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671.

The feed depends on

A.	finish required	B.	depth of cut
C.	rigidity of machine	D.	All of the above

672.

At what rpm should a lathe be run to give a cutting speed of 25 m/min. When turning a rod of diameter 32 mm.

A.	100 rpm	B.	160 rpm
C.	200 rpm	D.	250 rpm

673.

Preferred numbers are the numbers in

A.	arithmetic progression	B.	geometric progression
C.	harmonic progression	D.	Logarithmic progression

674.

The chips formed during the milling of aluminium are

A.	snarl	B.	helical
C.	closed spirals	D.	fragments

675.

The chips formed during broaching of steel are

A.	fragments	B.	closed spirals
C.	snarl	D.	splinters

676.

In all the following case chips produced are in the form of fragments EXCEPT:

A.	Milling of aluminium	B.	Shaping of cast iron
C.	Trepanning of steel	D.	Facing of bronze

677.

During planning the chips produced are in the form of

A.	fragments	B.	closed spirals
C.	long helics	D.	spinters

678.

All of the following are metal cleaning methods EXCEPT:

A.	Tumbling	B.	Knurling
C.	Phosphatizing	D.	Abrasion blasting

679.

Which of the following process provides continuous welds between two sheets?

A.	Projection welding	B.	Spot welding
C.	Seam welding	D.	All of the above

680.

In wire cut EDM the electrode is

A.	a thin wire	B.	a thin sheet
C.	a copper bar	D.	a tungsten plate