Refrigeration units have their own engines and may be powered by
A. gasoline
B. diesel fuel
C. liquefied petroleum gas
D. all of the above
Answer: D
You might also like to view...
Welding inspectors are often required to hold a special certification such as the one supervised by the American Welding Society known as ____.
A. Certified Welding Expert (CWE) B. Registered Welding Inspector (RWI) C. Certified Welding Inspector (CWI) D. Registered Welding Professional (RWP)
Budding should be done during the spring or fall when the bark separates easily from the wood
Indicate whether the statement is true or false
Why should liquid refrigerant not be introduced into an evacuated chiller?
A) The liquid can flash at sub-freezing temperatures and freeze the chiller bundles. B) Liquid charging is slow and chillers hold a lot of refrigerant. C) The liquid refrigerant might boil and overheat the water in the chiller. D) Adding refrigerant would ruin the vacuum.
Sequential energizing of an ECM's motor windings provide _____
a. protection from single-phasing b. rotation of the rotor c. protection from voltage spikes d. AC voltage rectification