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Theory of Machine

Theory of Machine
The frequency of oscillation at compared to earth will be

2.44 times more
6 times more
2.44 times less
6 times less

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Theory of Machine
If ‘D₁’ and ‘D₂’ be the diameters of driver and driven pulleys, then belt speed is proportional to

D₁
D₂/D₁
D₁/D₂
D₁.D₂

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

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

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Theory of Machine
The radial distance of a tooth from the pitch circle to the bottom of the tooth is called

Working depth
Dedendum
Addendum
Clearance

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Theory of Machine
The periodic time of a compound pendulum is __________ when the distance between the point of suspension and the center of gravity is equal to the radius of gyration of the body about its center of gravity.

Zero
None of these
Minimum
Maximum

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Theory of Machine
In Meyer's expansion valve, the expansion valve is driven by an eccentric having an angle of advance from

60°-70°
50°- 60°
70°- 80°
80°- 90°

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