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Manufacturing And Production Technology

Manufacturing And Production Technology
When 3-2-1 principle is used to support and locate a three dimensional work-piece during machining, the number of degrees of freedom that are restricted is

10
7
8
9

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Manufacturing And Production Technology
The soft grade grinding wheels are denoted by the letters

A to H
Q to Z
I to P
A to P

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Manufacturing And Production Technology
The guide-ways are of

Flat type
Any one of the listed here
Dovetail type
V-type

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Manufacturing And Production Technology
The ratio between two consecutive spindle speeds for a six-speed drilling machine using drills of diameter 6.25 to 25 mm size and at a cutting velocity of 18 m/min is

1.82
1.02
1.32
1.66

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Manufacturing And Production Technology
Soft materials can not be economically ground due to

High temperature involved
Frequent wheel clogging
Rapid wheel wear
Low work piece stiffness

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Manufacturing And Production Technology
The cutting speed of a drill depends upon the

All of these
Material of drill
Quality of surface finish desired
Type of material to be drilled

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