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Theory of Machine

Theory of Machine
The moment on the pulley which produces rotation is called

Torque
Inertia
Momentum
Moment of momentum

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Theory of Machine
Which of the following is a pendulum type governor?

Hartnell governor
Porter governor
Watt governor
None of these

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Theory of Machine
In Meyer's expansion valve, the expansion valve is driven by an eccentric having an angle of advance from

80°- 90°
50°- 60°
70°- 80°
60°-70°

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

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Theory of Machine
In considering friction of a V-thread, the virtual coefficient of friction (μ₁) is given by

μ₁ = μ/cos β
μ₁ = μ sin β
μ₁ = μ cos β
μ₁ = μ/sin β

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

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

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