HVAC BOMA UPDATED ACTUAL Exam
Questions and CORRECT Answers
Two basic categories of chillers are the - CORRECT ANSWER - compression cycle and
absorption
The five requirements for comfort are proper temperature, humidity, filtration, ventilation and? -
CORRECT ANSWER - Circulation
The primary function of an expansion device is to? - CORRECT ANSWER - Produce a
reduction in the pressure on the liquid refrigerant.
Regulate the flow of refrigerant into the evaporator.
Lower the boiling pint of the refrigerant far enough below the temperature of the load to get the
needed heat transfer rate.
The wet-bulb depression is? - CORRECT ANSWER - difference between the dry bulb &
wet bulb temperature.
The dew-point temperature is the? - CORRECT ANSWER - Temperature when the
moisture begins to condense out of the air.
How many BTU's are required to change one pound of ice at 20 degrees Fahrenheit to steam at
220 degrees Fahrenheit? - CORRECT ANSWER - 1,304 BTU/hr
- CORRECT ANSWER - 9 degrees Fahrenheit
- CORRECT ANSWER - Liquid refrigerant
- CORRECT ANSWER - De-superheats the the vapor from the compressor,
Condenses the vapor from the compressor,
Questions and CORRECT Answers
Two basic categories of chillers are the - CORRECT ANSWER - compression cycle and
absorption
The five requirements for comfort are proper temperature, humidity, filtration, ventilation and? -
CORRECT ANSWER - Circulation
The primary function of an expansion device is to? - CORRECT ANSWER - Produce a
reduction in the pressure on the liquid refrigerant.
Regulate the flow of refrigerant into the evaporator.
Lower the boiling pint of the refrigerant far enough below the temperature of the load to get the
needed heat transfer rate.
The wet-bulb depression is? - CORRECT ANSWER - difference between the dry bulb &
wet bulb temperature.
The dew-point temperature is the? - CORRECT ANSWER - Temperature when the
moisture begins to condense out of the air.
How many BTU's are required to change one pound of ice at 20 degrees Fahrenheit to steam at
220 degrees Fahrenheit? - CORRECT ANSWER - 1,304 BTU/hr
- CORRECT ANSWER - 9 degrees Fahrenheit
- CORRECT ANSWER - Liquid refrigerant
- CORRECT ANSWER - De-superheats the the vapor from the compressor,
Condenses the vapor from the compressor,
