What is the normal charge on a residential diaphragm type of expansion tank?
A) 60 psig B) 160 psig C) 30 psig D) 12 psig
D
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CSIRT is an acronym for ____________________.
Fill in the blank(s) with the appropriate word(s).
Adding up to 10% ethanol to gasoline can also increase the fuel's ________
A) A/F ratio B) Temperature C) Volatility D) Color
Which legal framework calls for a prohibition on venting ozone-depleting refrigerants,restrictions on the sale of ozone-depleting refrigerants, and certification of recycling and recovery equipment and technicians?
A) Kyoto Accord B) Montreal Protocol C) Geneva Convention D) Title VI of the Clean Air Act
A technician needs to check the heating operation of a heat pump that has no gauge access ports. The technician should start by:
A) Installing bolt-on piercing valves on both the gas line and the liquid line. B) Recovering the system refrigerant using piercing pliers and installing permanent braze-on service valves. C) Checking the temperature rise across the indoor coil. D) Installing bolt-on piercing valves on both the high side and low side of the compressor.