HVAC BOMA 501 EXAM || MOST RECENT EXAM 2026-2027
ACTUAL COMPLETE REAL EXAM QUESTIONS AND
CORRECT ANSWERS (VERIFIED ANSWERS) ALREADY
GRADED A+ | GUARANTEED SUCCESS!! NEWEST EXAM |
JUST RELEASED!!
When one of the three phases of a motor fails, how will the
motor react? - ANSWER -A winding will run hotter, the motor
will (generally) not start, the two phases will draw 1.5 (1 1/2)
times more current
When megohming a motor winding what is the rule of thumb to
find an acceptable range of resistance to ground? - ANSWER -
1000 ohms/volt
Which of the following may be the cause of improper air
distribution? -
ANSWER -High pressure drop thru ducts and fittings, dirty
filters, incorrect fan speeds
Friction losses of pressure in ducted systems occur..... -
ANSWER -in elbows,
along duct walls, with increase in
air speed
Which of the following may cause faulty fan operation? -
ANSWER -Loose belt
,drive, restricted air intake, improper fan
bearing lubrication
What is the first step taken in all troubleshooting
processes? - ANSWER -
Analyze the
complaint
If the complaint is 'too little heat' and the burner is short-
cycling the most likely
cause is.... - ANSWER -the thermostat is out of
adjustment
Excessive combustion noise is most likely caused by.... -
ANSWER -improper
burner
adjustment
When a complaint is "too much heat" and the burner is
continuously running the
most likely cause is.... - ANSWER -
faulty wiring
In a case of failure of a burner to start the most likely cause is....
- ANSWER -a
blown
fuse
, what is the most probable cause of a burner to not start? -
ANSWER -power
failure
when the complaint is 'too much heat' and the heat
element operates
continuously the most likely cause is.... - ANSWER -faulty
control wiring
if the complaint is 'too much heat' and the electrical wiring is
short-cycling the
most likely cause is... - ANSWER -the thermostat heat
anticipator is set too low
In case of an electrical heating system not starting, the most
likely cause is... -
ANSWER -a blown
fuse
A psychrometric chart is a graph representation of...
- ANSWER -
thermodynamic
properties
Heat flows in one direction usually from.... - ANSWER -a
position of higher
temperature to a position of lower
temperature
ACTUAL COMPLETE REAL EXAM QUESTIONS AND
CORRECT ANSWERS (VERIFIED ANSWERS) ALREADY
GRADED A+ | GUARANTEED SUCCESS!! NEWEST EXAM |
JUST RELEASED!!
When one of the three phases of a motor fails, how will the
motor react? - ANSWER -A winding will run hotter, the motor
will (generally) not start, the two phases will draw 1.5 (1 1/2)
times more current
When megohming a motor winding what is the rule of thumb to
find an acceptable range of resistance to ground? - ANSWER -
1000 ohms/volt
Which of the following may be the cause of improper air
distribution? -
ANSWER -High pressure drop thru ducts and fittings, dirty
filters, incorrect fan speeds
Friction losses of pressure in ducted systems occur..... -
ANSWER -in elbows,
along duct walls, with increase in
air speed
Which of the following may cause faulty fan operation? -
ANSWER -Loose belt
,drive, restricted air intake, improper fan
bearing lubrication
What is the first step taken in all troubleshooting
processes? - ANSWER -
Analyze the
complaint
If the complaint is 'too little heat' and the burner is short-
cycling the most likely
cause is.... - ANSWER -the thermostat is out of
adjustment
Excessive combustion noise is most likely caused by.... -
ANSWER -improper
burner
adjustment
When a complaint is "too much heat" and the burner is
continuously running the
most likely cause is.... - ANSWER -
faulty wiring
In a case of failure of a burner to start the most likely cause is....
- ANSWER -a
blown
fuse
, what is the most probable cause of a burner to not start? -
ANSWER -power
failure
when the complaint is 'too much heat' and the heat
element operates
continuously the most likely cause is.... - ANSWER -faulty
control wiring
if the complaint is 'too much heat' and the electrical wiring is
short-cycling the
most likely cause is... - ANSWER -the thermostat heat
anticipator is set too low
In case of an electrical heating system not starting, the most
likely cause is... -
ANSWER -a blown
fuse
A psychrometric chart is a graph representation of...
- ANSWER -
thermodynamic
properties
Heat flows in one direction usually from.... - ANSWER -a
position of higher
temperature to a position of lower
temperature
