Theory of Machine
In a cone pulley, if the sum of radii of the pulleys on the driving and driven shafts is constant, then

Both open belt drive and crossed belt drive is recommended
The drive is recommended depending upon the torque transmitted
Crossed belt drive is recommended
Open belt drive is recommended

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Theory of Machine
The steering of a ship means

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

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Theory of Machine
The maximum fluctuation of speed is the

Difference of minimum fluctuation of speed and the mean speed
Difference of the maximum and minimum speeds
Variations of speed above and below the mean resisting torque line
Sum of maximum and minimum speeds

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