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Theory of Machine

Theory of Machine
Cylindrical cams can be classified as

Tangent
None of these
Reciprocating
Circular

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Theory of Machine
The balancing weights are introduced in planes parallel to the plane of rotation of the disturbing mass. To obtain complete dynamic balance, the minimum number of balancing weights to be introduced in different planes is

4
2
3
1

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Theory of Machine
The following is the inversion of slider crank chain mechanism

All of these
Hand pump
Whitworth quick return mechanism
Oscillating cylinder engine

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Theory of Machine
In order to balance the reciprocating masses,

Both (A) and (B)
None of these
Primary forces and couples must be balanced
Secondary forces and couples must be balanced

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

3 Hz
6π Hz
6 Hz
3π Hz

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Theory of Machine
The natural frequency of free longitudinal vibrations is equal to (where m = Mass of the body, s = Stiffness of the body, and δ = Static deflection of the body)

0.4985/√δ
1/2π × √(g/δ)
Any one of the listed here
1/2π × √(s/m)

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