For grey cast iron, which of the following welding methods is preferable?

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.
• Which of the following welding process in which heat is produced for welding by a chemical reaction?
• 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%.
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• Weld strength in inertia friction welding is more than direct drive friction welding.
• If the open circuit voltage is 60 volt and the short circuit current is 20 amperes. Then determine the voltage required for welding if the current required during welding is 10 amperes?
• What is the only difference between Plasma arc welding and TIG welding?
• In inertia friction welding              energy of welding machine is used.
• For melting of cast iron, which of the following furnace is used?