e

Question 1

It is the measure of its ability to produce turning, twisting or rotation about the axis.

Answer 1

The moment of a force about an axis or line

Question 2

It is perpendicular to a plane containing the line of action of the force and is defined as the product of the force and the perpendicular distance from the axis to the line of action of the force.

Answer 2

The magnitude of the moment of a force about an axis

Question 3

It states that if we have two or more concurrent forces, the sum of the moments that each force creates about a single point will be equal to the moment created by the sum of those forces about the same point.

Answer 3

Varignon’s Theorem

Question 4

It states that the condition of equilibrium or uniform motion of rigid body will remain unchanged if the point of application of a force acting on a rigid body is transmitted to act at any other point along its line of action.

Answer 4

Principle of Transmissibility of Force

Question 5

A moment of a force becomes zero if either:
The center of moment is on the action line of the force, i.e., d = 0
The magnitude of the force is zero.

Answer 5

u

Question 6

What does the moment of force produces

Answer 6

Turning
Twisting
Rotation about the axis

Question 7

Classification of Mechanics

Answer 7

Mechanics of Rigid Bodies
Mechanics of Fluids
Mechanics of Deformable Bodies

Question 8

Mechanics of Rigid bodies

Answer 8

Static
Dynamic

Question 9

Classification of Dynamics

Answer 9

Kinetics
Kinematics

Question 10

The study of the effect of force system acting on a particle or rigid body which is at rest.

Answer 10

Statics

Question 11

The study of effect of force system acting on a particle or a rigid body which is in motion. It can also be stated as the study of geometry of motion with or without reference to the cause of motion

Answer 11

Dynamics

Question 12

It is a matter having considerable mass but negligible dimension. A body whose shape and size are not considered in the analysis of the problem and all the forces acting on a given body is assumed to act at a single point is considered to be a particle.

Answer 12

Particle

Question 13

It is a matter having considerable mass as well as dimension. Defined as a body in which the particle does not change the relative position whatever large force may be applied. A body which is capable to withstand its shape and size and does not deform under the action of forces is termed as?

Answer 13

Rigid body

Question 14

A body in motion has a tendency to remain in motion, which is also known as?

Answer 14

PROPERTY OF INERTIA

Question 15

An external agency which changes or tends to change the state of rest or of uniform motion of a body upon which it acts is known as force.

Answer 15

Force

Question 16

Force required to produce an acceleration of 1m/s2 in a body of mass 1 kg. F = mass x acceleration ; 1 N = 1 kg x 1 m/s2

Answer 16

1 Newton Force

Question 17

CHARACTERISTIC OF FORCE :

Answer 17

Magnitude
Direction (Line of action and sense)
Point of application

Question 18

It is a result of the action of one body on another body. May be contact force or non-contact force.

Answer 18

force

Question 19

Types of forces

Answer 19

Weight
Resultant Force
Equilibrant Force
Friction Force
Resistance Force
Spring Force
Tensile Force
Compressive Force

Question 20

If two forces acting simultaneously on a body at a point are represented in magnitude and direction by two adjacent sides are parallelogram, then their resultant is represented in magnitude and direction by the diagonal of parallelogram.

Answer 20

Law of Parallelogram of Force

Question 21

when the number of forces act simultaneously on a body.

Answer 21

Force System

Question 22

if the line of action of all the forces in the system lies on the same plane.

Answer 22

Coplanar Force System

Question 23

if the line of all the forces in the system do not lie on the same plane.

Answer 23

Non-coplanar Force System

Question 24

Subclassification of Coplanar and Non-Coplanar
Concurrent Force System – if the line of action of all the forces in the system passes through single point.
Parallel Force System – if the line of action of all forces in the system are parallel to each other. Can be subclassified into like and unlike.

Answer 24

b

Question 25

Types of imperfect truss

Answer 25

Imperfect Deficient Truss (Lack of members)
Imperfect redundant truss (many members)

Question 26

Unit of Force

Answer 26

Newton, Lb

Question 27

It is the sketch of the body showing active and reactive forces that acts on it after removing all suppprts

Answer 27

Free Body Diagram

Question 28

Forces which when applied to a body acted by the concurrent force system keeps the body in equilibrium

Answer 28

Equilibrant

Question 29

Types of Support

Answer 29

Roller Support (1reaction)
Hinge Support (2reaction)
Fixed Support (3reaction)

Question 30

Unit of point load

Answer 30

Newton, lb

Question 31

Types of Beam

Answer 31

Simply supported beam
Simply supported beam with overhang
Cantilever beam
Continuous Beam

Question 32

Types of load

Answer 32

Point load (concentrated load)
Uniformly Distributed load
Uniformly Varying load