What does the low temperature thermostat do?

A) it starts the system when the temperature outside reaches 35°F
B) it controls the flow of chilled water through the coil
C) it controls steam flow through the pre-heat coil
D) when it senses a temperature below 35°F it shuts down the blower


D

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The surface of a grinding wheel that is intended for use is called the ____________________

Fill in the blank(s) with the appropriate word(s).

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