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 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
Q122.
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.
Q123.
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
Q124.
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
Q125.
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).
Q126.
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
Q127.
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
Q128.
The force acting on a point on the surface of a rigid body may be considered to act

a.

at the centre of gravity of the body

b.

on the periphery of the body

c.

on any point on the line of action of the force

d.

at any point on the surface normal to the line of action of the force.

Discuss
Answer: (c).on any point on the line of action of the force
Q129.
A satellite is said to move in a synchronous orbit if it moves at an altitude of 36, 000 km with a maximum velocity of about

a.

7000 km per hour

b.

8000 km per hour

c.

9000 km per hour

d.

11, 000 km per hour.

Discuss
Answer: (d).11, 000 km per hour.
Q130.
Two shots fired simultaneously from the top and bottom of a vertical tower with elevations of 30° and 45° respectively strike a target simultaneously. If horizontal distance of the target from the tower is 1000 m, the height of the tower is

a.

350 m

b.

375 m

c.

400 m

d.

425 m.

Discuss
Answer: (d).425 m.
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