Theory of Machine
________ is an inversion of Double slider crank chain.

Reciprocating engine
Hand pump
Coupling rod of a locomotive
Scotch yoke mechanism

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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 pressure angle is constant throughout the teeth engagement.
The interference is inherently absent.
The variation in centre distance of shafts increases radial force.

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Theory of Machine
Inertia force acts

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

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