Workshop Technology In forehand welding, the angle between the welding rod and the work is kept as 30°-40° 40°-50° 50°-60° 60°-70° 30°-40° 40°-50° 50°-60° 60°-70° ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology The operation of cutting a cylindrical hole in a sheet of metal by the punch and die is called Punching Shearing Blanking Piercing Punching Shearing Blanking Piercing ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology In arc welding, the electric arc is produced between the work and the electrode by Flow of current Contact resistance Voltage All of these Flow of current Contact resistance Voltage All of these ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology The sand used for making cores is Oil sand Green sand Loam sand Dry sand Oil sand Green sand Loam sand Dry sand 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 to the positive 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 is earthed Work is connected to the positive terminal and the electrode holder to the negative terminal Work is connected to the negative terminal and the electrode holder to the positive 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 is earthed Work is connected to the positive terminal and the electrode holder to the negative terminal ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology In electric resistance welding, voltage required for heating is 11 to 20 volts 6 to 10 volts 1 to 5 volts 50 to 100 volts 11 to 20 volts 6 to 10 volts 1 to 5 volts 50 to 100 volts ANSWER DOWNLOAD EXAMIANS APP
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