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Workshop Technology

Workshop Technology
A zinc diffusion process is called

Sherardizing
Parkerising
Galvanizing
Anodizing

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Workshop Technology
The recrystallisation temperature of steel is

400°C
None of these
800°C
600°C

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Workshop Technology
When filing soft metals, the file teeth are clogged with minute particles of metal. The file should be cleaned by

Washing it with dilute acid
Washing it with water
Rubbing on wood
Using file card

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Workshop Technology
Which of the following welding method uses a pool of molten metal?

Submerged arc welding
TIG arc welding
MIG arc welding
Carbon arc welding

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Workshop Technology
In a centrifugal casting method

No core is used
Core is made of sand
Core is made of nonferrous metal
Core is made of ferrous metal

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Workshop Technology
In welding copper alloys with TIG arc welding

Direct current with reversed polarity is used
Alternating current is used
Any one of the listed here
Direct current with straight polarity is used

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