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Theory of Machine

Theory of Machine
When a ship travels in a sea, which of the effect is more dangerous

Steering
Rolling
Pitching
All of these

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Theory of Machine
When the relation between the controlling force (Fc) and radius of rotation (r) for a spring controlled governor is Fc = ar + b, then the governor will be

Unstable
Stable
None of these
Isochronous

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Theory of Machine
A mechanism consisting of four links is called a __________ mechanism.

Compound
Simple
Binary
None of these

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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)

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

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Theory of Machine
The danger of breakage and vibration is maximum

None of these
Above the critical speed
Near the critical speed
Below the critical speed

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Theory of Machine
Davis steering gear consists of

Sliding pairs
Turning pairs
Higher pairs
Rolling pairs

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