The advantage of using an evaporator coil that is an AHRI match for the condensing unit is that
A) Matched systems earn AHRI "Cool Points" which can be redeemed for prizes
B) The performance and efficiency of the system are certified
C) Matched systems do not require EPA certification for installation
D) Matched systems do not require evacuation and charging
B
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When water is present in the fuel tanks of a dual tank, single pickup fuel subsystem, where is it likely to settle?
A. on top of the tank B. emulsify in the fuel C. in the pick-up tube D. crossover pipe
If a TEV is starving, which of the following set of three things must be checked?
a. High suction pressure, low head pressure, and low superheat. b. Superheat adjustment, bulb not strapped to the suction line, and head pressure. c. Ice holding valve open, if bulb is mounted properly, superheat adjustment. d. Ice or debris blocking the valve, liquid at the valve inlet, superheat adjustment.
In a series RLC circuit just above the resonant frequency, the impedance is:
A) at minimum. B) at maximum. C) more capacitive. D) more inductive.
Conventional tolerancing, as described in this textbook, implies dimensioning without the use of geometric tolerancing.
Answer the following statement true (T) or false (F)