In a cam drive with uniform velocity follower, the sharp corners of the displacement diagram are rounded off at the beginning and at the end of each stroke. This is done

Theory of Machine
In a cam drive with uniform velocity follower, the sharp corners of the displacement diagram are rounded off at the beginning and at the end of each stroke. This is done

Because of difficulty in manufacturing cam profile

Because the uniform velocity motion is a partial parabolic motion

Because of loose contact of follower with cam surface

In order to have acceleration in beginning and retardation at the end of stroke within the finite limits

Because of difficulty in manufacturing cam profile

Because the uniform velocity motion is a partial parabolic motion

Because of loose contact of follower with cam surface

In order to have acceleration in beginning and retardation at the end of stroke within the finite limits

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Theory of Machine
In gears, interference takes place when

Gears do not move smoothly in the absence of lubrication

Gear teeth are undercut

Pitch of the gears is not same

The tip of a tooth of a mating gear digs into the portion between base and root circles

Gears do not move smoothly in the absence of lubrication

Gear teeth are undercut

Pitch of the gears is not same

The tip of a tooth of a mating gear digs into the portion between base and root circles

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Theory of Machine
In a system subjected to damped forced vibrations, the ratio of maximum displacement to the static deflection is known as

Logarithmic decrement

Damping factor

Magnification factor

Critical damping ratio

Logarithmic decrement

Damping factor

Magnification factor

Critical damping ratio

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Theory of Machine
The instantaneous center of a rigid thin disc rolling on a plane rigid surface is located at

The center of the disc

The point on the circumference situated vertically opposite to the contact point

The point of contact

An infinite distance on the plane surface

The center of the disc

The point on the circumference situated vertically opposite to the contact point

The point of contact

An infinite distance on the plane surface

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Theory of Machine
The example of successfully constrained motion is a

All of these

Motion of an I.C. engine valve

Piston reciprocating inside an engine cylinder

Motion of the shaft between a footstep bearing

All of these

Motion of an I.C. engine valve

Piston reciprocating inside an engine cylinder

Motion of the shaft between a footstep bearing

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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

Could change or remain unaltered depending on which link is fixed

Will not occur

Will change

Will remain same

Could change or remain unaltered depending on which link is fixed

Will not occur

Will change

Will remain same

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Theory of Machine

Theory of Machine In a cam drive with uniform velocity follower, the sharp corners of the displacement diagram are rounded off at the beginning and at the end of each stroke. This is done

Theory of Machine In gears, interference takes place when

Theory of Machine In a system subjected to damped forced vibrations, the ratio of maximum displacement to the static deflection is known as

Theory of Machine The instantaneous center of a rigid thin disc rolling on a plane rigid surface is located at

Theory of Machine The example of successfully constrained motion is a

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
In a cam drive with uniform velocity follower, the sharp corners of the displacement diagram are rounded off at the beginning and at the end of each stroke. This is done

Theory of Machine
In gears, interference takes place when

Theory of Machine
In a system subjected to damped forced vibrations, the ratio of maximum displacement to the static deflection is known as

Theory of Machine
The instantaneous center of a rigid thin disc rolling on a plane rigid surface is located at

Theory of Machine
The example of successfully constrained motion is a

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