The displacement of the reciprocating roller follower, when it has contact with the straight flanks of the tangent cam, is given by (where r₁ = Minimum radius of the cam, r₂ = Radius of the roller follower, and θ = Angle turned by the cam from the beginning of the follower displacement)

Theory of Machine
The displacement of the reciprocating roller follower, when it has contact with the straight flanks of the tangent cam, is given by (where r₁ = Minimum radius of the cam, r₂ = Radius of the roller follower, and θ = Angle turned by the cam from the beginning of the follower displacement)

(r₁ - r₂) (1 - cosθ)

(r₁ - r₂) [(1 - cosθ)/cosθ]

(r₁ + r₂) (1 + cosθ)

(r₁ + r₂) [(1 - cosθ)/cosθ]

(r₁ - r₂) (1 - cosθ)

(r₁ - r₂) [(1 - cosθ)/cosθ]

(r₁ + r₂) (1 + cosθ)

(r₁ + r₂) [(1 - cosθ)/cosθ]

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Theory of Machine
When the load on the engine increases, it becomes necessary to increase the supply of working fluid and when the load decreases, less working fluid is required. The supply of the working fluid to the engine is controlled by a

Governor

Flywheel

Meyer's expansion valve

D-slide valve

Governor

Flywheel

Meyer's expansion valve

D-slide valve

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Theory of Machine
Pulley in a belt drive acts as

Cylindrical pair

Rolling pair

Sliding pair

Turning pair

Cylindrical pair

Rolling pair

Sliding pair

Turning pair

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Theory of Machine
The factional torque for square thread at the mean radius r while raising load W is given by

T = W.r tanα

T = W.r tan(φ - α)

T = W.r tan(φ + α)

T = W.r tanφ

T = W.r tanα

T = W.r tan(φ - α)

T = W.r tan(φ + α)

T = W.r tanφ

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Theory of Machine
The balancing weights are introduced in planes parallel to the plane of rotation of the disturbing mass. To obtain complete dynamic balance, the minimum number of balancing weights to be introduced in different planes is

2

1

4

3

2

1

4

3

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Theory of Machine
Which of the following statement is correct as regard to the difference between a machine and a structure?

A machine transforms the available energy into some useful work, whereas in a structure no energy is transformed into useful work

All of these

The parts of a machine move relative to one another, whereas the members of a structure do not move relative to one another

The links of a machine may transmit both power and motion, whereas the members of a structure transmit forces only

A machine transforms the available energy into some useful work, whereas in a structure no energy is transformed into useful work

All of these

The parts of a machine move relative to one another, whereas the members of a structure do not move relative to one another

The links of a machine may transmit both power and motion, whereas the members of a structure transmit forces only

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Theory of Machine

Theory of Machine When the load on the engine increases, it becomes necessary to increase the supply of working fluid and when the load decreases, less working fluid is required. The supply of the working fluid to the engine is controlled by a

Theory of Machine Pulley in a belt drive acts as

Theory of Machine The factional torque for square thread at the mean radius r while raising load W is given by

Theory of Machine The balancing weights are introduced in planes parallel to the plane of rotation of the disturbing mass. To obtain complete dynamic balance, the minimum number of balancing weights to be introduced in different planes is

Theory of Machine Which of the following statement is correct as regard to the difference between a machine and a structure?

Theory of Machine
When the load on the engine increases, it becomes necessary to increase the supply of working fluid and when the load decreases, less working fluid is required. The supply of the working fluid to the engine is controlled by a

Theory of Machine
Pulley in a belt drive acts as

Theory of Machine
The factional torque for square thread at the mean radius r while raising load W is given by

Theory of Machine
The balancing weights are introduced in planes parallel to the plane of rotation of the disturbing mass. To obtain complete dynamic balance, the minimum number of balancing weights to be introduced in different planes is

Theory of Machine
Which of the following statement is correct as regard to the difference between a machine and a structure?