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Theory of Machine

Theory of Machine
In an ideal machine, the output as compared to input is

More
Less
May be less or more depending on efficiency
Equal

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Theory of Machine
Which of the following is a turning pair?

Piston and cylinder of a reciprocating steam engine
Ball and a socket joint
Lead screw of a lathe with nut
Shaft with collars at both ends fitted into a circular hole

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Theory of Machine
Cam size depends upon

Outer circle
Base circle
Pitch circle
Prime circle

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

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

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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/G
I₂/G²
G.I₂
G².I₂

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Theory of Machine
The swaying couple is due to the

Partial balancing
Primary unbalanced force
Secondary unbalanced force
Two cylinders of locomotive

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