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)

[(r² + R²) sinφ]/2

[(r + R) sinφ]/2

[(r² + R²) cosφ]/2

[(r + R) cosφ]/2

[(r² + R²) sinφ]/2

[(r + R) sinφ]/2

[(r² + R²) cosφ]/2

[(r + R) cosφ]/2

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Theory of Machine
The equivalent length of a simple pendulum which gives the same frequency as a compound pendulum is

(kG² + h²)/h²

h²/(kG² + h²)

h/(kG² + h²)

(kG² + h²)/h

(kG² + h²)/h²

h²/(kG² + h²)

h/(kG² + h²)

(kG² + h²)/h

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Theory of Machine
When the axes of the first and last wheels are coaxial, then the train is known as

Simple train of wheels

Epicyclic gear train

Reverted gear train

Compound train of wheels

Simple train of wheels

Epicyclic gear train

Reverted gear train

Compound train of wheels

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Theory of Machine
In a mechanism, usually one link is fixed. If the fixed link is changed in a kinematic chain, then relative motion of other links

Will remain same

Will not occur

Will change

Could change or remain unaltered depending on which link is fixed

Will remain same

Will not occur

Will change

Could change or remain unaltered depending on which link is fixed

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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

Opposite to each other

Perpendicular to each other

Inclined at 45°

Parallel to each other

Opposite to each other

Perpendicular to each other

Inclined at 45°

Parallel to each other

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Theory of Machine
When a point at the end of a link moves with constant angular velocity, its acceleration will have

Coriolis component only

Radial component only

Radial and tangential components both

Tangential component only

Coriolis component only

Radial component only

Radial and tangential components both

Tangential component only

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Theory of Machine

Theory of Machine The equivalent length of a simple pendulum which gives the same frequency as a compound pendulum is

Theory of Machine When the axes of the first and last wheels are coaxial, then the train is known as

Theory of Machine In a mechanism, usually one link is fixed. If the fixed link is changed in a kinematic chain, then relative motion of other links

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 When a point at the end of a link moves with constant angular velocity, its acceleration will have

Theory of Machine
The equivalent length of a simple pendulum which gives the same frequency as a compound pendulum is

Theory of Machine
When the axes of the first and last wheels are coaxial, then the train is known as

Theory of Machine
In a mechanism, usually one link is fixed. If the fixed link is changed in a kinematic chain, then relative motion of other links

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
When a point at the end of a link moves with constant angular velocity, its acceleration will have