| Pre-Qualification Quiz
Every single one of these questions are very important to your customers. Go ahead and test yourself and your employees!
Questions:
1. When a scroll compressor does not start when it should, the starting voltage may be below the minimum starting voltage of _____Volts.
2. Every 1 PSIG of suction pressure lost in an R-22 suction line results in a total system capacity loss of ___%.
3. Every 1 PSIG of suction pressure lost in a R-410A suction line results in a total system capacity loss of ___%.
4. R-410A uses POE oil. POE oil will begin to break down into organic acid when the moisture content of the system reaches ______ ppm. A sight glass can warn a technician prior to the acid forming. (True False)
5. For every 1 foot liquid R-22 is lifted via a liquid line to the evaporator coil, there is a corresponding pressure loss of _____ PSIG which could cause flash gas to form in the liquid line.
6. When air volume is lower than it should be, a piston metering device equipped evaporator coil will have a suction vapor superheat level that is too _______.
7. If the temperature of a compressor discharge line is measured within 6 inches of the compressor shell, the line temperature considered to be danger or at a level where oil breakdown could occur is ________F.
8. ECM Motors always deliver the air volume they were programmed to deliver if the green light is blinking the proper sequence. (1 blink per 100CFM.) (True False)
9. When measuring external static pressure on a gas furnace system where there is an A coil located on top of the furnace, the high port of the differential manometer should be positioned_________________________________.
10. If the system is using R-22 refrigerant and the liquid line pressure is 220 PSIG with a 100F liquid line, the liquid subcooling level is ________F.
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