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Theory of Machine

Theory of Machine
A mechanism is an assemblage of

Four or more than four links
Three links
All of these
Two links

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Theory of Machine
A torsional system with discs of moment of inertia I₁ and I₂ as shown in the below figure, is gear driven such that the ratio of speed of shaft B to shaft A is 'G'. Neglecting the inertia of gears, the equivalent inertia of disc on shaft B at the speed of shaft A is equal to

G².I₂
I₂/G
I₂/G²
G.I₂

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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

360°
180°
90°
0°

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Theory of Machine
In a ball bearing, ball and bearing forms a

Rolling pair
Screw pair
Turning pair
Spherical pair

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Theory of Machine
The Bifilar suspension method is used to determine

Moment of inertia
Position of balancing weights
Natural frequency of vibration
Centripetal acceleration

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Theory of Machine
What is the number of instantaneous centers for an eight link mechanism?

8
30
15
28

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