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Theory of Machine

Theory of Machine
The relative velocity of B with respect to A in a rigid link AB is

At 45° to AB
Parallel to AB
Perpendicular to AB
Along AB

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Theory of Machine
In order to balance the reciprocating masses,

Secondary forces and couples must be balanced
Both (A) and (B)
None of these
Primary forces and couples must be balanced

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Theory of Machine
When two pulleys are connected by means of a cross belt drive, then both the pulleys will rotate in _________ directions.

Same
None of these
Opposite
Perpendicular

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Theory of Machine
When the load on the engine increases, it becomes necessary to increase the supply of working fluid and when the load decreases, less working fluid is required. The supply of the working fluid to the engine is controlled by a

D-slide valve
Flywheel
Governor
Meyer's expansion valve

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Theory of Machine
The Coriolis component of acceleration acts

At 45° to the sliding surface
Parallel to the sliding surface
Along the sliding surface
Perpendicular to the sliding surface

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Theory of Machine
A torsional system with discs of moment of inertia I₁ and I₂ as shown in the below figure, is gear driven such that the ratio of speed of shaft B to shaft A is 'G'. Neglecting the inertia of gears, the equivalent inertia of disc on shaft B at the speed of shaft A is equal to

I₂/G²
I₂/G
G.I₂
G².I₂

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