1|Pag e
BOMA HVAC ACTUAL EXAM| TEST
PREPARATION QUESTIONS WITH VERIFIED
SOLUTIONS| LATEST AND COMPLETE EDITION
ALREADY GRADED A+| BRAND NEW!!!
What happens when room temperature soda is poured into a glass of ice ? -
ANSWER :The ice melts because it is absorbing heat from the soda .
The compressor in a refrigeration system - ANSWER :pumps the refrigerant
throughout the system
What is the first step in troubleshooting procedures? - ANSWER :Analyze the
complaint
If the complaint is too little heat and the burner is short cycling the most likely
cause is - ANSWER :Thermostat out of adjustment
What causes excessive combustion noise ? - ANSWER :Improper burner
adjustment
When the complaint is too much heat and the burner is running continuously the
cause is - ANSWER :Faulty wiring
failure of a burner to start can be caused by - ANSWER :Blown fuse
What's the most probable cause of a burner to not start ? - ANSWER :Power
failure
,2|Pag e
Too much heat and the electrical wiring short cycling the cause is - ANSWER
:Thermostat heat anticipator set too low
Most likely cause of a heating system not to start - ANSWER :Blown fuse
A psychrometric chart is a graphic representation of - ANSWER :Thermodynamic
properties
Yea flows in one direction from - ANSWER :High temperature to low
temperature
Three main ways of heat transfer are - ANSWER :Convection conduction and
radiation
What is the best conductor of heat? - ANSWER :Metal
Heat will continue to flow between two bodies until they have become the same -
ANSWER :Temperature
T/F Enthalpy refers to the heat content of refrigerant - ANSWER :True
Psychrometric is the science of dealing with the relationship between - ANSWER
:Humidity and the atmosphere
Which of the following is not one of the four environmental qualities provided by
ac systems - ANSWER :Electrostatic suppression
,3|Pag e
Translated to Fahrenheit what is the value of absolute zero - ANSWER :-460
Fahrenheit
T/F mixing air on a mechanical bases causes a humid condition - ANSWER :True
Specific humidity may be defined as - ANSWER :Weight of water mixed with a
pound of dry air
What is wet bulb depression - ANSWER :difference between wet-bulb and dry-
bulb
The active element of a humidity meter used in a humidistat is - ANSWER :Horse
hair
T/F evaporative cooling is a variable heat process - ANSWER :False
How to find volume of air through a duct - ANSWER :Size of duct (axb) / 144 x
FPM
The element that makes up most volume of air is - ANSWER :Nitrogen
The pressure of a fluid varies directly with - ANSWER :It's height and density
Air flow through a duct has highest velocity near - ANSWER :The center of the
duct
Quantity of air through a fan is expressed in - ANSWER :CFM
, 4|Pag e
Effective temperature takes into consideration the affect of - ANSWER :Air
velocity and humidity
Velocity of air flowing through a duct is calculated in - ANSWER :Feet per min
A fluid is anything that - ANSWER :Flows
T/F matter in a liquid state retains its size and quantity but not it's shape -
ANSWER :True
T/F refrigeration Can be defined as the transfer of heat - ANSWER :True
To calculate the required cfm for cooling applications - ANSWER :Multiply the
total cooling loads x 400 cfm per ton
T/F 10% increase in fan speed will cause 33%increase in power - ANSWER :True
Can the performance of a fan at various speeds and air densities be predicted ? -
ANSWER :Yea through fan curve calculations
T/F closing off dampers downstream of the dam will decrease the horsepower -
ANSWER :True
Two types of fan classifications are - ANSWER :Centrifugal and axial
BOMA HVAC ACTUAL EXAM| TEST
PREPARATION QUESTIONS WITH VERIFIED
SOLUTIONS| LATEST AND COMPLETE EDITION
ALREADY GRADED A+| BRAND NEW!!!
What happens when room temperature soda is poured into a glass of ice ? -
ANSWER :The ice melts because it is absorbing heat from the soda .
The compressor in a refrigeration system - ANSWER :pumps the refrigerant
throughout the system
What is the first step in troubleshooting procedures? - ANSWER :Analyze the
complaint
If the complaint is too little heat and the burner is short cycling the most likely
cause is - ANSWER :Thermostat out of adjustment
What causes excessive combustion noise ? - ANSWER :Improper burner
adjustment
When the complaint is too much heat and the burner is running continuously the
cause is - ANSWER :Faulty wiring
failure of a burner to start can be caused by - ANSWER :Blown fuse
What's the most probable cause of a burner to not start ? - ANSWER :Power
failure
,2|Pag e
Too much heat and the electrical wiring short cycling the cause is - ANSWER
:Thermostat heat anticipator set too low
Most likely cause of a heating system not to start - ANSWER :Blown fuse
A psychrometric chart is a graphic representation of - ANSWER :Thermodynamic
properties
Yea flows in one direction from - ANSWER :High temperature to low
temperature
Three main ways of heat transfer are - ANSWER :Convection conduction and
radiation
What is the best conductor of heat? - ANSWER :Metal
Heat will continue to flow between two bodies until they have become the same -
ANSWER :Temperature
T/F Enthalpy refers to the heat content of refrigerant - ANSWER :True
Psychrometric is the science of dealing with the relationship between - ANSWER
:Humidity and the atmosphere
Which of the following is not one of the four environmental qualities provided by
ac systems - ANSWER :Electrostatic suppression
,3|Pag e
Translated to Fahrenheit what is the value of absolute zero - ANSWER :-460
Fahrenheit
T/F mixing air on a mechanical bases causes a humid condition - ANSWER :True
Specific humidity may be defined as - ANSWER :Weight of water mixed with a
pound of dry air
What is wet bulb depression - ANSWER :difference between wet-bulb and dry-
bulb
The active element of a humidity meter used in a humidistat is - ANSWER :Horse
hair
T/F evaporative cooling is a variable heat process - ANSWER :False
How to find volume of air through a duct - ANSWER :Size of duct (axb) / 144 x
FPM
The element that makes up most volume of air is - ANSWER :Nitrogen
The pressure of a fluid varies directly with - ANSWER :It's height and density
Air flow through a duct has highest velocity near - ANSWER :The center of the
duct
Quantity of air through a fan is expressed in - ANSWER :CFM
, 4|Pag e
Effective temperature takes into consideration the affect of - ANSWER :Air
velocity and humidity
Velocity of air flowing through a duct is calculated in - ANSWER :Feet per min
A fluid is anything that - ANSWER :Flows
T/F matter in a liquid state retains its size and quantity but not it's shape -
ANSWER :True
T/F refrigeration Can be defined as the transfer of heat - ANSWER :True
To calculate the required cfm for cooling applications - ANSWER :Multiply the
total cooling loads x 400 cfm per ton
T/F 10% increase in fan speed will cause 33%increase in power - ANSWER :True
Can the performance of a fan at various speeds and air densities be predicted ? -
ANSWER :Yea through fan curve calculations
T/F closing off dampers downstream of the dam will decrease the horsepower -
ANSWER :True
Two types of fan classifications are - ANSWER :Centrifugal and axial
