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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
When a point at the end of a link moves with constant angular velocity, its acceleration will have

Tangential component only
Radial and tangential components both
Coriolis component only
Radial component only

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Theory of Machine
To obviate axial thrust, following gear drive is used

Mutter gears
Double helical gears having identical teeth
Double helical gears having opposite teeth
Single helical gear in which one of the teeth of helix angle a is more

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

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

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Theory of Machine
Which of the following disciplines provides study of relative motion between the parts of a machine?

Mechanisms
Applied mechanics
Theory of machines
Kinematics

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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

90°
180°
270°
0°

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