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Theory of Machine

Theory of Machine
In automobiles the power is transmitted from gear box to differential through

Bevel gear
Universal joint
Knuckle joint
Hooke's joint

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

28
30
15
8

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Theory of Machine
In a reciprocating engine, usually __________ of the reciprocating masses are balanced.

Three-fourth
One-half
Whole
Two-third

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Theory of Machine
The maximum value of the pressure angle in case of cam is kept as

30°
10°
20°
14°

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Theory of Machine
A typewriter mechanism has 7 numbers of binary joints, six links and none of higher pairs. The mechanism is

Soundness would depend upon which link is kept fixed
Not sound
Kinematically sound
Data is not sufficient to determine same

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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
G.I₂
I₂/G
I₂/G²

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