When reassembling a valve, handle ________ carefully to avoid nicking or damaging them
A) flanges and gaskets B) seals and O-rings
C) solenoids and electrical leads D) locks and tags
B
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What are the three methods used for the stripping and tinning of various sizes of wire?
What will be an ideal response?
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The component labeled 7 in Figure 1 is a(n) _____.
a. end seal b. power connection c. splice/tee connection d. thermostat
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The most abundant of the criteria air pollutants is
a. SO2 b. NO2 c. CO2 d. O3 e. CO
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When doing a quantity takeoff, the last step is to _____
a. list the materials specified for each system b. total the quantities per category of material c. determine the scope of the work to be done d. review the specifications and seek clarification, if necessary HVAC
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