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Theory of Machine

Theory of Machine
Shaft revolving in a bearing is the following type of pair

Cylindrical pair
Lower pair
Higher pair
Spherical pair

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Theory of Machine
The velocity of a body moving with simple harmonic motion is __________ at the mean position.

Minimum
Zero
Maximum
None of these

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Theory of Machine
In a four-bar chain it is required to give an oscillatory motion to the follower for a continuous rotation of the crank. For the lengths of 50 mm of crank and 70 mm of the follower, determine theoretical maximum length of coupler. The minimum length of the coupler will be

Slightly more than 45 mm
Slightly less than 45 mm
45 mm
95 mm

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Theory of Machine
When the nature of contact between the elements of a pair is such that one element can turn about the other by screw threads, the pair is known as a

Screw pair
Sliding pair
Turning pair
Spherical pair

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Theory of Machine
The sensitiveness of the governor _____ as the speed range decreases.

Remains unaffected
None of the listed here
Decreases
Increases

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Theory of Machine
Creep in belt drive is due to

Material of the belt
Larger size of the driver pulley
Material of the pulley
Uneven extensions and contractions due to varying tension

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