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Theory of Machine

Theory of Machine
Rectilinear motion of piston is converted into rotary by

Connecting rod
Gudgeon pin
Cross head
Slider crank

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Theory of Machine
The factor which affects the critical speed of a shaft is

Span of shaft
Eccentricity
Diameter of disc
All of the listed here

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Theory of Machine
In full depth involute system, the smallest number of teeth in a pinion which meshes with rack without interference is

25
32
16
12

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Theory of Machine
The secondary unbalanced force is maximum __________ in one revolution of the crank.

Sixteen times
Eight times
Two times
Four times

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Theory of Machine
In a simple train of wheels, the velocity ratio __________ the intermediate wheels.

Either A or B
Is independent of
None of these
Depends upon

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Theory of Machine
An engine operates between temperatures of 900°Kandr2 and another engine between T2 and 400°K For both to do equal work, value of T2 will be

700°K
625°K
600°K
650°K

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