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Theory of Machine

Theory of Machine
The size of cam depends upon

Prime circle
Pitch circle
Pitch curve
Base circle

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Theory of Machine
Which of the below are inversions of slider crank mechanism? 1. Oscillating cylinder engine mechanism 2. Toggle mechanism 3. Radial cylinder engine mechanism 4. Quick return mechanism

1, 2 and 4
2, 3 and 4
1, 3 and 4
1, 2 and 3

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Theory of Machine
The ratio of height of Porter governor (when length of arms and links are equal) to the height of Watt's governor is (where m = Mass of the ball, and M = Mass on the sleeve)

(m + M)/m
M/(m + M)
(m + M)/M
m/(m + M)

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Theory of Machine
The frictional torque transmitted by a cone clutch is same as that of

Truncated conical pivot bearing
Flat pivot bearing
Conical pivot bearing
Flat collar bearing

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Theory of Machine
Which of the following is an inversion of a double slider crank chain?

All of these
Oldham's coupling
Elliptical trammel
Scotch yoke mechanism

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Theory of Machine
In a reciprocating engine, usually __________ of the reciprocating masses are balanced.

Whole
Three-fourth
Two-third
One-half

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