Theory of Machine
Which one of the following is an exact straight line mechanism using lower pairs?

Watt’s mechanism
Peaucellier’s mechanism
Grasshopper mechanism
Robert’s mechanism

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Theory of Machine
Power of a governor is the

None of these
Mean force exerted at the sleeve for maximum equilibrium speed
Mean force exerted at the sleeve for a given percentage change of speed
Work-done at the sleeve for maximum equilibrium speed

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