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Q:-Which of the following welding processes. Uses to resistance spot welding?

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1. Electro slag welding
2. Resistance spot welding
3. Tig
4. Mag

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Q:-With reference to the various grades of stainless steel which of the following statement is true?

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1. They are all nonmagnetic
2. Only certain grades can be used for service at a very low temperature
3. They are all 100 ar for the mag
4. They are all very high thermal conductivity

Q:-What is meant by the term duty cycle?

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A. How long a welder can weld for in a given period
B. The amount of time the electrodes are being used
C. The amount of time a welding machine can be weld
D. The amount of electricity being consumed