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Workshop Technology

Workshop Technology
The electron beam welding can be carried out in

A pressurized inert gas chamber
Vacuum
Open air
A shielded gas environment

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Workshop Technology
A casting defect which results in general enlargement of a casting is known as

Shift
Scab
Swell
Sand wash

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Workshop Technology
In forehand welding, the weld is made

First from left to right and then from right to left
From right to left
From left to right
Either from left to right or from right to left

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Workshop Technology
In average work, the tolerance produced by investment casting method is

+1 mm
+05 mm
±0.05 mm
+0.2 mm

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Workshop Technology
Metal patterns are used for

Small castings
Large scale production of castings
Large castings
Complicated castings

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Workshop Technology
In order to get uniform thickness of the plate by rolling process, one provides

Camber on the rolls
Hardening of the rolls
Offset on the rolls
Antifriction bearings

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