A disc is a spinning with an angular velocity ω rad/s about the axis of spin. The couple applied to the disc causing precession will be (where I = Mass moment of inertia of the disc, and ωP = Angular velocity of precession of the axis of spin)

Theory of Machine
A disc is a spinning with an angular velocity ω rad/s about the axis of spin. The couple applied to the disc causing precession will be (where I = Mass moment of inertia of the disc, and ωP = Angular velocity of precession of the axis of spin)

I ω ωP

(1/2).Iω²

Iω²

(1/2). I ω ωP

I ω ωP

(1/2).Iω²

Iω²

(1/2). I ω ωP

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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

Meyer's expansion valve

Flywheel

D-slide valve

Governor

Meyer's expansion valve

Flywheel

D-slide valve

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Theory of Machine
A Hartnell governor has its controlling force (Fc) given by Fc = ar + b, where r is the radius of rotation and a and b are constants. The governor becomes isochronous when

a is +ve and b = 0

a is +ve and b is also +ve

a = 0 and b is +ve

a is +ve and b is -ve

a is +ve and b = 0

a is +ve and b is also +ve

a = 0 and b is +ve

a is +ve and b is -ve

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Theory of Machine
In locomotives, the ratio of the connecting rod length to me crank radius is kept very large in order to

To start the locomotive quickly

Minimize the effect of primary forces

Have perfect balancing

Minimize the effect of secondary forces

To start the locomotive quickly

Minimize the effect of primary forces

Have perfect balancing

Minimize the effect of secondary forces

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Theory of Machine
For dynamic balancing of a shaft

The net dynamic force acting on the shaft is equal to zero

The net couple due to the dynamic forces acting on the shaft is equal to zero

Both (A) and (B)

None of these

The net dynamic force acting on the shaft is equal to zero

The net couple due to the dynamic forces acting on the shaft is equal to zero

Both (A) and (B)

None of these

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Theory of Machine
Inertia force acts

Opposite to the direction of acceleration force

None of the listed here

Perpendicular to the acceleration force

Along the direction of acceleration force

Opposite to the direction of acceleration force

None of the listed here

Perpendicular to the acceleration force

Along the direction of acceleration force

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Theory of Machine

Theory of Machine A disc is a spinning with an angular velocity ω rad/s about the axis of spin. The couple applied to the disc causing precession will be (where I = Mass moment of inertia of the disc, and ωP = Angular velocity of precession of the axis of spin)

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 A Hartnell governor has its controlling force (Fc) given by Fc = ar + b, where r is the radius of rotation and a and b are constants. The governor becomes isochronous when

Theory of Machine In locomotives, the ratio of the connecting rod length to me crank radius is kept very large in order to

Theory of Machine For dynamic balancing of a shaft

Theory of Machine Inertia force acts

Theory of Machine
A disc is a spinning with an angular velocity ω rad/s about the axis of spin. The couple applied to the disc causing precession will be (where I = Mass moment of inertia of the disc, and ωP = Angular velocity of precession of the axis of spin)

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
A Hartnell governor has its controlling force (Fc) given by Fc = ar + b, where r is the radius of rotation and a and b are constants. The governor becomes isochronous when

Theory of Machine
In locomotives, the ratio of the connecting rod length to me crank radius is kept very large in order to

Theory of Machine
For dynamic balancing of a shaft

Theory of Machine
Inertia force acts