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Workshop Technology

Workshop Technology
The temperature produced by oxy-hydrogen flame is about

1800°C
2100°C
2400°C
3200°C

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

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

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Workshop Technology
According to Indian standards, the total numbers of tolerance grades are

20
12
8
18

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Workshop Technology
The upsetting is a process of

Reducing the cross-section of a bar
Joining the two surfaces of metal under pressure after heating
Bending of a bar
Increasing the cross-section of a bar

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Workshop Technology
In a ___, the molten metal is poured and allowed to solidify while the mould is revolving.

Centrifugal casting method
Permanent mould casting method
Slush casting method
Die casting method

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Workshop Technology
Cold working of metal increases

All of these
Yield strength
Tensile strength
Hardness

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