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Theory of Machine

Theory of Machine
The periodic time is given by (where ω = Angular velocity of the particle in rad/s)

2π/ω
ω × 2π
π/ω
ω/2π

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Theory of Machine
The C.G. of a link in any mechanism would experience

Both angular and linear accelerations
Linear acceleration
No acceleration
Angular acceleration

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Theory of Machine
A ball and a socket forms a

Screw pair
Rolling pair
Spherical pair
Turning pair

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Theory of Machine
The displacement of the D-slide valve is __________ the steam lap by a distance known as lead of the valve.

Equal to
Less than
None of these
Greater than

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Theory of Machine
Which of the following would constitute a link?

Piston rod and cross head
Piston and piston rod
Piston, crank pin and crank shaft
Piston, piston rod and cross head

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Theory of Machine
When the pitching of a ship is __________ the effect of gyroscopic couple acting on it will be to move the ship towards port side.

Downward
Forward
Upward
Backward

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