Why is a large refrigerant leak potentially dangerous?
A) Most common refrigerants used in residential systems are highly flammable.
B) Most common refrigerants used in residential systems are highly corrosive.
C) Most common refrigerants used in residential systems are highly toxic.
D) They can replace all of the oxygen, leading to asphyxiation.
D
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In an OBD II vehicle the technician may be able to erase trouble codes without erasing freeze frame data.
Answer the following statement true (T) or false (F)
The _________________________ shows the mathematical or logical relationships and overlapping connections between different groups or sets of information.
Fill in the blank(s) with the appropriate word(s).
The most common wiring type installed in one-family dwellings is ____.
A. metallic-sheathed cable B. nonmetallic-sheathed cable C. unsheathed metallic cable D. fiber-optic cable
The resistance can be adjusted to permit the triac to fire when the AC waveform reaches its peak value. This will cause one-____ of the AC voltage to be dropped across the triac.
A. fifth B. fourth C. third D. half