Severe quenching may lead to
A) superficial hardness
B) blow holes
C) formation of cracks
D) warping
E) Parting off
Correct Answer:
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A)Variable
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A)A double start nut
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A)Milling machine
B)Planers
C)Lathes
D)Power presses
E)Cold
Q36: A blunt tool is used in
A)knurling
B)piercing
C)Parting off
D)gear
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