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, if N coincides with O, then

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, if N coincides with O, then

Acceleration of the piston P is zero and its velocity is maximum

Acceleration and velocity of the piston P is zero

Acceleration and velocity of the piston P is maximum

Acceleration of the piston P is maximum and its velocity is zero

Acceleration of the piston P is zero and its velocity is maximum

Acceleration and velocity of the piston P is zero

Acceleration and velocity of the piston P is maximum

Acceleration of the piston P is maximum and its velocity is zero

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Theory of Machine
When the elements of a pair are kept in contact by the action of external forces, the pair is said to be a

Lower pair

Force-closed pair

Self-closed pair

Higher pair

Lower pair

Force-closed pair

Self-closed pair

Higher pair

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Theory of Machine
When brakes are applied to all the four wheels of a moving car, the distance traveled by the car before it is brought to rest, will be

None of these

Maximum

Zero

Minimum

None of these

Maximum

Zero

Minimum

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Theory of Machine
The radius of a friction circle for a shaft rotating inside a bearing is (where r = Radius of shaft, and tan φ = Coefficient of friction between the shaft and bearing)

r sinφ

r tanφ

(r/2) cosφ

r cosφ

r sinφ

r tanφ

(r/2) cosφ

r cosφ

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Theory of Machine
Higher pairs are those which have

Surface contact between the two elements when in motion

Two elements that permit relative motion

Point or line contact between the two elements when in motion

Elements of pairs not held together mechanically

Surface contact between the two elements when in motion

Two elements that permit relative motion

Point or line contact between the two elements when in motion

Elements of pairs not held together mechanically

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Theory of Machine
Whitworth quick return mechanism is obtained by inversion of

Slider crank mechanism

Kinematic chain

Roller cam mechanism

Five link mechanism

Slider crank mechanism

Kinematic chain

Roller cam mechanism

Five link mechanism

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Theory of Machine

Theory of Machine When the elements of a pair are kept in contact by the action of external forces, the pair is said to be a

Theory of Machine When brakes are applied to all the four wheels of a moving car, the distance traveled by the car before it is brought to rest, will be

Theory of Machine The radius of a friction circle for a shaft rotating inside a bearing is (where r = Radius of shaft, and tan φ = Coefficient of friction between the shaft and bearing)

Theory of Machine Higher pairs are those which have

Theory of Machine Whitworth quick return mechanism is obtained by inversion of

Theory of Machine
When the elements of a pair are kept in contact by the action of external forces, the pair is said to be a

Theory of Machine
When brakes are applied to all the four wheels of a moving car, the distance traveled by the car before it is brought to rest, will be

Theory of Machine
The radius of a friction circle for a shaft rotating inside a bearing is (where r = Radius of shaft, and tan φ = Coefficient of friction between the shaft and bearing)

Theory of Machine
Higher pairs are those which have

Theory of Machine
Whitworth quick return mechanism is obtained by inversion of