Arc welding machine uses only D.C. supply.

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?
• Arc length in arc welding should be equal to ___
• In arc welding, arc initiation voltage is of the order
• In arc welding, the three elements to be controlled to obtain satisfactory welding operation are
• During the welding power require to produce arc to join the metals are
• In arc welding voltage is dependent of _____
• The process of carbon arc welding is not used for which of the following material?
• With an increase in the heatinput of arc welding method, how does it affectthe required current?
• 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