Technician A says that a zener diode emits visible light. Technician B says that a forward-biased diode describes a diode that is blocking the flow of electric current. Who is correct?
A. A only
B. B only
C. Both A and B
D. Neither A nor B
Answer: D
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In the average year-round installation, the cooling mode will require more cfm than the heating mode.
Answer the following statement true (T) or false (F)
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A pedon is a three-dimensional field unit occupying about 1000 square meters (1 hectare) of land area
Indicate whether the statement is true or false
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From 2010 onward, what type of electronic fuel injection is used in most EPA approved light duty diesel engines?
A. Electronic unit injectors (EUI). B. Hydraulic electronic unit injectors (HEUI). C. Subcompact nozzle injectors. D. Common Rail (CR).
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The width of a header for a window or door rough opening is usually equal to the width of the _____.