What is the efficiency of an A.C. welding transformer?

Related MCQs

• Match the following 1. Seam welding 1.rods and pipes of uniform cross section 2. Butt welding 2. Welding satellite tips to tools 3. Percussion welding 3. ERWpipeswelding Which of the following is true?
• In welding symbol, if the symbol is above the baseline then the welding is to be done at
• Where the welding symbol is placed when the welding is to be done at the arrow side
• In arc welding, the three elements to be controlled to obtain satisfactory welding operation are
• Which of the following is an example of plastic welding?
• Which of the following is an example of fusion welding?
• The voltage needed in resistance welding does not depend upon
• In resistance welding, two electrodes are made of
• Arc welding machine uses only D.C. supply.
• Which of the following materials are not suited for cold welding?