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

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Manufacturing And Production Technology
The hardness of a grinding wheel is determined by the

Hardness of abrasive grains
Ability of the grinding wheel to penetrate the work piece
Hardness of the bond
Ability of the bond to retain abrasives

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Manufacturing And Production Technology
Which of the following statement is correct about EDM machining?

It can machine hardest materials
The tool and work are never in contact with each other
All of these
It produces high degree of surface finish

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Manufacturing And Production Technology
For machining a mild steel workpiece by a high speed steel tool, the average cutting speed is

10 m/min
30 m/min
5 m/min
15 m/min

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Manufacturing And Production Technology
The factor which affects the tool life is

Feed rate
Cutting speed
Tool geometry
All of these

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Manufacturing And Production Technology
The lathe spindles at the nose end have

External screw threads
No threads
Tapered threads
Internal screw threads

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