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Theory of Machine

Theory of Machine
If ‘D₁’ and ‘D₂’ be the diameters of driver and driven pulleys, then belt speed is proportional to

D₁/D₂
D₂/D₁
D₁
D₁.D₂

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Theory of Machine
The equation of motion for a single degree of freedom system with viscous damping is 4(dx²/dt²) + 9(dx/dt) + 16x. The damping ratio of the system is

44090
44082
9/128
30195

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

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Theory of Machine
A kinematic chain is known as a mechanism when

Two of the links are fixed
None of these
None of the links is fixed
One of the links is fixed

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Theory of Machine
The train value of a gear train is

Always less than unity
Always greater than unity
Equal to velocity ratio of a gear train
Reciprocal of velocity ratio of a gear train

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Theory of Machine
The unbalanced primary forces in a reciprocating engine are

Balanced by secondary forces
Balanced partially
Balanced completely
Not balanced

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