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Theory of Machine

Theory of Machine
A cam mechanism imparts following motion

All of these
Rotating
Oscillating
Reciprocating

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Theory of Machine
Klein's construction is useful to determine

Velocity of various parts
Angular acceleration of various parts
Displacement of various parts
Acceleration of various parts

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Theory of Machine
In a four stroke I.C. engine, the turning moment during the compression stroke is

Positive throughout
Positive during major portion of the stroke
Negative during major portion of the stroke
Negative throughout

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Theory of Machine
In multi V-belt transmission, if one of the belt is broken, we have to change the

Broken belt
There is no need of changing any one as remaining belts can take care of transmission of load
Broken belt and its adjacent belts
All the belts

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Theory of Machine
The maximum value of the pressure angle in case of cam is kept as

30°
10°
20°
14°

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Theory of Machine
The velocity of sliding of meshing gear teeth is(Where ω₁ and ω₂ are angular velocities of meshing gears and ‘y’ is distance between point of contact and the pitch point)

(ω₁/ω₂) y
(ω₁ + ω₂)/y
(ω₁ × ω₂) y
(ω₁ + ω₂) y

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