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Theory of Machine

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

Two nodes
One node
Three nodes
No node

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Theory of Machine
A Porter governor is a

Dead weight governor
Spring loaded governor
Inertia governor
Pendulum type governor

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Theory of Machine
The velocity of a particle moving with simple harmonic motion, at any instant is given by (where ω = Displacement of the particle from mean position)

ω² √(r² - x²)
ω² √(x² - r²)
ω √(x² - r²)
ω √(r² - x²)

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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

1.5
1
0.5
2

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Theory of Machine
The size of cam depends upon

Base circle
Pitch circle
Prime circle
Pitch curve

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Theory of Machine
The velocity of the belt for maximum power is (where m = Mass of the belt in kg per meter length)

√(3m/T)
T/3
√(T/3m)
(T.g)/3

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