Which refrigerant is most commonly used in current reefer trailers?
a. propane
b. R-22
c. R-134a
d. R-12
Answer: b. R-22
Trades & Technology
You might also like to view...
In Figure 17-7, explain why TIC-100 has closed the valve.
What will be an ideal response?
Trades & Technology
What is the total resistance of a two-wire circuit that spans a distance of 200' each way if the resistance per 1,000' is 1.21 ohms?
a. 0.245 ohm b. 0.266 ohm c. 0.310 ohm d. 0.484 ohm
Trades & Technology
Ambient temperature is ____.
a. the chilled water system temperature b. the hot water system temperature c. 212°F d. the temperature of the air surrounding something
Trades & Technology
Ocean water is not useful in its present state because of its high salt content
Indicate whether the statement is true or false
Trades & Technology