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Theory of Machine

Theory of Machine
The behaviour of gases can be fully determined by

1 law
2 laws
3 laws
4 laws

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Theory of Machine
In under damped vibrating system, if x₁ and x₂ are the successive values of the amplitude on the same side of the mean position, then the logarithmic decrement is equal to

loge(x₁/x₂)
log(x₁/x₂)
x₁/x₂
log(x₁.x₂)

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Theory of Machine
Sense of tangential acceleration of a link

Could be either same or opposite to velocity
Is perpendicular to that of velocity
Is same as that of velocity
Is opposite to that of velocity

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Theory of Machine
Which of the following is an example of sliding pair?

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

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Theory of Machine
The lead screw of a lathe with nut forms a

Rolling pair
Sliding pair
Screw pair
Turning pair

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Theory of Machine
For S.H.M. cam, the acceleration of the follower at the ends of the stroke and aimed stroke respectively, is

Zero and maximum
Maximum and zero
Zero and minimum
Minimum and maximum

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