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Manufacturing And Production Technology

Manufacturing And Production Technology
The common welding error that occurs due to wrong speed, faulty preparation, and high / low current, improper electrode size is called?

Warping
Porous weld
Distortion
Poor fusion

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

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

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Manufacturing And Production Technology
The crystal structure of austenite is

Body centered tetragonal
Face centered cubic
Body centered cubic
Hexagonal closed packed

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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

36.56
20.56
26.56
30.56

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Manufacturing And Production Technology
An open structure of a grinding wheel is used for

Tough materials
Soft materials
All of these
Ductile materials

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Manufacturing And Production Technology
In which of the following machine, the work is usually rotated while the drill is fed into work?

Gang drilling machine
Radial drilling machine
Deep hole drilling machine
Sensitive drilling machine

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