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Theory of Machine

Theory of Machine
The number of links in pantograph mechanism is equal to

2
3
4
5

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

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Theory of Machine
A reed type tachometer use the principle of

Torsional vibration
Damped free vibration
Longitudinal vibration
Transverse vibration

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Theory of Machine
When there is a reduction in amplitude over every cycle of vibration, then the body is said to have

Forced vibration
Under damped vibration
Free vibration
Damped vibration

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Theory of Machine
The length of a simple pendulum which gives the same frequency as the compound pendulum, is

(kG² + l₁²)/ l₁
kG² + l₁
kG + l₁
(kG + l₁²)/ l₁

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Theory of Machine
The acceleration of the particle moving with simple harmonic motion is _________ at the mean position.

Minimum
None of these
Maximum
Zero

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