Which of the following is TRUE of the fan switch?
A) The fan switch starts the blower when the burner starts.
B) The fan switch is not separate from the burner.
C) Modern fan switches cycle the fan based on time.
D) The fan switch relies on a temperature cycle in modern furnaces.
C
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Which of the following 1-year investments has the highest rate of return: $12,500 that yields $1125 in interest, $56,000 that yields $6160 in interest, or $95,000 that yields $7600 in interest?
What will be an ideal response?
In most commercial air handlers:
A) The air passes through the unit twice: once for the blower and another time for the coil. B) The blower forces the air across the coil. C) The blower draws the air across the coil. D) The blower and coil are located in separate component parts of the system.
Females within a species produce the same amount of milk no matter how many progeny they are nursing.
Answer the following statement true (T) or false (F)
At what pressure do most residential relief valves open?
A. 20 B. 30 C. 40 D. 50