What is the total system charge for a system with a factory charge of 56 oz of R-410A, an assumed ...

What is the total system charge for a system with a factory charge of 56 oz of R-410A, an assumed length of 15 ft, and a 3/8 in liquid line that is 35 ft long?

A) 56 oz B) 56 oz + 12 oz = 68 oz
C) (35 - 15 ) 0.6 = 12 oz D) 56 oz + 21 oz = 77 oz

[Ques. 2] Which part will need to be cleaned if there is excessive soot buildup?

A) Chimney connector B) Oil tank
C) Suction line D) Bypass plug

[Ques. 3] Fault isolation diagrams and troubleshooting tables help the technician locate problems through the process of:

A) Sublimation. B) Elimination. C) Extrapolation. D) Interpolation.

[Ques. 4] The dampers on registers are normally not used for balancing the system airflow because:

A) They are more difficult to adjust than dampers in the duct system.
B) They do not seal off tightly enough to be used for balancing dampers.
C) They will produce excessive noise in the space.
D) Most registers do not have integral dampers.

[Ques. 5] The first step in troubleshooting a system is:

A) Replacing defective components.
B) Recognizing what component is operating incorrectly.
C) Understanding the system operational sequence.
D) Testing to isolate the cause.

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What is the total system charge for a system with a factory charge of 56 oz of R-410A, an assumed ...

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