HVAC Pretest BOMA Exam Questions With Correct Answers
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Course
BOMA
Institution
BOMA
HVAC Pretest BOMA Exam Questions With
Correct Answers
Two basic categories of chillers are the ___.
a. Compression cycle and absorption
b. purge and absorption
c. absorption and lithium bromide
d. purge and lithium bromide - answera. Compression cycle and absorption
The five requirements for...
d. when the air is saturated with moisture - answer✔a. the difference between the dry-bulb and wet-
bulb temperatures
The dew-point temperature is the ___.
a. temperature when the air is saturated with moisture
b. temperature when the moisture begins to condense out of the air
c. difference between the dry-bulb and wet-bulb temperatures
d. temperature of the air at 50% relative humidity - answer✔b. temperature when the moisture begins
to condense out of the air
How many Btus are required to change one pound of ice at 20°F to steam at 220°F?
a. 1,304 Btu/h
b. 2,608 Btu/h
c. 6,520 Btu/h
d. 3,912 Btu/h - answer✔a. 1,304 Btu/h
If an R-12 refrigeration system is operating with a 25.4 psig suction pressure, what is the evaporator
superheat if the evaporator outlet temperature is 34 degrees F.
a. 9°F
b. 59°F
c. 34°F
d. 25°F - answer✔a. 9°F
On an R-11 or R-123 system, the refrigerant removal process normally starts with the removal of ____.
c. subcools the liquid refrigerant before it leaves the condenser
d. all of the above - answer✔d. all of the above
The human body gives off heat by which of the following?
a. convection
b. radiation
c. conduction
d. all of the above - answer✔d. all of the above
If the temperature remains constant and the volume that a gas occupies increases, the pressure will
____.
a. decrease
b. increase
c. remain the same
d. cannot be determined from the information given. - answer✔a. decrease
Transformers are rated using ___.
a. volt-amperes
b. volt-ohms
c. amperes-ohms
d. volt-resistance - answer✔a. volt-amperes
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