This quiz has been taken 289 times, 96 times on Dengarden and 193 times on other sites.
Average score: 73%
Which of the following is NOT a refrigerant gas?
The correct answer is "HGH"
What term describes the cooling capacity of an A/C unit?
The correct answer is "Tons"
How many times a year should you add refrigerant to your system?
The correct answer is "None. Only if there's a leak and I've had it fixed."