When the addenda on pinion and wheel is such that the path of approach and path of recess are half of their maximum possible values, then the length of the path of contact is given by (where r = Pitch circle radius of pinion, R = Pitch circle radius of wheel, and φ = Pressure angle)

Theory of Machine
When the addenda on pinion and wheel is such that the path of approach and path of recess are half of their maximum possible values, then the length of the path of contact is given by (where r = Pitch circle radius of pinion, R = Pitch circle radius of wheel, and φ = Pressure angle)

[(r + R) sinφ]/2

[(r² + R²) cosφ]/2

[(r² + R²) sinφ]/2

[(r + R) cosφ]/2

[(r + R) sinφ]/2

[(r² + R²) cosφ]/2

[(r² + R²) sinφ]/2

[(r + R) cosφ]/2

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Theory of Machine
A chain comprises of 5 links having 5 joints. Is it kinematic chain?

Data are insufficient to determine it

Yes

It is a marginal case

No

Data are insufficient to determine it

Yes

It is a marginal case

No

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Theory of Machine
The acceleration of a particle at any instant has two components i.e. radial component and tangential component. These two components will be

Perpendicular to each other

Parallel to each other

Inclined at 45°

Opposite to each other

Perpendicular to each other

Parallel to each other

Inclined at 45°

Opposite to each other

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Theory of Machine
The contact ratio is given by

(Length of path of recess)/(Circular pitch)

(Length of the arc of contact)/(Circular pitch)

(Length of the arc of approach)/cosφ

(Length of the path of approach)/(Circular pitch)

(Length of path of recess)/(Circular pitch)

(Length of the arc of contact)/(Circular pitch)

(Length of the arc of approach)/cosφ

(Length of the path of approach)/(Circular pitch)

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Theory of Machine
When a shaking force is transmitted through the springs, damping becomes detrimental when the ratio of its frequency to the natural frequency is greater than

0.5

1

0.25

2

0.5

1

0.25

2

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Theory of Machine
In S.H.M., acceleration is proportional to

Velocity

Rate of change of velocity

Displacement

All of these

Velocity

Rate of change of velocity

Displacement

All of these

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Theory of Machine

Theory of Machine A chain comprises of 5 links having 5 joints. Is it kinematic chain?

Theory of Machine The acceleration of a particle at any instant has two components i.e. radial component and tangential component. These two components will be

Theory of Machine The contact ratio is given by

Theory of Machine When a shaking force is transmitted through the springs, damping becomes detrimental when the ratio of its frequency to the natural frequency is greater than

Theory of Machine In S.H.M., acceleration is proportional to

Theory of Machine
A chain comprises of 5 links having 5 joints. Is it kinematic chain?

Theory of Machine
The acceleration of a particle at any instant has two components i.e. radial component and tangential component. These two components will be

Theory of Machine
The contact ratio is given by

Theory of Machine
When a shaking force is transmitted through the springs, damping becomes detrimental when the ratio of its frequency to the natural frequency is greater than

Theory of Machine
In S.H.M., acceleration is proportional to