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Theory of Machine

Theory of Machine
Carnot cycle is

a quasi static cycle
a reversible cycle
a semi-reversible cycle
an irreversible cycle

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Theory of Machine
In order to balance the reciprocating masses,

Secondary forces and couples must be balanced
None of these
Primary forces and couples must be balanced
Both (A) and (B)

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Theory of Machine
A shaft has an attached disc at the centre of its length. The disc has its centre of gravity located at a distance of 2 mm from the axis of the shaft. When the shaft is allowed to vibrate in its natural bow-shaped mode, it has a frequency of vibration of 10 rad/s. When the shaft is rotated at 300 r.p.m., it will whirl with a radius of

2.22 mm
2.50 mm
2 mm
3.0 mm

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Theory of Machine
An imaginary circle which by pure rolling action, gives the same motion as the actual gear, is called

Dedendum circle
Addendum circle
Clearance circle
Pitch circle

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

10°-15°
30°-40°
25°-30°
15°-25°

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Theory of Machine
Klein's construction gives a graphic construction for

Velocity polygon
Acceleration polygon
Four bar chain mechanism
Slider-crank mechanism

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MORE MCQ ON Theory of Machine

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