The manufacturer's data on a split AC system indicates that the normal temperature drop should be 15F at the current operating conditions. If the evaporator entering air temperature is 80F and the leaving air temperature is 55F, the technician knows that the system
A) Is working great, even better than manufacturer's specifications
B) Most likely is overcharged because it is cooling better than it is supposed to
C) Most likely has low air flow because of the higher than normal temperature drop
D) Most likely has higher than normal airflow because of the higher than normal temperature drop
Q. 2What is a practical use for knowing a substance's triple point?
A) Calibrating thermometers using the triple point temperature
B) Understanding the practical operating limits of a refrigeration system
C) Understanding that a system may not be charged past the triple point of the refrigerant being used
D) Triple point is a purely theoretical concept which cannot be actually achieved.
Q. 3Three general areas of problems in air conditioning systems include electrical problems, mechanical problems, and
A) Communication problems B) Wiring problems
C) Airflow problems D) Undercharge problems
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