No.	Question	A	B	C	D	Answer
47	Coated electrodes are superior to bare electrodes because	A. they provide maximum protection for the weld metal	B. high current may be used to increase the deposit rate	C. they have improved arc structuring characteristics	D. all of the above	A B C D
48	The size of a coated electrode is determined by the	A. overall diameter	B. ampere setting	C. core diameter	D. A.W.S. classification of electrodes	A B C D
49	The number 60 of a 6010 electrode indicates the electrode's	A. minimum welded tensile strength in thousandths of PSI	B. position	C. type of coating	D. polarity	A B C D
50	The number 1 of a 6010 electrode indicates its	A. tensile strength	B. position	C. type of coating	D. polarity	A B C D
51	Which of the following processes does not involve a consumable electrode	A. electrode slag welding	B. gas metal arc welding	C. gas tungsten arc welding	D. submerged arc welding	A B C D
52	Which electrode is considered non consumable	A. copper	B. steel	C. chromium	D. tungsten	A B C D
53	The primary function of shielding gas in GTAW is to	A. shield the weld	B. deoxidize the weld	C. preheat the weld	D. cool the weld	A B C D
54	Argon and helium gases are considered to be	A. reactive	B. inert	C. reducing	D. oxidizing	A B C D