When should fire hydrants be inspected?

A. Once a year
B. Twice a year
C. Once a month
D. Once every six months

B

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Which of the following is a cryogenic liquid?

A. Argon B. Decane C. Methyl alcohol D. Carbon dioxide

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An infection of the fold of skin at the edge of a nail is called

A) ?paronychia. B) ?onychomycosis. C) ?onychocryptosis. D) ?none of the above

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