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Theory of Machine

Theory of Machine
If ω/ωn is very high for a body vibrating under steady state vibrations, the phase angle for all values of damping factors, will tend to approach

180°
90°
0°
360°

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Theory of Machine
The swaying couple is maximum or minimum when the angle of inclination of the crank to the line of stroke (θ) is equal to

180° and 270°
90° and 180°
45° and 225°
270° and 360°

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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
Clearance circle
Pitch circle
Addendum circle

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Theory of Machine
The C.G. of a link in any mechanism would experience

Linear acceleration
Both angular and linear accelerations
Angular acceleration
No acceleration

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Theory of Machine
In full depth involute system, the smallest number of teeth in a pinion which meshes with rack without interference is

25
16
32
12

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Theory of Machine
________ is an inversion of Double slider crank chain.

Reciprocating engine
Coupling rod of a locomotive
Hand pump
Scotch yoke mechanism

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