In the below figure, PC is the connecting rod and OC is the crank making an angle θ with the line of stroke PO and rotates with uniform angular velocity at ω rad/s. The Klien's acceleration diagram for determining the acceleration of the piston P is shown by quadrilateral CQNO, the acceleration of the piston is _________ when the crank OC and connecting rod PC are at right angles to each other.

Theory of Machine
In the below figure, PC is the connecting rod and OC is the crank making an angle θ with the line of stroke PO and rotates with uniform angular velocity at ω rad/s. The Klien's acceleration diagram for determining the acceleration of the piston P is shown by quadrilateral CQNO, the acceleration of the piston is _________ when the crank OC and connecting rod PC are at right angles to each other.

Infinity

Zero

Any -ve value

Any +ve value

Infinity

Zero

Any -ve value

Any +ve value

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Theory of Machine
In a vibrating system, if the actual damping coefficient is 40 N/m/s and critical damping coefficient is 420 N/m/s, then logarithmic decrement is equal to

0.2

0.8

0.4

0.6

0.2

0.8

0.4

0.6

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Theory of Machine
The purpose of a link is to

All of these

Act as a support

Transmit motion

Guide other links

All of these

Act as a support

Transmit motion

Guide other links

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Theory of Machine
The essential condition of placing the two masses, so that the system becomes dynamically equivalent, is (where l₁ and l₂ = Distance of two masses from the centre of gravity of the body, and kG = Radius of gyration of the body)

l₁ = kG

l₁l₂ = kG

l₁l₂ = kG²

l₂ = kG

l₁ = kG

l₁l₂ = kG

l₁l₂ = kG²

l₂ = kG

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Theory of Machine
In multi V-belt transmission, if one of the belt is broken, we have to change the

There is no need of changing any one as remaining belts can take care of transmission of load

Broken belt and its adjacent belts

All the belts

Broken belt

There is no need of changing any one as remaining belts can take care of transmission of load

Broken belt and its adjacent belts

All the belts

Broken belt

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Theory of Machine
A body is said to be under forced vibrations, when

None of these

A body vibrates under the influence of external force

There is a reduction in amplitude after every cycle of vibration

No external force acts on a body, after giving it an initial displacement

None of these

A body vibrates under the influence of external force

There is a reduction in amplitude after every cycle of vibration

No external force acts on a body, after giving it an initial displacement

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Theory of Machine

Theory of Machine In a vibrating system, if the actual damping coefficient is 40 N/m/s and critical damping coefficient is 420 N/m/s, then logarithmic decrement is equal to

Theory of Machine The purpose of a link is to

Theory of Machine The essential condition of placing the two masses, so that the system becomes dynamically equivalent, is (where l₁ and l₂ = Distance of two masses from the centre of gravity of the body, and kG = Radius of gyration of the body)

Theory of Machine In multi V-belt transmission, if one of the belt is broken, we have to change the

Theory of Machine A body is said to be under forced vibrations, when

Theory of Machine
In a vibrating system, if the actual damping coefficient is 40 N/m/s and critical damping coefficient is 420 N/m/s, then logarithmic decrement is equal to

Theory of Machine
The purpose of a link is to

Theory of Machine
The essential condition of placing the two masses, so that the system becomes dynamically equivalent, is (where l₁ and l₂ = Distance of two masses from the centre of gravity of the body, and kG = Radius of gyration of the body)

Theory of Machine
In multi V-belt transmission, if one of the belt is broken, we have to change the

Theory of Machine
A body is said to be under forced vibrations, when