Theory of Machine
In a Hartnell governor, if a spring of greater stiffness is used, then the governor will be

Less sensitive
More sensitive
Unaffected of sensitivity
Isochronous

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Theory of Machine
Inertia force acts

Perpendicular to the acceleration force
Opposite to the direction of acceleration force
Along the direction of acceleration force
None of the listed here

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Theory of Machine
The velocity of piston in a reciprocating steam engine is given by (where ω = Angular velocity of crank, r = Radius of crank pin circle, θ = Angle turned by crank from inner dead center, and n = Ratio of length of connecting rod to the radius of crank)

ω²r [cos θ + (cos 2θ/n)]
ωr [sin θ + (sin 2θ/n)]
ω²r [sin θ + (sin 2θ/n)]
ωr [cos θ + (cos 2θ/n)]

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Theory of Machine
Oldham's coupling is the

Second inversion of single slider crank chain
Third inversion of double slider crank chain
Third inversion of slider crank chain
Second inversion of double slider crank chain

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