Water conditions that must be monitored to keep a cooling tower system working properly include:
A) pH, mineral content, and biological growth.
B) Incoming water pressure, sump water level, and sump water pump inlet pressure.
C) Isothermal capacity, density, and opacity.
D) Ambient temperature and relative humidity.
A
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Indicate whether the statement is true or false
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Technician A says that horn frequency can range from 1,800 to 3,550 Hz. Technician B says that most horn circuits use a relay and the current through the relay coil is controlled by the horn switch. Which technician is correct?
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