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Theory of Machine

Theory of Machine
If ω/ωn is very low for a body vibrating under steady state vibrations, the phase angle for all values of damping factors, will tend to approach

0°
360°
180°
90°

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

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

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Theory of Machine
The maximum or minimum value of the swaying couple is

± 2a (1 - c) m.ω².r
± (a/√2) (1 - c) m.ω².r
± a (1 - c) m.ω².r
± c.m.ω².r

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Theory of Machine
The balancing of a rigid rotor can be achieved by appropriately placing balancing masses in

Two planes
A single plane
Three planes
Four planes

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Theory of Machine
The behaviour of gases can be fully determined by

4 laws
1 law
3 laws
2 laws

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Theory of Machine
When the two elements of a pair have __________ when in motion, it is said to a lower pair.

Body contact
Line or point contact
Surface contact
None of these

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