Theory of Machine
The power of a Porter governor is equal to

[c²/(1 + 2c)] (m + M) g.h
[3c²/(1 + 2c)] (m + M) g.h
[2c²/(1 + 2c)] (m + M) g.h
[4c²/(1 + 2c)] (m + M) g.h

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Theory of Machine
The steering of a ship means

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

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