During a performance test of an air conditioning system how long should you let the unit run and stabilize before taking a vent temperature reading?
A. 2 to 3 minutes
B. 3 to 4 minutes
C. 5 to 10 minutes
D. 15 to 20 minutes
Answer: C
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A very thin ____________________ of ____________________ is used to prevent metal-on-metal contact of internal engine parts.
Fill in the blank(s) with the appropriate word(s).
Technician A says one component of the secondary ignition circuit is the coil. Technician B says the coil is a component in the primary ignition circuit. Who is correct?
A. Technician A B. Technician B C. Both A and B D. Neither A nor B
167° 45’ 37” - 45° 55’ 3” = ?
What will be an ideal response?
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.