Machine Design
The lower deviation is the algebraic difference between the

Minimum limit and the basic size
Actual size and the corresponding basic size
None of these
Maximum limit and the basic size

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Machine Design
Machine screws are

Similar to small size tap bolts except that a greater variety of shapes of heads are available
Slotted for a screw driver and generally used with a nut
Similar to stud
Used to prevent relative motion between two parts

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Machine Design
Coaxing is the procedure of increasing

Metal hardness by surface treatment
Fatigue limit by over-stressing the metal by successively increasing loadings
Metal strength by cycling
Metal resistance to corrosion by coating

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