Absorption chillers move refrigerant using
A) heat from steam, hot water, or gas B) reciprocating compressors
C) large centrifugal compressors D) steam driven turbines
Q. 2How does the water vapor from the lithium bromide solution return to the evaporator?
A) It condenses in the heat exchanger. B) It condenses in the chiller.
C) It passes through the condenser. D) It passes through the chiller.
Q. 3What is the purpose of checking the supply voltage after starting the system?
A) To determine the refrigeration coefficient of performance, crop
B) To determine which power leg is positive and which is negative
C) To verify that the supplied voltage is within the manufacturer's specifications
D) To determine the voltage drop in the wire
Q. 4To avoid freezing the water in the chiller during recovery
A) Circulate the chiller water B) Add nitrogen to the chiller
C) Turn off the condenser water pumps D) Operate the chiller
Q. 5How often should the water handling components of an ice machine be cleaned?
A) Monthly
B) Annually
C) Weekly
D) The water handling components of an ice machine do not need cleaning.
Q. 6The cells on most electronic air cleaners can be cleaned:
A) By spraying them in place with an air conditioning coil cleaner.
B) By spraying them in place using a solvent that is certified to be high in volatile organic compounds.
C) In the dishwasher.
D) With a fine grit emery cloth.
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