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Theory of Machine

Theory of Machine
Which of the following is a higher pair?

Belt and pulley
Turning pair
Screw pair
Sliding pair

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Theory of Machine
The frictional torque transmitted in a conical pivot bearing with assumption of uniform pressure is __________ as compared to uniform wear.

Less
None of these
Same
More

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Theory of Machine
The velocity of the belt for maximum power is (where m = Mass of the belt in kg per meter length)

T/3
√(T/3m)
(T.g)/3
√(3m/T)

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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

32
25
12
16

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Theory of Machine
The Coriolis component of acceleration leads the sliding velocity by

135°
90°
45°
180°

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Theory of Machine
Which of the following has sliding motion?

Cross-head
Crank pin
Crank
Connecting rod

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