____ is a highly effective an oxygen-depleting gas used to extinguish all types of fires.

A. Zenon
B. Oxygen
C. Halon
D. Argon


Answer: C

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The alternating current supplied to residences has a frequency of ____________________Hz.

Fill in the blank(s) with the appropriate word(s).

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The mud puppy is fairly common in the Eastern and Central United States

Indicate whether the statement is true or false

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Sunscald is especially troublesome for evergreens planted on which side of a building?

a. north c. south b. east d. west

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What is the resolution, in percent, of a 12-bit DAC?

A) 0.000488 B) 0.024 C) 0.083 D) 8.33

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