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Theory of Machine

Theory of Machine
The cam and follower is an example of

Rolling pair
Lower pair
Sliding pair
Higher pair

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Theory of Machine
Under logarithmic decrement, the amplitude of successive vibrations are

Constant
In logarithmic progression
In arithmetic progression
In geometric progression

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Theory of Machine
The acceleration of the reciprocating roller follower when it has contact with the straight flanks of the tangent cam, is given by

ω². (r₁ + r₂). (1 + cos² θ)
ω². (r₁ - r₂). (1 - sin² θ)
ω². (r₁ + r₂). [(2 - cos² θ)/cos³ θ]
ω². (r₁ r₂). (1 - cos² θ)

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Theory of Machine
The natural frequency of free transverse vibrations due to uniformly distributed load acting over a simply supported shaft is (where δS = Static deflection of simply supported shaft due to uniformly distributed load)

0.4985/ √δS
0.571/ √δS
0.6253/ √δS
0.5615/ √δS

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Theory of Machine
The amplitude of vibration is always __________ the radius of the circle.

Equal to
None of these
Less than
Greater than

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Theory of Machine
The velocity of the rubbing surface __________ with the distance from the axis of the bearing.

None of these
Remain same
Increases
Decreases

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MORE MCQ ON Theory of Machine

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