xy), then maximum normal stress is

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q284.
According to Euler's column theory, the crippling load for a column length (l) hinged at both ends, is

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q285.
The horizontal thrust offered by the retaining wall on the retained material is (where w = Specific weight of the retained material, h = height of retaining wall, and (ฯ†) = Angle of repose of the retained earth)

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (b).B
Q286.
The longitudinal stress in a riveted cylindrical shell of diameter (d), thickness (t) and subjected to an internal pressure (p) is

a.

pd/tศต

b.

pd/2tศต

c.

pd/4tศต

d.

pd/8tศต

Discuss
Answer: (c).pd/4tศต
Q287.
Two solid shafts 'A' and 'B' are made of the same material. The shaft 'A' is of 50 mm diameter and shaft 'B' is of 100 mm diameter. The strength of shaft 'B' is __________ as that of shaft A.

a.

one-half

b.

double

c.

four times

d.

eight times

Discuss
Answer: (d).eight times
Q288.
In calculating the strength of a riveted joint in tearing, shearing and crushing, the

a.

actual diameter of rivet is used

b.

actual diameter of hole drilled for rivet is used

c.

mean diameter of hole drilled and rivet is used

d.

smaller of the rivet diameter and hole diameter is used

Discuss
Answer: (b).actual diameter of hole drilled for rivet is used
Q289.
The tensile test is carried on __________ materials.

a.

ductile

b.

brittle

c.

malleable

d.

plastic

Discuss
Answer: (a).ductile
Q290.
If percentage elongation of a certain specimen made of a material 'A' under tensile test is 30% and the percentage elongation of a specimen with same dimensions made of another material 'B' is 40%, then material 'B' is more ductile than material 'A'.

a.

Correct

b.

Incorrect

c.

Can't say

d.

None of these

Discuss
Answer: (a).Correct
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