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Theory of Machine

Theory of Machine
The equation of free vibrations of a system is (d²x/dt²) +36 π²x, its natural frequency is

6π Hz
3π Hz
3 Hz
6 Hz

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Theory of Machine
________ is an inversion of Double slider crank chain.

Scotch yoke mechanism
Reciprocating engine
Coupling rod of a locomotive
Hand pump

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Theory of Machine
The size of cam depends upon

Base circle
Pitch curve
Prime circle
Pitch circle

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Theory of Machine
A rotary internal combustion engine has __________ cylinders.

Six
Five
Seven
Four

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Theory of Machine
According to Kennedy's theorem, if three bodies have plane motions, their instantaneous centers lie on A. A triangle

Two lines
A point
A triangle
A straight line

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Theory of Machine
Which of the following mechanism is obtained from lower pair?

All of these
Pantograph
Valve and valve gears
Gyroscope

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