How many 250-foot rolls of BX cable are needed if a job requires a total of 5,250 feet?
Fill in the blank(s) with the appropriate word(s).
21
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The ____ allows electricians to measure walls, wire, lengths, and widths in order to do their work accurately.
a. ruler b. calculator c. level d. tape measure
____________________ or internal combustion engines tend to increase efficiency (producing more power per unit of fuel consumed) as their operating temperatures increase until some upper limit is reached.
Fill in the blank(s) with the appropriate word(s).
The Anasazi lived in what part of the United States?
a. Southwest c. Northwest b. Southeast d. Northeast
In a diode that is ____ biased, the negative terminal of the external voltage source is connected to the N material, and the positive terminal is connected to the P material.
A. reverse B. forward C. minimum D. maximum