HVAC BOMA 501 Actual Exam Version 1,2 & 3
Questions and Answers Already Graded A+ 2025
what is the most probable cause of a burner to not start? -CORRECTANSWER power
failure
when the complaint is 'too much heat' and the heat element operates continuously the
most likely cause is.... -CORRECTANSWER faulty control wiring
if the complaint is 'too much heat' and the electrical wiring is short-cycling the most likely
cause is... -CORRECTANSWER the thermostat heat anticipator is set too low
In case of an electrical heating system not starting, the most likely cause is... -
CORRECTANSWER a blown fuse
A psychrometric chart is a graph representation of... -CORRECTANSWER
thermodynamic properties
Heat flows in one direction usually from.... -CORRECTANSWER a position of higher
temperature to a position of lower temperature
the three main ways heat transfer takes place are... -CORRECTANSWER convection,
conduction, radiation
, which of the following material is the best conductor of heat? -CORRECTANSWER
metal
heat will continue to flow between two bodies until they are the same.... -
CORRECTANSWER temperature
enthalpy refers to... -CORRECTANSWER heat content of a refrigerant (both latent AND
sensible)
Psychometric is the science of dealing with the relationship between... -
CORRECTANSWER humidity and the atmosphere
which of the following is not one of the four environmental qualities provided by
complete air conditioning systems? -CORRECTANSWER electrostatic suppression
translated into degrees Fahrenheit which is the value of absolute zero? -
CORRECTANSWER minus 460 degrees Fahrenheit (-460F)
when water vapor is considered in a relationship of air, which of the following
statements is most nearly correct? -CORRECTANSWER Mixing air on a mechanical
basis causes a humid condition
Questions and Answers Already Graded A+ 2025
what is the most probable cause of a burner to not start? -CORRECTANSWER power
failure
when the complaint is 'too much heat' and the heat element operates continuously the
most likely cause is.... -CORRECTANSWER faulty control wiring
if the complaint is 'too much heat' and the electrical wiring is short-cycling the most likely
cause is... -CORRECTANSWER the thermostat heat anticipator is set too low
In case of an electrical heating system not starting, the most likely cause is... -
CORRECTANSWER a blown fuse
A psychrometric chart is a graph representation of... -CORRECTANSWER
thermodynamic properties
Heat flows in one direction usually from.... -CORRECTANSWER a position of higher
temperature to a position of lower temperature
the three main ways heat transfer takes place are... -CORRECTANSWER convection,
conduction, radiation
, which of the following material is the best conductor of heat? -CORRECTANSWER
metal
heat will continue to flow between two bodies until they are the same.... -
CORRECTANSWER temperature
enthalpy refers to... -CORRECTANSWER heat content of a refrigerant (both latent AND
sensible)
Psychometric is the science of dealing with the relationship between... -
CORRECTANSWER humidity and the atmosphere
which of the following is not one of the four environmental qualities provided by
complete air conditioning systems? -CORRECTANSWER electrostatic suppression
translated into degrees Fahrenheit which is the value of absolute zero? -
CORRECTANSWER minus 460 degrees Fahrenheit (-460F)
when water vapor is considered in a relationship of air, which of the following
statements is most nearly correct? -CORRECTANSWER Mixing air on a mechanical
basis causes a humid condition
