HVAC BOMA 501 (2025) comprehensive questions and verified answers (
tailed & Elaborated) ACTUAL EXAM 2025 TEST 100% Solved 2025!!
A system in which hot air and cold
air are supplied by separate ducts and
mixed at each controlled space to pro-
Dual Duct System
vide the desired supply air temperature.
This method consumes a great deal of
energy.
an a/c system in which the zone control
is obtained by mixing hot and cold air at Muiltizone System
the unit in response to a room thermostat
take the sensible heat and the latent heat
Load Calulations
into consideration
Heat from cooking or hot baths (latent which of the following does not provide
heat has to do with moisture) sensible heat gain?
Transmitted directly to the interior of the
Which of the following is the way that
building, absorbs by glass, reflected into
solar radiation disperses in a building?
the building
infiltration through the walls, infiltration
outside air may get into the air condition-
through the swinging doors, air induced
ing spaces by...
by replaced exhaust
In commercial buildings heat generated
false by lights does not seriously affect the
control of the heating system
the human body's feeling of well being
The body's metabolism
depends upon....
which of the following natural laws has
Boyles' Law, Charles' Law, Dalton's Law the greatest bearing on the science of air
conditioning?
To protect the piping and seal the roof
from refrigeration lines passing through Why is a pitch pocket commonly used?
it
Which of the following is an evapora-
a cooling tower governed by web bulb
tive type condenser and what governs its
temperature
cooling?
1/8
, HVAC BOMA 501 (2025) comprehensive questions and verified answers (
tailed & Elaborated) ACTUAL EXAM 2025 TEST 100% Solved 2025!!
on an evaporative condenser what is the
to separate the moisture carry over
purpose of the eliminator
the amount of heat necessary to raise
the temperature of one pound of a sub- specific heat of a substance
stance one degree Fahrenheit
the amount of heat necessary to change
a liquid to a vapor with no change in Latent Heat
temperature
pumps pump liquid, fans and compres- The difference between a pump, a fan
sors pump air and a compressor is....
Check the blower belts for cracks and
Which of the following checks should be
wear, check the motor bearings for wear,
made of a blower-drive?
check the blower bearings for wear
air filters should be of the size and type
Which of the following is a good rule to
recommended by the equipment manu-
follow when checking air filters?
facturer
A winding will run hotter, the motor will
When one of the three phases of a motor
(generally) not start, the two phases will
fails, how will the motor react?
draw 1.5 (1 1/2) times more current
When megohming a motor winding what
1000 ohms/volt is the rule of thumb to find an acceptable
range of resistance to ground?
High pressure drop thru ducts and fit- Which of the following may be the cause
tings, dirty filters, incorrect fan speeds of improper air distribution?
in elbows, along duct walls, with increase Friction losses of pressure in ducted sys-
in air speed tems occur.....
Loose belt drive, restricted air intake, im- Which of the following may cause faulty
proper fan bearing lubrication fan operation?
What is the first step taken in all trou-
Analyze the complaint
bleshooting processes?
If the complaint is 'too little heat' and
the thermostat is out of adjustment the burner is short-cycling the most likely
cause is....
improper burner adjustment 2/8
tailed & Elaborated) ACTUAL EXAM 2025 TEST 100% Solved 2025!!
A system in which hot air and cold
air are supplied by separate ducts and
mixed at each controlled space to pro-
Dual Duct System
vide the desired supply air temperature.
This method consumes a great deal of
energy.
an a/c system in which the zone control
is obtained by mixing hot and cold air at Muiltizone System
the unit in response to a room thermostat
take the sensible heat and the latent heat
Load Calulations
into consideration
Heat from cooking or hot baths (latent which of the following does not provide
heat has to do with moisture) sensible heat gain?
Transmitted directly to the interior of the
Which of the following is the way that
building, absorbs by glass, reflected into
solar radiation disperses in a building?
the building
infiltration through the walls, infiltration
outside air may get into the air condition-
through the swinging doors, air induced
ing spaces by...
by replaced exhaust
In commercial buildings heat generated
false by lights does not seriously affect the
control of the heating system
the human body's feeling of well being
The body's metabolism
depends upon....
which of the following natural laws has
Boyles' Law, Charles' Law, Dalton's Law the greatest bearing on the science of air
conditioning?
To protect the piping and seal the roof
from refrigeration lines passing through Why is a pitch pocket commonly used?
it
Which of the following is an evapora-
a cooling tower governed by web bulb
tive type condenser and what governs its
temperature
cooling?
1/8
, HVAC BOMA 501 (2025) comprehensive questions and verified answers (
tailed & Elaborated) ACTUAL EXAM 2025 TEST 100% Solved 2025!!
on an evaporative condenser what is the
to separate the moisture carry over
purpose of the eliminator
the amount of heat necessary to raise
the temperature of one pound of a sub- specific heat of a substance
stance one degree Fahrenheit
the amount of heat necessary to change
a liquid to a vapor with no change in Latent Heat
temperature
pumps pump liquid, fans and compres- The difference between a pump, a fan
sors pump air and a compressor is....
Check the blower belts for cracks and
Which of the following checks should be
wear, check the motor bearings for wear,
made of a blower-drive?
check the blower bearings for wear
air filters should be of the size and type
Which of the following is a good rule to
recommended by the equipment manu-
follow when checking air filters?
facturer
A winding will run hotter, the motor will
When one of the three phases of a motor
(generally) not start, the two phases will
fails, how will the motor react?
draw 1.5 (1 1/2) times more current
When megohming a motor winding what
1000 ohms/volt is the rule of thumb to find an acceptable
range of resistance to ground?
High pressure drop thru ducts and fit- Which of the following may be the cause
tings, dirty filters, incorrect fan speeds of improper air distribution?
in elbows, along duct walls, with increase Friction losses of pressure in ducted sys-
in air speed tems occur.....
Loose belt drive, restricted air intake, im- Which of the following may cause faulty
proper fan bearing lubrication fan operation?
What is the first step taken in all trou-
Analyze the complaint
bleshooting processes?
If the complaint is 'too little heat' and
the thermostat is out of adjustment the burner is short-cycling the most likely
cause is....
improper burner adjustment 2/8
