Theory of Machine
The indicator using Watt mechanism is known as

Thomson indicator
Thompson indicator
Simplex indicator
Richard indicator

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Theory of Machine
Which of the following statement is correct for involute gears?

A convex flank is always in contact with concave flank.
The variation in centre distance of shafts increases radial force.
The pressure angle is constant throughout the teeth engagement.
The interference is inherently absent.

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Theory of Machine
Inertia force acts

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

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