Workshop Technology In welding magnesium with TIG arc welding, direct current with ________ is used. None of these Reversed polarity Straight polarity Both (A) and (B) None of these Reversed polarity Straight polarity Both (A) and (B) ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology Linde welding uses Carburising flame and rightward technique Oxidizing flame and leftward technique Neutral flame and rightward technique Neutral flame and leftward technique Carburising flame and rightward technique Oxidizing flame and leftward technique Neutral flame and rightward technique Neutral flame and leftward technique ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology Piercing is an operation of cutting A number of holes evenly spaced in a regular pattern on a sheet of metal A hole (other than cylindrical) in a sheet of metal by the punch and the die A cylindrical hole in a sheet of metal by the punch and the die A flat sheet to the desired shape A number of holes evenly spaced in a regular pattern on a sheet of metal A hole (other than cylindrical) in a sheet of metal by the punch and the die A cylindrical hole in a sheet of metal by the punch and the die A flat sheet to the desired shape ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology The welding set up is said to have straight polarity, when Work is connected to the negative terminal and the electrode holder is earthed Work is connected to the positive terminal and the electrode holder to the negative terminal Work is connected to the positive terminal and the electrode holder is earthed Work is connected to the negative terminal and the electrode holder to the positive terminal Work is connected to the negative terminal and the electrode holder is earthed Work is connected to the positive terminal and the electrode holder to the negative terminal Work is connected to the positive terminal and the electrode holder is earthed Work is connected to the negative terminal and the electrode holder to the positive terminal ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology During hot working of metals Mechanical properties are improved due to refinement of grains All of the listed here Porosity of the metal is largely eliminated Grain structure of the metal is refined Mechanical properties are improved due to refinement of grains All of the listed here Porosity of the metal is largely eliminated Grain structure of the metal is refined ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology In welding copper alloys with TIG arc welding Any one of the listed here Direct current with straight polarity is used Direct current with reversed polarity is used Alternating current is used Any one of the listed here Direct current with straight polarity is used Direct current with reversed polarity is used Alternating current is used ANSWER DOWNLOAD EXAMIANS APP