Welder is a simple e-Book for ITI & Engineering Course Welder. It contains objective questions with underlined & bold correct answers MCQ covering all topics including all about gas welding plant and join MS sheet, different type of joints on MS, different types of joints- Fillet ( T-joint, lap & Corner), Butt (Square & V), oxy- acetylene cutting plant and perform different cutting operations on MS plate, welding in different types of MS pipe joints by Gas welding (OAW), types of MS pipe joints – Butt, Elbow, T-joint, angle (45) joint, flange joint, SMAW machine and perform welding in different types of MS pipe joints by SMAW, Dye penetration test, Magnetic particle test, Nick break test, Free band test, Fillet fracture test, Aluminium & MS pipe joint by GTAW, Plasma Arc cutting machine and cut ferrous & non-ferrous metals, resistance spot welding machine, brazing operation, Cast Iron machine parts Hard facing of alloy steel components and lots more.