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Theory of Machine

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°
90°
270°
0°

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Theory of Machine
When the particles of a body moves perpendicular to its axis, then the body is said to have

Transverse vibration
None of these
Longitudinal vibration
Torsional vibration

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Theory of Machine
If the damping factor for a vibrating system is unity, then the system will be

Over damped
Under damped
Critically damped
Without vibrations

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Theory of Machine
Davis steering gear consists of

Sliding pairs
Turning pairs
Higher pairs
Rolling pairs

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Theory of Machine
Which of the following is a turning pair?

Lead screw of a lathe with nut
Ball and a socket joint
Shaft with collars at both ends fitted into a circular hole
Piston and cylinder of a reciprocating steam engine

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Theory of Machine
The values of velocity and acceleration of piston at near dead center for a slider-crank mechanism will be

0, 0
0, and more than co2r
cor, 0
0, and less than coV

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