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Theory of Machine

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

25°-30°
30°-40°
15°-25°
10°-15°

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Theory of Machine
A body having moment of inertia o:m2 is rotating at 210 RPM and r with another body at rest having I 40 kg m2. The resultant speed after ing will be

100 RPM
80 RPM
data are insufficient
90 RPM

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Theory of Machine
If the controlling force line for a spring controlled governor when produced intersects the Y-axis at the origin, then the governor is said to be

Unstable
Stable
Isochronous
None of the listed here

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Theory of Machine
When the addenda on pinion and wheel is such that the path of approach and path of recess are half of their maximum possible values, then the length of the path of contact is given by (where r = Pitch circle radius of pinion, R = Pitch circle radius of wheel, and φ = Pressure angle)

[(r + R) sinφ]/2
[(r² + R²) sinφ]/2
[(r² + R²) cosφ]/2
[(r + R) cosφ]/2

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Theory of Machine
The Whitworth quick return motion mechanism is formed in a slider crank chain when the

Longest link is a fixed link
Smallest link is a fixed link
Slider is a fixed link
Coupler link is fixed

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Theory of Machine
The Coriolis component of acceleration depends upon

Both (A) and (B)
Velocity of slider
Angular velocity of the link
None of these

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