The plugging switch may be driven by gears, by a chain drive, or a ____ coupling.

a. welded half
b. direct rigid
c. welded current
d. direct flexible


d. direct flexible

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If your truck has a properly functioning dual air brake system and minimum size air tanks, the air pressure build up from 85 to 100 PSI within _______ seconds

A. 45 seconds. B. 30 seconds. C. 60 second.

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Which of the following is not a function of water in animals?

A) promotes chemical activity B) regulates temperature C) cleans internal organs D) transports nutrients through the bloodstream

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Seals are used to prevent leakage between moving parts.

Answer the following statement true (T) or false (F)

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Which of the following could you possibly eliminate in order to save money?

A) Some of the overhead doors B) A parts storage area C) A customer entrance D) All of the above E) None of the above

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