Home
Earn $100 Online Daily. Work From Home. Click Here

What is the correct answer?

4

In welding magnesium with TIG arc welding, direct current with _________ is used.

A. Straight polarity

B. Reversed polarity

C. Both (A) and (B)

D. None of these

Related Questions

In piercing operation, the clearance is provided on The increase in hardness due to cold working, is called The cold working of metals is carried out In order to cut mild steel, the cutting angle of chisel should be In order to get uniform thickness of the plate by rolling process, one… In sheet metal work, he cutting force on the tool can be reduced by Carburising flame is used to weld The cold chisels are made from The temperature of oxy-hydrogen flame is _________ oxyacetylene flame. In a unilateral system of tolerance, the tolerance is allowed on The material which can be best cut with oxygen cutting process is In sheet metal blanking, shear is provided on punches and dies so that In electric resistance welding, pressure applied varies from The cold chisels are made by A file removes the metal during The metal is subjected to mechanical working for When a hole or cavity to be cored is not in line with the parting surface,… The instrument used to measure external and internal diameter of shafts,… Cast iron and steel pipes are produced by Thermit, used in Thermit welding, is a mixture of The minimum size of a bloom is Structural sections such as rails, angles, I-beams are made by In a cold chamber die casting machine The current in electric resistance welding can be regulated by The upsetting is a process of The maximum flame temperature occurs In forehand welding, the angle between the welding torch and the work… Shift is a casting defect which Which of the following statement is wrong? The blank diameter used in thread rolling will be