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 12 of 26

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Q111.
Time required to stop a car moving with a velocity 20 m/sec within a distance of 40 m, is

a.

2 sec

b.

3 sec

c.

4 sec

d.

5 sec

Discuss
Answer: (c).4 sec
Q112.
The characteristic of a couple, is :

a.

algebraic sum of forces, constituting a couple is zero

b.

algebraic sum of moments of forces, constituting a couple, about any poin, is same

c.

a couple can be balanced only by a couple but of opposite sense

d.

all the above.

Discuss
Answer: (d).all the above.
Q113.
If two forces P and Q (P > Q) act on the same straight line but in opposite direction, their resultant, is

a.

P + Q

b.

P/Q

c.

Q/P

d.

P - Q

Discuss
Answer: (d).P - Q
Q114.
If the angle between the applied force and the direction of motion of a body, is between 90° and 180°, the work done, is called

a.

virtual work

b.

imaginary work

c.

zero work

d.

negative work.

Discuss
Answer: (d).negative work.
Q115.
The units of moment of inertia of an area, are

a.

kg/m

b.

kg/m²

c.

m⁴

d.

m³

Discuss
Answer: (c).m⁴
Q116.
To avoid bending action at the base of a pier,

a.

suspension and anchor cables are kept at the same level

b.

suspension and anchor cables are fixed to pier top

c.

suspension cable and anchor cables are attached to a saddle mounted on rollers on top of the pier

d.

none the these.

Discuss
Answer: (b).suspension and anchor cables are fixed to pier top
Q117.
Lami's theroem states that

a.

three forces acting at a point are always in equilibrium

b.

if three forces acting on a point can be represented in magnitude and direction by the sides of a triangle, the point will be in the state of equilibrium

c.

three coplaner forces acting at a point will be in equilibrium, if each force is proportional to the sine of the angle between the other two

d.

three coplaner forces acting at a point will be in equilibrium if each force is inversely proportional to the sine of the angle between the other two

Discuss
Answer: (c).three coplaner forces acting at a point will be in equilibrium, if each force is proportional to the sine of the angle between the other two
Q118.
Pick up the incorrect statement from the following. In case of suspension bridge due to rise in temperature,

a.

dip of the cable increases

b.

length of the cable increases

c.

dip of the cable decreases

d.

none of the these.

Discuss
Answer: (c).dip of the cable decreases
Q119.
If two forces acting at a point are in equilibrium, they must be equal in magnitude and their line of action must be along

a.

the same line in the same sense

b.

the same line in opposite sense

c.

the perpendicular to both the lines

d.

none of these.

Discuss
Answer: (b).the same line in opposite sense
Q120.
For lifting a load of 50 kg through a distance of 2.5 cm, an effort of 12.5 kg is moved through a distance of 40 cm. The efficiency of the lifting machine, is

a.

60%

b.

65%

c.

70%

d.

75%.

Discuss
Answer: (d).75%.
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