A shaft carrying two rotors at its ends will have

Theory of Machine
A shaft carrying two rotors at its ends will have

Three nodes

Two nodes

No node

One node

Three nodes

Two nodes

No node

One node

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Theory of Machine
The rotating shafts tend to vibrate violently at whirling speeds because

Bearing centre line coincides with the axis

The shafts are rotating at very high speeds

Resonance is caused due to the heavy mass of the rotor

The system is unbalanced

Bearing centre line coincides with the axis

The shafts are rotating at very high speeds

Resonance is caused due to the heavy mass of the rotor

The system is unbalanced

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Theory of Machine
The acceleration of a flat-faced follower when it has contact with the flank of a circular arc cam, is given by

ω² (R - r₁) sinθ

ω² r₁ sinθ

ω² R cosθ

ω² (R - r₁) cosθ

ω² (R - r₁) sinθ

ω² r₁ sinθ

ω² R cosθ

ω² (R - r₁) cosθ

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Theory of Machine
Which of the following property of the instantaneous center is correct?

The velocity of the instantaneous centre relative to any third rigid link is same whether the instantaneous centre is regarded as a point on the first rigid link or on the second rigid link.

The two rigid links have no linear velocity relative to each other at the instantaneous centre.

All of these

A rigid link rotates instantaneously relative to another link at the instantaneous centre for the configuration of the mechanism considered.

The velocity of the instantaneous centre relative to any third rigid link is same whether the instantaneous centre is regarded as a point on the first rigid link or on the second rigid link.

The two rigid links have no linear velocity relative to each other at the instantaneous centre.

All of these

A rigid link rotates instantaneously relative to another link at the instantaneous centre for the configuration of the mechanism considered.

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Theory of Machine
Which of the following statement is correct as regard to the difference between a machine and a structure?

The parts of a machine move relative to one another, whereas the members of a structure do not move relative to one another

A machine transforms the available energy into some useful work, whereas in a structure no energy is transformed into useful work

The links of a machine may transmit both power and motion, whereas the members of a structure transmit forces only

All of these

The parts of a machine move relative to one another, whereas the members of a structure do not move relative to one another

A machine transforms the available energy into some useful work, whereas in a structure no energy is transformed into useful work

The links of a machine may transmit both power and motion, whereas the members of a structure transmit forces only

All of these

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Theory of Machine
The natural frequency of free longitudinal vibrations is equal to (where m = Mass of the body, s = Stiffness of the body, and δ = Static deflection of the body)

0.4985/√δ

1/2π × √(s/m)

1/2π × √(g/δ)

Any one of the listed here

0.4985/√δ

1/2π × √(s/m)

1/2π × √(g/δ)

Any one of the listed here

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Theory of Machine

Theory of Machine A shaft carrying two rotors at its ends will have

Theory of Machine The rotating shafts tend to vibrate violently at whirling speeds because

Theory of Machine The acceleration of a flat-faced follower when it has contact with the flank of a circular arc cam, is given by

Theory of Machine Which of the following property of the instantaneous center is correct?

Theory of Machine Which of the following statement is correct as regard to the difference between a machine and a structure?

Theory of Machine The natural frequency of free longitudinal vibrations is equal to (where m = Mass of the body, s = Stiffness of the body, and δ = Static deflection of the body)

Theory of Machine
A shaft carrying two rotors at its ends will have

Theory of Machine
The rotating shafts tend to vibrate violently at whirling speeds because

Theory of Machine
The acceleration of a flat-faced follower when it has contact with the flank of a circular arc cam, is given by

Theory of Machine
Which of the following property of the instantaneous center is correct?

Theory of Machine
Which of the following statement is correct as regard to the difference between a machine and a structure?

Theory of Machine
The natural frequency of free longitudinal vibrations is equal to (where m = Mass of the body, s = Stiffness of the body, and δ = Static deflection of the body)