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Theory of Machine

Theory of Machine
The amplitude of vibration is always __________ the radius of the circle.

Less than
Greater than
Equal to
None of these

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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
ω² × AB
ω × (AB)²

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Theory of Machine
In a kinematic chain, a quaternary joint is equivalent to

One binary joint
Four binary joints
Three binary joints
Two binary joints

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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°
0°
90°

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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

I₂/G²
I₂/G
G.I₂
G².I₂

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Theory of Machine
The ratio of the driving tensions for V-belts is __________ times that of flat belts.(Where β = Semi-angle of the groove)

secβ
cosecβ
cosβ
sinβ

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