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Manufacturing And Production Technology

Manufacturing And Production Technology
High speed steel cutting tools operate at cutting speeds _________ than carbon steel tools.

8 to 20 times higher
5 to 8 times higher
2 to 3 times lower
2 to 3 times higher

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Manufacturing And Production Technology
The cutting fluid mostly used for machining alloy steels is

Water
Sulphurised mineral oil
Dry
Soluble oil

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Manufacturing And Production Technology
In hot machining, tool is made of

Brass or copper
Diamond
Stainless steel
Tungsten carbide

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Manufacturing And Production Technology
It is required to cut screw threads of 2 mm pitch on a lathe. The lead screw has a pitch of 6 mm. If the spindle speed is 60 r.p.m., then the speed of lead screw will be

20 r.p.m.
180 r.p.m.
120 r.p.m.
10 r.p.m.

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Manufacturing And Production Technology
The grinding operation is a

Shaping operation
Dressing operation
Forming operation
Surface finishing operation

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Manufacturing And Production Technology
A mandrel is used to hold

An eccentric work
A heavy work
None of these
A thin work

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