The formula for diametral pitch is ____.
A. DP = N/PD
B. DP = PD/M
C. DP = PD/N
D. DP = M/PD
Answer: A
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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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Materials typically used for cable jackets include neoprene, lead, and _____.
a. polychlorprene b. copper c. PVC d. rubber
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UNDERSTANDING PROCESS EQUIPMENT
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Because humidifiers use water, the evaporative surfaces and water reservoir must be cleaned and sanitized regularly to prevent the distributions of ____ by the moving airstream.
A. fungi B. bacteria C. algae D. All of the above.
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