Materials Strength MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Materials Strength, a fundamental topic in the field of Civil Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Materials Strength 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 Materials Strength mcq questions that explore various aspects of Materials Strength problems. Each MCQ is crafted to challenge your understanding of Materials Strength principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Civil Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Materials Strength MCQs are your pathway to success in mastering this essential Civil Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Materials Strength. 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 Materials Strength knowledge to the test? Let's get started with our carefully curated MCQs!

Materials Strength MCQs | Page 8 of 24

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Q71.
A cylinder is said to be thin if the ratio of its thickness and diameter, is less than

a.

1/25

b.

1/20

c.

1/15

d.

1/10

Discuss
Answer: (d).1/10
Q72.
The shear force on a simply supported beam is proportional to

a.

displacement of the neutral axis

b.

sum of the forces

c.

sum of the transverse forces

d.

algebraic sum of the transverse forces of the section

Discuss
Answer: (d).algebraic sum of the transverse forces of the section
Q73.
An arch with three hinges, is a structure

a.

statically determinate

b.

statically indeterminate

c.

geometrically unstable

d.

structurally sound but indeterminate

Discuss
Answer: (a).statically determinate
Q74.
Stress in members of statically determinate simple frames, can be determined by

a.

method of joints

b.

method of sections

c.

graphical solution

d.

all the above.

Discuss
Answer: (d).all the above.
Q75.
While testing a cast iron beam (2.5 cm x 2.5 cm) in section and a metre long simply supported at the ends failed when a 100 kg weight is applied at the centre. The maximum stress induced is :

a.

960 kg/cm²

b.

980 kg/cm²

c.

1000 kg/cm²

d.

1200 kg/cm².

Discuss
Answer: (a).960 kg/cm²
Q76.
The tensile force required to cause an elongation of 0.045 mm in a steel rod of 1000 mm length and 12 mm diameter, is (where E = 2 x 10⁶ kg/cm²)

a.

166 kg

b.

102 kg

c.

204 kg

d.

74 kg

Discuss
Answer: (b).102 kg
Q77.
According to Unwin's formula, the diameter d of a rivet of plate of thickness t is :

a.

d = 6.05 √t

b.

d = 1.5 t + 4

c.

d = √5 t

d.

d = √t + 1.5

Discuss
Answer: (a).d = 6.05 √t
Q78.
In a bar of large length when held vertically and subjected to a load at its lower end, its own-weight produces additional stress. The maximum stress will be

a.

at the lower cross-section

b.

at the built-in upper cross-section

c.

at the central cross-section

d.

at every point of the bar.

Discuss
Answer: (b).at the built-in upper cross-section
Q79.
If a shaft is simultaneously subjected to a toque T and a bending moment M, the ratio of maximum bending stress and maximum shearing stress is

a.

M/T

b.

T/M

c.

2M/T

d.

2T/M

Discuss
Answer: (c).2M/T
Q80.
Struts are load carrying members of a frame structure which are subjected to

a.

axial tension loads

b.

axial compressive loads

c.

torsional loads

d.

transverse loads.

Discuss
Answer: (b).axial compressive loads
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