Theory of Machine
The inversion of a mechanism is

Obtained by fixing different links in a kinematic chain
Changing of a higher pair to a lower pair
Obtained by reversing the input and output motion
Turning its upside down

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Theory of Machine
The steering of a ship means

Movement of a complete ship up and down in vertical plane about transverse axis
Rolling of a complete ship sideways
Turning of a complete ship in a curve towards right or left, while it moves forward
None of these

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Theory of Machine
Inertia force acts

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

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