An odd electronics test question (SOLVED)
I could really use some help. I am taking an electronics test, and this is one of the questions:
Direct current would NOT ordinarily be used in which of the following?
A. Ships
B. Airplanes
C. Battery Charging
D. Arc Welding
E. Electric clocks
Now I may be totally crazy, but don't all on the list use or are capeable of using both AC & DC? I've pretty much narrowed this down to either battery charging or arc welding, but both of these have AC & DC versions... Battery chargers are typically run on AC, but output DC, though there are the 'quick charge' packs that use entirely dc...
Any help appreciated.
I could really use some help. I am taking an electronics test, and this is one of the questions:
Direct current would NOT ordinarily be used in which of the following?
A. Ships
B. Airplanes
C. Battery Charging
D. Arc Welding
E. Electric clocks
Now I may be totally crazy, but don't all on the list use or are capeable of using both AC & DC? I've pretty much narrowed this down to either battery charging or arc welding, but both of these have AC & DC versions... Battery chargers are typically run on AC, but output DC, though there are the 'quick charge' packs that use entirely dc...
Any help appreciated.
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