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Theory of Machine

Theory of Machine
The size of cam depends upon

Prime circle
Base circle
Pitch circle
Pitch curve

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Theory of Machine
Carnot cycle is

a reversible cycle
a quasi static cycle
a semi-reversible cycle
an irreversible cycle

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Theory of Machine
When the crank is at the inner dead centre, in a reciprocating steam engine, then the velocity of the piston will be

Zero
Maximum
Minimum
None of these

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Theory of Machine
The values of velocity and acceleration of piston at near dead center for a slider-crank mechanism will be

0, 0
cor, 0
0, and more than co2r
0, and less than coV

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Theory of Machine
Tangential acceleration direction is

Along the angular velocity
Perpendicular to angular velocity
May be any one of these
Opposite to angular velocity

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Theory of Machine
The absolute acceleration of any point ‘P’ in a link about center of rotation ‘O’ is

None of the listed here
At 45° to PO
Along PO
Perpendicular to PO

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