The equation of motion for a vibrating system with viscous damping is (d²x/dt²) + (c/m).(dx/dt) + (s/m).x = 0, if the roots of the equation are __________ then the system will be under damped.

Theory of Machine
The equation of motion for a vibrating system with viscous damping is (d²x/dt²) + (c/m).(dx/dt) + (s/m).x = 0, if the roots of the equation are __________ then the system will be under damped.

None of these

Complex conjugate

Equal

Real

None of these

Complex conjugate

Equal

Real

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Theory of Machine
The purpose of a link is to

All of these

Act as a support

Transmit motion

Guide other links

All of these

Act as a support

Transmit motion

Guide other links

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

All of these

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.

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

All of these

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.

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
The natural frequency of free transverse vibrations due to uniformly distributed load acting over a simply supported shaft is (where δS = Static deflection of simply supported shaft due to uniformly distributed load)

0.571/ √δS

0.6253/ √δS

0.4985/ √δS

0.5615/ √δS

0.571/ √δS

0.6253/ √δS

0.4985/ √δS

0.5615/ √δS

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Theory of Machine
The cam follower generally used in aircraft engines is

Spherical faced follower

Flat faced follower

Roller follower

Knife edge follower

Spherical faced follower

Flat faced follower

Roller follower

Knife edge follower

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Theory of Machine
The Kutzbach criterion for determining the number of degrees of freedom (n) is (where l = number of links, j = number of joints and h = number of higher pairs)

n = 2(l - 1) - 2j - h

n = 3(l - 1) - 3j - h

n = 3(l - 1) - 2j - h

n = 2(l - 1) - 3j - h

n = 2(l - 1) - 2j - h

n = 3(l - 1) - 3j - h

n = 3(l - 1) - 2j - h

n = 2(l - 1) - 3j - h

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Theory of Machine

Theory of Machine The equation of motion for a vibrating system with viscous damping is (d²x/dt²) + (c/m).(dx/dt) + (s/m).x = 0, if the roots of the equation are __________ then the system will be under damped.

Theory of Machine The purpose of a link is to

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

Theory of Machine The natural frequency of free transverse vibrations due to uniformly distributed load acting over a simply supported shaft is (where δS = Static deflection of simply supported shaft due to uniformly distributed load)

Theory of Machine The cam follower generally used in aircraft engines is

Theory of Machine The Kutzbach criterion for determining the number of degrees of freedom (n) is (where l = number of links, j = number of joints and h = number of higher pairs)

Theory of Machine
The equation of motion for a vibrating system with viscous damping is (d²x/dt²) + (c/m).(dx/dt) + (s/m).x = 0, if the roots of the equation are __________ then the system will be under damped.

Theory of Machine
The purpose of a link is to

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

Theory of Machine
The natural frequency of free transverse vibrations due to uniformly distributed load acting over a simply supported shaft is (where δS = Static deflection of simply supported shaft due to uniformly distributed load)

Theory of Machine
The cam follower generally used in aircraft engines is

Theory of Machine
The Kutzbach criterion for determining the number of degrees of freedom (n) is (where l = number of links, j = number of joints and h = number of higher pairs)