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631.

In shearing operation on a power press, total cutting force depends on

A.	sharpness of cutting edge	B.	clearance between die and punch
C.	angle of shear on die and punch	D.	All of the above

632.

Which of the following press is best suited for embossing?

A.	Knuckle joint press	B.	Toggle action press
C.	Double action press	D.	None of the above

633.

Press die life is gauged by

A.	loss in weight	B.	amount of burr produced
C.	change of colour	D.	Any of the above

634.

Gear cutters are specified by

A.	cutter number	B.	cutter diameter
C.	no. of teeth	D.	Any of the above

635.

Which of the following is a gear finishing operation?

A.	Gear burnishing	B.	Phosphate coating
C.	Gear lapping	D.	All of the above

636.

A tool has tool signature 15, 15, 10, 10, 15, 10, (3 mm). Which of the following angle is not of 15??

A.	Side rake angle	B.	Cutting edge angle
C.	End relief angle	D.	Back rake angle

637.

A drill will not cut when

A.	helix pitch is large	B.	helix pitch is small
C.	point angle is 118?	D.	lip angle is zero

638.

Point angle of 90? is used on drills for drilling on

A.	very hard materials	B.	aluminium
C.	bakelite	D.	brass

639.

Point angle of 135 to 150? is used on drills while drilling

A.	hard steels	B.	nickel alloys
C.	thin sheet metals	D.	Any of the above

640.

Which turning aluminium the side rake angle is nearly

A.	0?	B.	5?
C.	10?	D.	15?