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Theory of Machine

Theory of Machine
The flank of the tooth is the surface of the tooth __________ the pitch surface.

Below
Above
None of these
At

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Theory of Machine
The total number of instantaneous centers for a mechanism consisting of n links are

n - 1
n/2
n
n(n - 1)/2

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Theory of Machine
The motion between a pair which takes place in ____ is known as incompletely constrained motion.

None of the listed here
Two directions only
More than one direction
One direction only

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Theory of Machine
Frequency of vibrations is usually expressed in

None of these
Number of cycles per hour
Number of cycles per second
Number of cycles per minute

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Theory of Machine
In vibration isolation system, if ω/ωn < 2, then for all values of damping factor, the transmissibility will be (where ω = Angular speed of the system, ωn = Natural frequency of vibration of the system)

Equal to unity
Zero
Less than unity
Greater than unity

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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)

²/₃ μWR
μwr
½μWR
¾μWR

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