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Theory of Machine

Theory of Machine
Ackermann steering gear consists of

Turning pairs
Rolling pairs
Higher pairs
Sliding pairs

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Theory of Machine
The indicator using Watt mechanism is known as

Simplex indicator
Thomson indicator
Richard indicator
Thompson indicator

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Theory of Machine
The ratio of height of Porter governor (when length of arms and links are equal) to the height of Watt's governor is (where m = Mass of the ball, and M = Mass on the sleeve)

(m + M)/M
m/(m + M)
M/(m + M)
(m + M)/m

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Theory of Machine
In a multiple V-belt drive, when a single belt is damaged, it is preferable to change the complete set to

Ensure uniform loading
Ensure proper alignment
Reduce slip
Reduce vibration

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Theory of Machine
In a mechanism, usually one link is fixed. If the fixed link is changed in a kinematic chain, then relative motion of other links

Could change or remain unaltered depending on which link is fixed
Will remain same
Will not occur
Will change

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Theory of Machine
The retardation of a flat faced follower when it has contact at the apex of the nose of a circular arc cam, is given by (where OQ = Distance between the centre of circular flank and centre of nose)

ω² × OQ tanθ
ω² × OQ sinθ
ω² × OQ cosθ
ω² × OQ

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