1-4 The temperature of an are can range between 5500 degree F (3000 degree C) to

Question

1-4

The temperature of an are can range between 5500 degree F (3000 degree C) to above 36, 000 degree F (20, 000 degree C) but most SMAW temperatures are around ___________. 4500 degree F (2500 degree C) 3200 degree F (18000 degree C) 1100 degree F (6100 degree C) 6000 degree F (3300 degree C) The air that circulates through a welding machine should be free of ____ dust, oil, metal filings. All of the above controls the maximum gap the electrons can jump to form the arc. Voltage Amperage Heat Wattage Welding cables made of aluminum wire must be ____ would be required for copper. one size smaller than the same size as one size larger than two sizes larger than

Explanation / Answer

1-d

2-d

3-a

A higher voltage is helpful for jump for a larger gaps. The welding voltage is interlinked with the heat of the arc during welding.

4-c

Aluminium as a conductor is not as good as copper with a given wire size

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