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Theory of Machine

Theory of Machine
A cam mechanism imparts following motion

Reciprocating
All of these
Oscillating
Rotating

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Theory of Machine
If the number of links in a mechanism is equal to l, then the numbers of possible inversions are equal to

l
l - 2
l - 1
l + 1

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Theory of Machine
The gear train usually employed in clocks is a

Reverted gear train
Sun and planet gear
Differential gear
Simple gear train

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Theory of Machine
The power of a Porter governor is equal to

[c²/(1 + 2c)] (m + M) g.h
[3c²/(1 + 2c)] (m + M) g.h
[4c²/(1 + 2c)] (m + M) g.h
[2c²/(1 + 2c)] (m + M) g.h

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Theory of Machine
Longitudinal vibrations are said to occur when the particles of a body moves

Parallel to its axis
In a circle about its axis
None of these
Perpendicular to its axis

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Theory of Machine
A spring controlled governor is said to be stable if the controlling force line when produced intersects the Y-axis

At the origin
Any one of these
Above the origin
Below the origin

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