A(n) ____ is a group of characters, such as a name.
A. array
B. string
C. scalar
D. hash
Answer: B
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What is one of the highest risks in the operation of reactors?
a. Leaks b. Runaway reactions c. Loss of cooling system d. Loss of heating system
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Flexible liners offer what advantage over rigid liner pools?
a. greater pool depth b. wider pools c. more level edge d. more choices of shapes
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NEC identifies ____ types of rigid PVC conduit.
A. two B. three C. five D. ten
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Refrigeration units have their own engines and may be powered by
A. gasoline B. diesel fuel C. liquefied petroleum gas D. all of the above
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