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641.

Which is the first element of the tool signature?

A.	Side rake angle	B.	Back rake angle
C.	Side relief angle	D.	Nose radius

642.

Materials that produce continuous chips are

A.	Cast iron	B.	Low carbon steel
C.	Brass	D.	None of the above

643.

Last element in the tool signature is

A.	side cutting edge angel	B.	side relief angle
C.	nose radius	D.	side rake angle

644.

Which of the following is basically a polishing operation?

A.	Soft grinding	B.	Lapping
C.	Honing	D.	Buffing

645.

Back rake angle while turning brass is

A.	0?	B.	5?
C.	10?	D.	22?

646.

While turning which of the following material back rake angle is the largest?

A.	Cast iron	B.	Monel matal
C.	Aluminium	D.	Hard steel

647.

Which of the following metal takes smallest side rake angle during turning?

A.	Brass	B.	Cast iron
C.	Monel metal	D.	Aluminium

648.

Glazing of grinding wheels is easily identified by

A.	Shiny sppearance on the face of the wheel	B.	black spots on the grinding face
C.	formation of cavities on the wheel	D.	None of the above

649.

Which of the folliwjng is not an abrading process?

A.	Honing	B.	Lapping
C.	Tumbling	D.	Grinding

650.

Honing is used to

A.	correct ovality	B.	waviness of axis
C.	non-parallelism of cylindrical features	D.	All of the above