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 13 of 26

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Q121.
The following is not a law of static friction :

a.

The force of friction always acts in a direction opposite to that in which the body tends to move

b.

The force of friction is dependent upon the area of contact

c.

The force of friction depends upon the roughness of the surface

d.

The magnitude of the limiting friction bears a constant ratio to the normal reaction between two surfaces.

Discuss
Answer: (a).The force of friction always acts in a direction opposite to that in which the body tends to move
Q122.
The velocity of a moving body, is

a.

a vector quantity

b.

a scalar quantity

c.

a scalar as well as a vector quantity

d.

none of these.

Discuss
Answer: (a).a vector quantity
Q123.
The resultant of the forces acting on a body will be zero if the body

a.

rotates

b.

moves with variable velocity in a straight line

c.

moves along a curved path

d.

does not move at all.

Discuss
Answer: (d).does not move at all.
Q124.
A ball moving with a velocity of 5 m/sec impinges a fixed plane at an angle of 45° and its direction after impact is equally inclined to the line of impact. If the coefficient of restitution is 0.5, the velocity of the ball after impact will be

a.

0.5 m/sec

b.

1.5 m/sec

c.

2.5 m/sec

d.

3.5 m/sec

Discuss
Answer: (c).2.5 m/sec
Q125.
A pilot flies a small plane in a vertical loop of radius r. At the top of its trajectory he experiences weightlessness. If the acceleration due to gravity is g, the speed of the plane at the top of its trajectory would be

a.

zero

b.

infinite

c.

√gr

d.

√2gr

Discuss
Answer: (c).√gr
Q126.
A Seconds pendulum executes

a.

0.5 beat per second

b.

1.0 beat per second

c.

2.0 beats per second

d.

2.5 beats per second

Discuss
Answer: (c).2.0 beats per second
Q127.
The following factor affects the orbit of a satellite up to an altitude of 720 km from the earth's surface

a.

uneven distribution of the gravitational field

b.

gravity of the sun and the moon

c.

aerodynamic forces

d.

none of these.

Discuss
Answer: (d).none of these.
Q128.
Newton's law of Collision of elastic bodies states that when two moving bodies collide each other, their velocity of separation

a.

is directly proportional to their velocity of approach

b.

is inversely proportional to their velocity of approach

c.

bears a constant ratio to their velocity of approach

d.

is equal to the sum of their velocities of approach.

Discuss
Answer: (c).bears a constant ratio to their velocity of approach
Q129.
Two forces of 6 Newtons and 8 Newtons which are acting at right angles to each other, will have a resultant of

a.

5 Newtons

b.

8 Newtons

c.

10 Newtons

d.

12 Newtons.

Discuss
Answer: (c).10 Newtons
Q130.
A projectile is fired with a velocity of 100.3 m/sec. at an elevation of 60°. The velocity attained by the projectile when it is moving at a height of 100 m, is

a.

70 m/sec.

b.

75 m/sec.

c.

80 m/sec.

d.

90 m/sec.

Discuss
Answer: (d).90 m/sec.
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