Electrodes used in spot welding are made up of which material?

Related MCQs

• If the total efficiency is 0.35 in arc welding. Then what is the welding speed in mm/sec if the cross-sectional area is 5mm2, welding power is 2 kW and the heat required in melting the metal is 100 J/mm3.
• Consider a situation in which a welding operation is being performed with V = 20 volts, I = 200 A, and the cross-sectional area of the weld bead is 30 mm2. Estimate the welding speed if the workpiece and electrode are made of (a) aluminum, (b) carbon steel, and (c) titanium. Use an efficiency of 75%.
• In resistance welding, between the electrodes, the nature of current and voltage parameters being used?
• The maximum diameter of electrodes being used in submerged arc welding?
• Which of the following welding process in which two pieces to be joined are overlapped and placed between two pointed electrodes?
• In which of the following welding processes we use two non-consumable electrodes?
• Which of the following method is not used in applying pressure in spot welding process?
• In inertia friction welding energy of welding machine is used.
• In inertia friction welding              energy of welding machine is used.
• What is the maximum power supply needed for the working of spot welding process?