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Workshop Technology

Workshop Technology
In electric resistance welding, voltage required for heating is

1 to 5 volts
11 to 20 volts
6 to 10 volts
50 to 100 volts

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Workshop Technology
In a ___ two or more operations are performed simultaneously at the single stroke of the ram.

Simple die
Progressive die
Compound die
Combination die

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Workshop Technology
The electron beam welding can be carried out in

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

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Workshop Technology
Which one of the following material will require the largest size of riser for the same size of casting?

Steel
Copper
Aluminium
Cast iron

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Workshop Technology
In backhand welding, the angle between the welding torch and the work is kept as

30°-40°
50°-60°
60°-70°
40°-50°

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Workshop Technology
The hot working of metals is carried out

Below the recrystallisation temperature
At the recrystallisation temperature
Above the recrystallisation temperature
At any temperature

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