In a four-bar chain it is required to give an oscillatory motion to the follower for a continuous rotation of the crank. For the lengths of 50 mm of crank and 70 mm of the follower, determine theoretical maximum length of coupler. The minimum length of the coupler will be

Theory of Machine
In a four-bar chain it is required to give an oscillatory motion to the follower for a continuous rotation of the crank. For the lengths of 50 mm of crank and 70 mm of the follower, determine theoretical maximum length of coupler. The minimum length of the coupler will be

Slightly less than 45 mm

45 mm

Slightly more than 45 mm

95 mm

Slightly less than 45 mm

45 mm

Slightly more than 45 mm

95 mm

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Theory of Machine
The size of cam depends upon

Pitch curve

Base circle

Prime circle

Pitch circle

Pitch curve

Base circle

Prime circle

Pitch circle

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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

Minimum

None of these

Maximum

Zero

Minimum

None of these

Maximum

Zero

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Theory of Machine
A shaft has an attached disc at the centre of its length. The disc has its centre of gravity located at a distance of 2 mm from the axis of the shaft. When the shaft is allowed to vibrate in its natural bow-shaped mode, it has a frequency of vibration of 10 rad/s. When the shaft is rotated at 300 r.p.m., it will whirl with a radius of

2.22 mm

2.50 mm

3.0 mm

2 mm

2.22 mm

2.50 mm

3.0 mm

2 mm

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Theory of Machine
The contact ratio is given by

(Length of path of recess)/(Circular pitch)

(Length of the arc of approach)/cosφ

(Length of the path of approach)/(Circular pitch)

(Length of the arc of contact)/(Circular pitch)

(Length of path of recess)/(Circular pitch)

(Length of the arc of approach)/cosφ

(Length of the path of approach)/(Circular pitch)

(Length of the arc of contact)/(Circular pitch)

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Theory of Machine
The tendency of a body to resist change from rest or motion is known as

Mass

Friction

Inertia

Resisting force

Mass

Friction

Inertia

Resisting force

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Theory of Machine

Theory of Machine In a four-bar chain it is required to give an oscillatory motion to the follower for a continuous rotation of the crank. For the lengths of 50 mm of crank and 70 mm of the follower, determine theoretical maximum length of coupler. The minimum length of the coupler will be

Theory of Machine The size of cam depends upon

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 contact ratio is given by

Theory of Machine The tendency of a body to resist change from rest or motion is known as

Theory of Machine
In a four-bar chain it is required to give an oscillatory motion to the follower for a continuous rotation of the crank. For the lengths of 50 mm of crank and 70 mm of the follower, determine theoretical maximum length of coupler. The minimum length of the coupler will be

Theory of Machine
The size of cam depends upon

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 contact ratio is given by

Theory of Machine
The tendency of a body to resist change from rest or motion is known as