The purpose of NFPA 70E is to provide a practical safe working area for employees relative to the hazards arising from the use of ____________________.
Fill in the blank(s) with the appropriate word(s).
electricity
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Water pumps ________.
A) Only work at idle and low speeds and are disengaged at higher speeds B) Disengage during freezing weather to prevent radiator failure C) Use engine oil as a lubricant and coolant D) Are driven by the engine crankshaft or camshaft
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How much drop is there in 40 feet at 3% grade?
Fill in the blank(s) with the appropriate word(s).
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What type of magnet depends on flowing current to produce a magnetic field?
A. electromagnet B. permanent magnet C. temporary magnet D. domain magnet
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The ability of a battery to deliver power continuously is expressed in ____.
A. amperes B. hours C. ampere-hours D. coulombs
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