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Theory of Machine

Theory of Machine
The behaviour of gases can be fully determined by

4 laws
2 laws
1 law
3 laws

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Theory of Machine
The condition for correct steering of a Davis steering gear is (where α = Angle of inclination of the links to the vertical)

cosα = c/b
tanα = c/2b
sinα = b/c
cotα = c/2b

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Theory of Machine
In a Hartnell governor, the lift of the sleeve is given by (where r₁ and r₂ = Max. and min. radii of rotation, x = Length of ball arm of the lever, and y = Length of sleeve arm of the lever)

(r₁ - r₂) (y/x)
(r₁ + r₂) (y/x)
(r₁ + r₂) (x/y)
(r₁ - r₂) (x/y)

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Theory of Machine
The ratio of the maximum displacement of the forced vibration to the deflection due to the static force, is known as

Damping coefficient
Logarithmic decrement
Damping factor
Magnification factor

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Theory of Machine
Creep in belt drive is due to

Material of the pulley
Uneven extensions and contractions due to varying tension
Material of the belt
Larger size of the driver pulley

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

Mechanisms
Kinematics
Theory of machines
Applied mechanics

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