Which of the following prefixes is used to express a millionth of any value?
A. milli
B. micro
C. nano
D. pico
Answer: B
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Transformers in which the primary and secondary voltages are 180 degrees out of phase are known as _____.
a. unlike-wound transformers b. like-wound transformers c. unequal transformers d. step-up transformers
A decreased pressure will change some ____________________ (gas/es, liquid/s) into a ____________________ (gas/es, liquid/s).
Fill in the blank(s) with the appropriate word(s).
Traverse rate is the rate of speed at which a load moves in a contouring position system.
Answer the following statement true (T) or false (F)
A system of feeders and branch circuits supplying power for lighting, receptacles, and equipment essential for life safety that is automatically connected to alternate power sources by one or more transfer switches during interruption of the normal power source is called a ____.
A. vital systems backup B. critical branch C. life safety branch D. safety backup