Answer the following statement(s) true (T) or false (F)
Hysteresis loss is often referred to as molecular friction.
ANSWER: True
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?What would happen if the secondary flame is suddenly moved away from the molten weld pool?
A. ?The pool will cool off. B. ?The molten pool will not have any change because it takes a while for it to cool and become solid. C. ?The torch flame may go out from the sudden movement. D. ?The molten pool would throw off a large number of sparks.
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Indicate whether the statement is true or false
When striking an arc in SMAW, the general rule is that the arc length should be _____
a. twice the diameter of the electrode metal core b. less than the diameter of the electrode metal core c. half the length of the electrode metal core d. the same as the diameter of the electrode metal core