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Theory of Machine

Theory of Machine
An automobile steering gear is an example of

Higher pair
Sliding pair
Lower pair
Rolling pair

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Theory of Machine
The natural frequency of free transverse vibrations due to a point load acting over a simply supported shaft is equal to (where δ = Static deflection of a simply supported shaft due to the point load)

0.4985/√δ
0.6253/√δ
0.5615/√δ
0.571/√δ

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

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

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Theory of Machine
A mass of 1 kg is attached to the end of a spring with a stiffness of 0.7 N/mm. The critical damping coefficient of this system is

1.4 N-s/m
52.92 N-s/m
18.52 N-s/m
529.2 N-s/m

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Theory of Machine
A Hartnell governor is a

Dead weight governor
Pendulum type governor
Inertia governor
Spring loaded governor

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Theory of Machine
The acceleration of a flat-faced follower when it has contact with the flank of a circular arc cam, is given by

ω² r₁ sinθ
ω² (R - r₁) sinθ
ω² (R - r₁) cosθ
ω² R cosθ

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