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

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

Q:- The dip transfer mode. Of metal transfer uaed for mig/ mag welding is characteristics by

1. Giving deep penetration
2. Being suitable for position welding
3. Giving low spatter
4. All of the above

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

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 does the term high frequency mean when referring to TIG Welding?

A. A high integrity weld is easily achievable 
B. The power source gives a high duty cycle 
C. A high voltage spark is used to initiate the arc 
D. The output from the power source is high