A rotor which is balanced statically but not dynamically is supported on two bearings L apart and at high speed of the rotor, reaction on the left bearing is R. The right side of the bearing is shifted to a new position 2L apart from the left bearing. At the same rotor speed, dynamic reaction on the left bearing in the new arrangement will

Theory of Machine
A rotor which is balanced statically but not dynamically is supported on two bearings L apart and at high speed of the rotor, reaction on the left bearing is R. The right side of the bearing is shifted to a new position 2L apart from the left bearing. At the same rotor speed, dynamic reaction on the left bearing in the new arrangement will

Become equal to 2R

Become equal to R/4

Remain same as before

Become equal to R/2

Become equal to 2R

Become equal to R/4

Remain same as before

Become equal to R/2

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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

Slightly more than 45 mm

95 mm

45 mm

Slightly less than 45 mm

Slightly more than 45 mm

95 mm

45 mm

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Theory of Machine
According to Kennedy's theorem, if three bodies move relatively to each other, their instantaneous centers will lie on a

Straight line

Parabolic curve

Rectangle

Triangle

Straight line

Parabolic curve

Rectangle

Triangle

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Theory of Machine
In under damped vibrating system, the amplitude of vibration

Increases exponentially with time

Increases linearly with time

Decreases linearly with time

Decreases exponentially with time

Increases exponentially with time

Increases linearly with time

Decreases linearly with time

Decreases exponentially with time

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Theory of Machine
The height of a Watt's governor is

Directly proportional to speed

Inversely proportional to (speed)²

Inversely proportional to speed

Directly proportional to (speed)²

Directly proportional to speed

Inversely proportional to (speed)²

Inversely proportional to speed

Directly proportional to (speed)²

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Theory of Machine
Which of the following statements regarding laws governing the friction between dry surfaces are correct?

The friction force is directly proportional to the normal force.

The friction force is dependent on the materials of the contact surfaces.

All of these

The friction force is independent of me area of contact.

The friction force is directly proportional to the normal force.

The friction force is dependent on the materials of the contact surfaces.

All of these

The friction force is independent of me area of contact.

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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 According to Kennedy's theorem, if three bodies move relatively to each other, their instantaneous centers will lie on a

Theory of Machine In under damped vibrating system, the amplitude of vibration

Theory of Machine The height of a Watt's governor is

Theory of Machine Which of the following statements regarding laws governing the friction between dry surfaces are correct?

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
According to Kennedy's theorem, if three bodies move relatively to each other, their instantaneous centers will lie on a

Theory of Machine
In under damped vibrating system, the amplitude of vibration

Theory of Machine
The height of a Watt's governor is

Theory of Machine
Which of the following statements regarding laws governing the friction between dry surfaces are correct?