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Theory of Machine

Theory of Machine
At the nodal point in a shaft, the amplitude for torsional vibration will be

Zero
Minimum
Maximum
Infinity

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Theory of Machine
When the crank is at the inner dead center, in a reciprocating steam engine, then the acceleration of the piston will be

ω²r. n/(n - 1)
ω²r. n/(n + 1)
ω²r. (n - 1)/n
ω²r. (n + 1)/n

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Theory of Machine
When the primary direct crank of a reciprocating engine makes an angle of 'θ' with the line of stroke, then the secondary direct crank will make an angle of _________ with the line of stroke.

2θ
θ/2
4θ
θ

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Theory of Machine
The swaying couple is maximum or minimum when the angle of inclination of the crank to the line of stroke (θ) is equal to

90° and 180°
45° and 225°
180° and 270°
270° and 360°

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

Cam and follower
Ball and socket i
Piston and cylinder
Both (A) and (B) above

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Theory of Machine
In a spring controlled governor, when the controlling force ____ as the radius of rotation increases, it is said to be a stable governor.

Remains constant
Increases
None of the listed here
Decreases

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MORE MCQ ON Theory of Machine

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