Chapter 5: SMAW questions with correct answers

True or False: An SMAW station has a constant voltage welding power source? CORRECT ANSWER false True or False: Three types of AC power sources are transformer, engine-driven generator and inverter? CORRECT ANSWER true True or False: When a welding machine is used at a higher current setting, the duty cycle decreases? CORRECT ANSWER true A coating of material over a weld that prevents the air from contacting the hot metal and allows the weld to cool more slowly is called? CORRECT ANSWER slag If the number ____ appears in the last digit of an AWS electrode classification number, the electrode is designated as a low-hydrogen electrode. CORRECT ANSWER 5,6 or 8 Electrode with high iron-powder content have the number _____ before the last digit. CORRECT ANSWER 2 True or False: ENiCu-B is a nickel based electrode used to weld cast iron CORRECT ANSWER false