Applied Mechanics MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Applied Mechanics, 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 Applied Mechanics 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 Applied Mechanics mcq questions that explore various aspects of Applied Mechanics problems. Each MCQ is crafted to challenge your understanding of Applied Mechanics 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 Applied Mechanics 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 Applied Mechanics. 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 Applied Mechanics knowledge to the test? Let's get started with our carefully curated MCQs!

Applied Mechanics MCQs | Page 16 of 26

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Q151.
The maximum frictional force which comes into play, when a body just begins to slide over the surface of a an other body, is known

a.

sliding friction

b.

rolling friction

c.

limiting friction

d.

none of these.

Discuss
Answer: (c).limiting friction
Q152.
Newtons's Law of Motion is :

a.

Every body continues in its state of rest or of uniform motion, in a straight line, unless it is acted upon by some external force

b.

The rate of change of momentum is directly proportional to the impressed force, and takes place in the same direction, in which the force acts

c.

To every action, there is always an equal and opposite reaction

d.

All the above.

Discuss
Answer: (d).All the above.
Q153.
The equation of motion of a particle starting from rest along a straight line is x = t³ - 3l² + 5. The ratio of the velocities after 5 sec and 3 sec will be

a.

2

b.

3

c.

4

d.

5

Discuss
Answer: (d).5
Q154.
The moment of inertia of a hollow circular section whose external diameter is 8 cm and internal diameter is 6 cm, about centroidal axis, is

a.

437.5 cmโด

b.

337.5 cmโด

c.

237.5 cmโด

d.

137.5 cmโด

Discuss
Answer: (d).137.5 cmโด
Q155.
The resultant of two forces acting at right angles is โˆš34 kg and acting at 60° is 70 kg. The forces are

a.

1 kg and 4 kg

b.

2 kg and 3 kg

c.

3 kg and โˆš5 kg

d.

3 kg and 5 kg.

Discuss
Answer: (d).3 kg and 5 kg.
Q156.
Two particles have been projected at angles 64° and 45° to the horizontal. If the velocity of projection of first is 10 m/sec, the velocity of projection of the other for equal horizontal ranges is

a.

9.3 m/sec

b.

8.3 m/sec

c.

7.3 m/sec

d.

6.3 m/sec.

Discuss
Answer: (a).9.3 m/sec
Q157.
ฮผ is coefficient of friction. A wheeled vehicle travelling on a circular level track will slip and overturn simultaneously if the ratio of its wheel distance to the height of its centroid, is

a.

ฮผ

b.

2ฮผ

c.

3ฮผ

d.

1/2ฮผ

Discuss
Answer: (b).2ฮผ
Q158.
The necessary condition of equilibrium of a body, is :

a.

algebraic sum of horizontal components of all the forces must be zero

b.

algebraic sum of vertical components of all the forces must be zero

c.

algebraic sum of the moments of the forces about a point must be zero

d.

all (a), (b) and (c).

Discuss
Answer: (d).all (a), (b) and (c).
Q159.
A marble ball is rolled on a smooth floor of a room to hit a wall. If the time taken by the ball in returning to the point of projection is twice the time taken in reaching the wall, the coefficient of restitution between the ball and the wall, is

a.

0.25

b.

0.50

c.

0.75

d.

1.0

Discuss
Answer: (b).0.50
Q160.
A number of forces acting simultaneously on a particle of a body

a.

may not be replaced by a single force

b.

may be replaced by a single force

c.

may be replaced by a single force through C.G. of the body

d.

may be replaced by a couple

Discuss
Answer: (b).may be replaced by a single force
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