Leaks in air-conditioning systems must be repaired if they have an annual leak rate of:
A) 10 percent of the charge per year. B) 15 percent of the charge per year.
C) 25 percent of the charge per year. D) 35 percent of the charge per year.
Question 2
When drawing a PH diagram of an operating system, how is placement of the metering device line determined?
A) The metering device line starts where the condenser line crosses the temperature of the liquid line and then drops straight down until it crosses the evaporator line.
B) The metering device line starts where the condenser line crosses the temperature of the liquid line and then goes straight across until it crosses the compressor line.
C) The metering device line starts where the condenser line crosses the temperature of the liquid line and then drops straight down until it crosses the compressor line.
D) The metering device line starts where the compressor line crosses the temperature of the liquid line and then drops straight down until it crosses the condenser line.
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