The efficiency of a lifting machine is the ratio of

Engineering Mechanics
The efficiency of a lifting machine is the ratio of

Output to the input

All of these

Work done by the machine to the work done on the machine

Mechanical advantage to the velocity ratio

Output to the input

All of these

Work done by the machine to the work done on the machine

Mechanical advantage to the velocity ratio

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Engineering Mechanics
The unit of moment of inertia of an area is

kg/m2

kg-m-s2

kg-m2

m4

kg/m2

kg-m-s2

kg-m2

m4

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Engineering Mechanics
The moment of a force

Is the turning effect produced by a force, on the body, on which it acts

All of these

Is equal to the product of force acting on the body and the perpendicular distance of a point and the line of action of the force

Is equal to twice the area of the triangle, whose base is the line representing the force and whose vertex is the point, about which the moment is taken

Is the turning effect produced by a force, on the body, on which it acts

All of these

Is equal to the product of force acting on the body and the perpendicular distance of a point and the line of action of the force

Is equal to twice the area of the triangle, whose base is the line representing the force and whose vertex is the point, about which the moment is taken

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Engineering Mechanics
If ‘P’ is the force acting on the body, ‘m’ is the mass of the body and ‘a’ is the acceleration of the body, then according to Newton's second law of motion,

P - m.a = 0

P + m.a = 0

P/m.a = 0

P × m.a = 0

P - m.a = 0

P + m.a = 0

P/m.a = 0

P × m.a = 0

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Engineering Mechanics
The algebraic sum of the resolved parts of a number of forces in a given direction is equal to the resolved part of their resultant in the same direction. This is known as

None of these

Principle of independence of forces

Principle of resolution of forces

Principle of transmissibility of forces

None of these

Principle of independence of forces

Principle of resolution of forces

Principle of transmissibility of forces

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Engineering Mechanics
In order to completely specify angular displacement by a vector, it must fix

Sense of angular displacement

Direction of the axis of rotation

Magnitude of angular displacement

All of these

Sense of angular displacement

Direction of the axis of rotation

Magnitude of angular displacement

All of these

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Engineering Mechanics

Engineering Mechanics The efficiency of a lifting machine is the ratio of

Engineering Mechanics The unit of moment of inertia of an area is

Engineering Mechanics The moment of a force

Engineering Mechanics If ‘P’ is the force acting on the body, ‘m’ is the mass of the body and ‘a’ is the acceleration of the body, then according to Newton's second law of motion,

Engineering Mechanics The algebraic sum of the resolved parts of a number of forces in a given direction is equal to the resolved part of their resultant in the same direction. This is known as

Engineering Mechanics In order to completely specify angular displacement by a vector, it must fix

Engineering Mechanics
The efficiency of a lifting machine is the ratio of

Engineering Mechanics
The unit of moment of inertia of an area is

Engineering Mechanics
The moment of a force

Engineering Mechanics
If ‘P’ is the force acting on the body, ‘m’ is the mass of the body and ‘a’ is the acceleration of the body, then according to Newton's second law of motion,

Engineering Mechanics
The algebraic sum of the resolved parts of a number of forces in a given direction is equal to the resolved part of their resultant in the same direction. This is known as

Engineering Mechanics
In order to completely specify angular displacement by a vector, it must fix