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Theory of Machine

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 D-slide valve is also known as

None of these
Inside admission valve
Piston slide valve
Outside admission valve

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Theory of Machine
The frictional torque transmitted in a flat pivot bearing, assuming uniform wear, is(Where μ = Coefficient of friction, W=Load over the bearing, R=Radius of bearing)

½μWR
¾μWR
²/₃ μWR
μwr

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Theory of Machine
An involute pinion and gear are in mesh. If both have the same size of addendum, then there will be an interference between the

Tip of the gear tooth and flank of pinion
Tip of the pinion and flank of gear
Flanks of both gear and pinion
Tip of both gear and pinion

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Theory of Machine
The transmissibility, for all values of damping factor, will be less than unity, if ω/ωn is

Equal to 2
Equal to 1
Less than 2
Greater than 2

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Theory of Machine
The frequency of damped vibrations with viscous damping is ________ the frequency of undamped vibrations.

More than
Less than
None of these
Same as

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