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Theory of Machine

Theory of Machine
A higher pair has__________.

No contact
None of these
Point contact
Surface contact

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

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

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Theory of Machine
TJIE horse power transmitted by a belt is dependent upon

Radius of pulley
All of these
Tension on slack side of belt
Tension on tight side of belt

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Theory of Machine
The magnitude of linear velocity of a point B on a link AB relative to point A is, (Where ω = Angular velocity of the link AB)

ω × (AB)²
(ω × AB)²
ω × AB
ω² × AB

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

360°
180°
90°
0°

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Theory of Machine
The frequency of oscillation at compared to earth will be

2.44 times more
6 times less
2.44 times less
6 times more

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