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Theory of Machine

Theory of Machine
The velocity of a body moving with simple harmonic motion is __________ at the mean position.

None of these
Zero
Maximum
Minimum

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Theory of Machine
In a kinematic chain, a quaternary joint is equivalent to

Three binary joints
Two binary joints
Four binary joints
One binary joint

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Theory of Machine
The primary unbalanced force is maximum _________ in one revolution of the crank.

Eight times
Sixteen times
Four times
Twice

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Theory of Machine
The transmissibility, for all values of damping factor, will be less than unity, if ω/ωn is

Equal to 1
Less than 2
Greater than 2
Equal to 2

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Theory of Machine
In a vibrating system, if the actual damping coefficient is 40 N/m/s and critical damping coefficient is 420 N/m/s, then logarithmic decrement is equal to

0.6
0.8
0.2
0.4

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Theory of Machine
When the primary direct crank of a reciprocating engine makes an angle of 'θ' with the line of stroke, then the secondary direct crank will make an angle of _________ with the line of stroke.

θ
2θ
θ/2
4θ

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