Preheating is usually done while welding

Related MCQs

• In gas welding, the welding rods of 30 mm diameter are available. What will be the maximum thickness of material that can be welded with this rod?
• During arc welding the welding speed is too low, it is likely to result in
• In arc welding as the thickness of the material to be welded increases, the welding current requirement
• Thermit welding differs from other methods of welding in the following way
• For ultrasonic welding the thickness of metal is usually restricted to
• The welding of steel structures on the site of a building is done by
• Point angle of drill is usually more while drilling
• While using high speed steel tools on lathe the speed of chuck will be lowest while machining
• In ultrasonic welding the frequency range is generally
• In gas welding using oxygen and acetylene cylinders the pressure of gas is more in