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ME Set-1
Machine Design
362

Machine Design MCQ with Answers

362) In an oil lubricated journal bearing, the coefficient of friction between the journal and the bearing

remains constant at all speeds

is minimum at zero speed and increases monotonically with increase in speed

is maximum at zero speed and decreases monotonically with increase in speed

becomes minimum at an optimum speed and then increases with further increase in speed

Answer is:

becomes minimum at an optimum speed and then increases with further increase in speed

In an oil lubricated journal bearing, the coefficient of friction between the journal and the bearing

Machine Design MCQ with Answers

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Related Machine Design MCQ with Answers

363) The working of metals above the recrystallisation temperature is known as hot working.

Right

Wrong

Answer is:

Right

The working of metals above the recrystallisation temperature is known as hot working.

364) The ratio of number of teeth to the pitch circle diameter in millimetres is called circular pitch.

Agree

Disagree

Answer is:

Disagree

365) The washer is generally specified by its

outer diameter

hole diameter

thickness

mean diameter

Answer is:

hole diameter

366) The taper on key is given on

bottom side only

top side only

on both sides

any side

Answer is:

top side only

Machine Design MCQ with Answers

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