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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)

ω/2π
ω × 2π
2π/ω
π/ω

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Theory of Machine
In order to facilitate starting of locomotive in any position, the cranks of a locomotive with two cylinders, are placed at

180° to each other
45° to each other
120° to each other
90° to each other

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Theory of Machine
The motion of a shaft in a circular hole is an example of

Completely constrained motion
None of these
Successfully constrained motion
Incompletely constrained motion

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Theory of Machine
A flywheel is fitted to the crankshaft of an engine having W as the amount of indicated work per revolution and permissible limits of coefficient of fluctuation of energy and speed as CE and CS respectively. The kinetic energy of the flywheel is given by

W CE / CS
W CE / 2CS
2 W CE / CS
W CS / 2CE

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Theory of Machine
The length of a simple pendulum which gives the same frequency as the compound pendulum, is

kG + l₁
(kG² + l₁²)/ l₁
kG² + l₁
(kG + l₁²)/ l₁

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Theory of Machine
The frictional torque transmitted by a disc or plate clutch is same as that of

Flat collar bearing
Flat pivot bearing
Conical pivot bearing
Truncated conical pivot bearing

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