708. The purpose of providing relief or clearance angles on tools is to
A.Permit chip formation
B.Prevent tool from rubbing on the work
C.Strain harden the material
D.Strengthen the tool

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709. High speed steel tools compared to carbon steel tools operate at
A.Same speed
B.2-3 times higher speed
C.2-3 times lower speed
D.3-5 times higher speed

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710. The cutting speed of H.S.S. milling cutter to machine aluminium is
A.25-40 m/min
B.50-80 m/min
C.100-160 m/min
D.180-240 m/min

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711. In straddle milling, following number of side milling cutters are mounted on the arbor
A.1
B.2
C.3
D.4

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712. The following cutting fluid is used when milling with carbide tipped milling cutter
A.Kerosene
B.Dry
C.Water
D.CO2

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713. Which of the following is not a multipoint cutting tool
A.Drill
B.Reamer
C.Milling cutter
D.Parting tool

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714. The included angle of taper in collet is usually
A.1-2°
B.5-10°
C.30°
D.45°

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