What materials are used for refrigerant piping?
What will be an ideal response?
Most refrigeration lines are made of copper. Lines for ammonia systems are made of steel because ammonia chemically reacts with copper. Some systems use aluminum tubing.
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Fire is both a chemical and a physical process
Indicate whether the statement is true or false
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Safety glasses are only required when using test and measurement instruments if your supervisor tells you to wear them.
a. True b. False
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All-wheel-drive systems give the driver the option of 2WD or 4WD.
Answer the following statement true (T) or false (F)
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An electric furnace that runs continuously, regardless of the thermostat setting, probably has:
A) A bad transformer. B) A stuck sequencer. C) An open strip heater. D) An open fusible link.
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