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Theory of Machine

Theory of Machine
If ω/ωn = 2, where co is the frequency of excitation and ωn is the natural frequency of vibrations, then the transmissibility of vibration will the

2
1.5
0.5
1

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

One node
No node
Three nodes
Two nodes

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Theory of Machine
The type of gears used to connect two non parallel and non intersecting shafts is

Spur gear
Helical gear
Spiral gear
Bevel gear

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Theory of Machine
A slider moves at a velocity v on a link revolving at ω rad/s. The coriolis component of acceleration is

ωv
ω²v
2ωv
2ωv²

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Theory of Machine
An imaginary circle which by pure rolling action, gives the same motion as the actual gear, is called

Addendum circle
Dedendum circle
Pitch circle
Clearance circle

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Theory of Machine
When the axes of the first and last wheels are coaxial, then the train is known as

Reverted gear train
Compound train of wheels
Simple train of wheels
Epicyclic gear train

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