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Manufacturing And Production Technology

Manufacturing And Production Technology
The chuck used for setting up of heavy and irregular shaped work should be

Drill chuck
Three jaw universal chuck
Four jaw independent chuck
Magnetic chuck

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Manufacturing And Production Technology
A lead-screw with half nuts in a lathe, free to rotate in both directions has

Buttress threads
Whitworth threads
V-threads
Acme threads

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Manufacturing And Production Technology
The addition of lead, sulphur and phosphorus to low carbon steels, help to

All of these
Improve machinability
Reduce built up edge
Break up chips

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Manufacturing And Production Technology
In up milling, the thickness of chip is

Maximum at the beginning of the cut and minimum at the end of the cut
None of these
Uniform throughout the cut
Minimum at the beginning of the cut and maximum at the end of the cut

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Manufacturing And Production Technology
In orthogonal turning of a low carbon steel bar of diameter 150 mm with uncoated carbide tool, the cutting velocity is 90 m/min. The feed is 0.24 mm/rev and the depth of cut is 2 mm. The chip thickness obtained is 0.48 mm. If the orthogonal rake angle is zero and the principle cutting edge angle is 90⁰, the shear angle in degree is

20.56
26.56
36.56
30.56

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Manufacturing And Production Technology
In a metal arc welding process, a gas metal arc welding with magnetized flux is used and can be done in all the positions i.e. flat position, vertical position or inclined position.

Dip transfer
Spray transfer
Globular transfer
GMAW practice

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