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

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

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Theory of Machine
Angle of dwell of cam is defined as the angle

Of rotation of the cam for definite displacement of the follower
During which the follower returns to its initial position
Through which the cam rotates during the period in which the follower remains in the highest position
Moved by the cam from the instant the follower begins to rise, till it reaches its highest position

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