During an AC performance test, an R-134a air conditioning system has a measured center duct outlet temperature of 59 degrees F. A manifold gage set shows low side pressure ranges between 35-45 psi and the high side pressure ranges from 250-400psi. Shop Temperature is 72 degrees F. What is most likely the cause?
a. The system has insufficient charge and may be leaking
b. The system contains air with the refrigerant
c. The TXV is restricted and not allowing enough refrigerant to flow
d. The compressor is defective
B. The system contains air with the refrigerant
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Using the graph below, if firms pay the costs of abatement but suffer none of the damages from pollution, they level of pollution that they would voluntarily choose to abate is ________.
Edge banding is commonly applied with a(n) _____.
a. stapler b. bander c. iron d. special screws
Lambing typically occurs in the fall months
Indicate whether this statement is true or false.
The voltage rating of a capacitor _____.
A. can be exceeded as long as the time is under one hour B. should never be exceeded C. is only a suggested maximum D. is a minimum working voltage