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Workshop Technology

Workshop Technology
In forehand welding, the angle between the welding rod and the work is kept as

30°-40°
60°-70°
40°-50°
50°-60°

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

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Workshop Technology
When the dimension is expressed as 20­ -0.025 ⁺⁰∙⁰³⁵, then the basic size is

19.975 mm
20.035 mm
20 mm
20.025 mm

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Workshop Technology
In forehand welding, the angle between the welding torch and the work is ________ as compared to backhand welding.

More
None of these
Same
Less

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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
Cast iron
Aluminium
Copper

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Workshop Technology
In a centrifugal casting method

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

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