The two links OA and OB are connected by a pin joint at O. If the link OA turns with angular velocity ω₁ rad/s in the clockwise direction and the link OB turns with angular velocity ω₂ rad/s in the clockwise direction, then the rubbing velocity at the pin joint O is (where r = Radius of the pin at O)

Theory of Machine
The two links OA and OB are connected by a pin joint at O. If the link OA turns with angular velocity ω₁ rad/s in the clockwise direction and the link OB turns with angular velocity ω₂ rad/s in the clockwise direction, then the rubbing velocity at the pin joint O is (where r = Radius of the pin at O)

(ω₁ - ω₂)2r

ω₁.ω₂.r

(ω₁ + ω₂)r

(ω₁ - ω₂)r

(ω₁ - ω₂)2r

ω₁.ω₂.r

(ω₁ + ω₂)r

(ω₁ - ω₂)r

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Theory of Machine
When there is a reduction in amplitude over every cycle of vibration, then the body is said to have

Free vibration

Under damped vibration

Damped vibration

Forced vibration

Free vibration

Under damped vibration

Damped vibration

Forced vibration

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Theory of Machine
When the nature of contact between the elements of a pair is such that one element can turn about the other by screw threads, the pair is known as a

Turning pair

Sliding pair

Spherical pair

Screw pair

Turning pair

Sliding pair

Spherical pair

Screw pair

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Theory of Machine
When the crank is at the inner dead center, in a reciprocating steam engine, then the acceleration of the piston will be

ω²r. n/(n + 1)

ω²r. (n + 1)/n

ω²r. n/(n - 1)

ω²r. (n - 1)/n

ω²r. n/(n + 1)

ω²r. (n + 1)/n

ω²r. n/(n - 1)

ω²r. (n - 1)/n

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Theory of Machine
The sense of Coriolis component is such that it

Is along the sliding velocity vector

Leads the sliding velocity vector by 180°

Lags the sliding velocity vector by 90°

Leads the sliding velocity vector by 90°

Is along the sliding velocity vector

Leads the sliding velocity vector by 180°

Lags the sliding velocity vector by 90°

Leads the sliding velocity vector by 90°

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Theory of Machine
Angle of ascent of cam is defined as the angle

Through which the cam rotates during the period in which the follower remains in highest position

During which the follower returns to its initial position

Moved by the cam from the instant the follower begins to rise, till it reaches its highest position

Of rotation of the cam for a definite displacement of the follower

Through which the cam rotates during the period in which the follower remains in highest position

During which the follower returns to its initial position

Moved by the cam from the instant the follower begins to rise, till it reaches its highest position

Of rotation of the cam for a definite displacement of the follower

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Theory of Machine

Theory of Machine When there is a reduction in amplitude over every cycle of vibration, then the body is said to have

Theory of Machine When the nature of contact between the elements of a pair is such that one element can turn about the other by screw threads, the pair is known as a

Theory of Machine When the crank is at the inner dead center, in a reciprocating steam engine, then the acceleration of the piston will be

Theory of Machine The sense of Coriolis component is such that it

Theory of Machine Angle of ascent of cam is defined as the angle

Theory of Machine
When there is a reduction in amplitude over every cycle of vibration, then the body is said to have

Theory of Machine
When the nature of contact between the elements of a pair is such that one element can turn about the other by screw threads, the pair is known as a

Theory of Machine
When the crank is at the inner dead center, in a reciprocating steam engine, then the acceleration of the piston will be

Theory of Machine
The sense of Coriolis component is such that it

Theory of Machine
Angle of ascent of cam is defined as the angle