How do evaporators in medium-temperature refrigeration cases normally defrost?
A) The case air circulates over the coil while the compressor is off.
B) Electric heaters built into the evaporator coil
C) Hot gas is bypassed around the condenser straight into the evaporator.
D) Small defrost gas burners
A
You might also like to view...
In simple beams, stirrups are used to resist _____.
a. diagonal tension b. upward thrust c. compression stress d. metal fatigue
The original Smokey Bear was actually a survivor of a forest fire
Indicate whether the statement is true or false
The difference between a cereal crop and a grain crop is that grain crops include nongrasses
Indicate whether the statement is true or false
The ozone layer is located:
A. Between 1 to 3 miles (1.6 to 4.8 km) above the earth's surface B. Between 0 and 7 miles (0 to 11 Km) above the earth's surface C. Between 7 and 30 miles (11 to 48 km) above the earth's surface D. Between 30 and 300 miles (48 to 482 km) above the earth's surface