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Theory of Machine

Theory of Machine
The number of centers in a crank driven slider crank mechanism is

2
6
4

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Theory of Machine
A pantograph is a mechanism with

Lower pairs
Turning pairs
Rolling pairs
Higher pairs

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Theory of Machine
The frictional torque transmitted in a conical pivot bearing with assumption of uniform pressure is __________ as compared to uniform wear.

Less
None of these
More
Same

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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
Meyer's expansion valve
Governor
Flywheel

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Theory of Machine
Whitworth quick return mechanism is obtained by inversion of

Roller cam mechanism
Kinematic chain
Slider crank mechanism
Five link mechanism

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Theory of Machine
The relation between the controlling force (Fc) and radius of rotation (r) for a stable spring controlled governor is

Fc = ar
Fc = ar + b
Fc = ar - b
Fc = a/r + b

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