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Theory of Machine

Theory of Machine
Carnot cycle is

a semi-reversible cycle
a quasi static cycle
an irreversible cycle
a reversible cycle

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Theory of Machine
In steady state forced vibrations, the amplitude of vibrations at resonance is __________ damping coefficient.

Equal to
Independent of
Inversely proportional to
Directly proportional to

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Theory of Machine
A combination of kinematic pairs, joined in such a way that the relative motion between the links is completely constrained, is called a

Structure
Inversion
Mechanism
Kinematic chain

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Theory of Machine
In a radial cam, the follower moves

In a direction parallel to the cam axis
Along the cam axis
In a direction perpendicular to the cam axis
In any direction irrespective of the cam axis

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Theory of Machine
In a screw jack, the effort required to lift the load W is given by (where α = Helix angle, and φ = Angle of friction)

P = W tan(α - φ)
P = W tan(α + φ)
P = W tan(φ - α)
P = W cos(α + φ)

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Theory of Machine
A typewriter mechanism has 7 numbers of binary joints, six links and none of higher pairs. The mechanism is

Not sound
Kinematically sound
Data is not sufficient to determine same
Soundness would depend upon which link is kept fixed

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