50) Which is the weld position of GMA welding if the filler metal is deposited from the upper side of the joint during welding?

51) What is the type of weld position in which the weld metal is deposited under side of the joint?

52) What is the usual torch angle tilt on either side of vertical in GMAW?

53) What is the electrode inclination to the metal surface in T-joint welding of 10 mm thickness metal by down hand position?

54) What is the usual length of tack weld in a T-joint in GMAW flat position welding?