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Workshop Technology

Workshop Technology
Cast iron and steel pipes are produced by

True centrifugal casting
Die casting
Investment casting
Slush casting

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Workshop Technology
A sand employed on the faces of the pattern before moulding, is called

Parting sand
Loam sand
Green sand
Dry sand

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Workshop Technology
The welding process used to join the ends of two pipes of uniform cross-section, is

Spot welding
Projection welding
Upset butt welding
Seam welding

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Workshop Technology
Lap joints are employed on plates having thickness

Less than 3 mm
Above 25 mm
12.5 mm
5 to 10 mm

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Workshop Technology
In arc welding, the electric arc is produced between the work and the electrode by

Flow of current
All of these
Contact resistance
Voltage

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Workshop Technology
In submerged arc welding, an arc is produced between a

Carbon electrode and the work
Metal electrode and the work
Two tungsten electrodes and the work
Bare metal electrode and the work

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