To use the electronic leak detector, the system must contain at least some refrigerant. If the system is operating with a small leak, plenty of pressurized refrigerant is left in the system. But if the system is void of refrigerant, it must first be pressurized with __________, to which a trace of refrigerant has been added.
A. halogen
B. hydrogen
C. nitrogen
D. oxygen
Answer: C
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A device called a ____ provides a reliable method of terminating a high-voltage cable.
A. lighting arrester B. pothead C. grounding bus D. secondary bus
The minimum power required to drive the pump is nearest:
The problems in this mini-exam pertain to the simple Rankine cycle shown. The various variations to this cycle depend
primarily on the temperature and pressure leaving the boiler and the pressure leaving the turbine. The mass flow rate is
20 kg/s.
A) 160 kW
B) 180 kW
C) 200 kW
D) 220 kW
Milk is drawn from the cow to a holding tank where it is rapidly cooled, then frozen.
Answer the following statement true (T) or false (F)
What are the three major tools commonly used to troubleshoot the various electrical components of a refrigeration system?
What will be an ideal response?