What is the total system charge for a system with a factory charge of 56 oz of R-410A, and assumed length of 15 ft, and a 3/8 in liquid line that is 35 ft long?
A) 94 oz total system charge B) 68 oz total system charge
C) 86 oz total system charge D) 72 oz total system charge
B
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The three layers of membranes that develop after the third day of incubation are ____________________, chorion, and amnion.
Fill in the blank(s) with the appropriate word(s).
Technician A says that most fuel injection systems use the PCM to control the pulsing of the fuel injectors. Technician B says that most fuel injection systems use the PCM to control the operation of the fuel pump relay. Which technician is correct?
A) Technician A only B) Technician B only C) Both Technicians A and B D) Neither Technician A nor B
What types of compressors are commonly used for large chillers?
A) rotary and scroll B) diaphragm and bellows C) rotary and reciprocating D) centrifugal and screw
Which of the following is NOT true?
A) When troubleshooting sensors, the state of the contacts can be manually changed. B) When troubleshooting sensors, the velocity of parts passing the sensor should be verified. C) When troubleshooting sensors, the proper power levels should be verified. D) When troubleshooting sensors, the proper sensing distance should be verified.