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Theory of Machine

Theory of Machine
The number of links and instantaneous centers in a reciprocating engine mechanism are

5, 4
4, 6
4, 5
4, 4

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Theory of Machine
A body will begin to move down an inclined plane, if the angle of inclination of the plane is ________ the angle of friction.

Less than
Greater than
None of these
Equal to

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Theory of Machine
A Porter governor is a

Spring loaded governor
Inertia governor
Dead weight governor
Pendulum type governor

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Theory of Machine
In vibration isolation system, if ω/ωn > 1, then the phase difference between the transmitted force and the disturbing force is

180°
0°
270°
90°

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Theory of Machine
When the crank is at the inner dead centre, in a reciprocating steam engine, then the velocity of the piston will be

Maximum
Minimum
Zero
None of these

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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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