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) cosφ]/2

[(r² + R²) cosφ]/2

[(r + R) sinφ]/2

[(r² + R²) sinφ]/2

[(r + R) cosφ]/2

[(r² + R²) cosφ]/2

[(r + R) sinφ]/2

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Theory of Machine
The axis of precession is __________ to the plane in which the axis of spin is going to rotate.

None of these

Both A and B

Parallel

Perpendicular

None of these

Both A and B

Parallel

Perpendicular

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Theory of Machine
The radial distance from the top of a tooth to the bottom of a tooth in a meshing gear, is called

Dedendum

Working depth

Clearance

Addendum

Dedendum

Working depth

Clearance

Addendum

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Theory of Machine
The gear train usually employed in clocks is a

Differential gear

Simple gear train

Reverted gear train

Sun and planet gear

Differential gear

Simple gear train

Reverted gear train

Sun and planet gear

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Theory of Machine
The primary unbalanced force is maximum when the angle of inclination of the crank with the line of stroke is

0° and 90°

180° and 360°

0° and 180°

90° and 180°

0° and 90°

180° and 360°

0° and 180°

90° and 180°

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Theory of Machine
When a mass of a critically damped single degree of freedom system is deflected from its equilibrium position and released, then it will

Oscillate with increasing time period

Oscillate with decreasing amplitude

Return to equilibrium position without oscillation

Oscillate with constant amplitude

Oscillate with increasing time period

Oscillate with decreasing amplitude

Return to equilibrium position without oscillation

Oscillate with constant amplitude

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Theory of Machine

Theory of Machine The axis of precession is __________ to the plane in which the axis of spin is going to rotate.

Theory of Machine The radial distance from the top of a tooth to the bottom of a tooth in a meshing gear, is called

Theory of Machine The gear train usually employed in clocks is a

Theory of Machine The primary unbalanced force is maximum when the angle of inclination of the crank with the line of stroke is

Theory of Machine When a mass of a critically damped single degree of freedom system is deflected from its equilibrium position and released, then it will

Theory of Machine
The axis of precession is __________ to the plane in which the axis of spin is going to rotate.

Theory of Machine
The radial distance from the top of a tooth to the bottom of a tooth in a meshing gear, is called

Theory of Machine
The gear train usually employed in clocks is a

Theory of Machine
The primary unbalanced force is maximum when the angle of inclination of the crank with the line of stroke is

Theory of Machine
When a mass of a critically damped single degree of freedom system is deflected from its equilibrium position and released, then it will