BOMA-HVAC
The man whose work is considered the real beginning of the science of air-conditioning _____. - correct
answer ✔✔Willis Carrier
Psychrometry refers to the relationship between _____ and _____. - correct answer ✔✔Humidity; air
The amount of moisture in the air compared to how much it can hold is _____. - correct answer
✔✔Relative humidity
The human bodies well being depends upon the _____. - correct answer ✔✔Bodies metabolism
The device used to determine the moisture content of air is the _____ - correct answer
✔✔psychrometer
Of the fuels listed the one that is the most efficient is _____. - correct answer ✔✔Gas
The effective temperature takes into consideration the effect of _____ and _____. - correct answer
✔✔Humidity; temperature
Air conditioning is the control of the _____, _____, _____ and _____. - correct answer ✔✔Temperature,
humidity, purity and distribution of air.
The element that makes up the greatest percentage by volume of air is _____. - correct answer
✔✔Nitrogen
Steam gives off a great amount of heat because of its _____. - correct answer ✔✔Specific heat
The velocity of air moving thru a fan system is expressed in _____. - correct answer ✔✔Feet per minute
, What volume of air will move thru a duct 24x18 at velocity of 450 feet per minute? - correct answer
✔✔1350 cfm
The following types of fans are classified as centrifugal fans. - correct answer ✔✔Forward curved, radial
and backward curved
Select the statement that does not apply to backward inclined fans. - correct answer ✔✔Has an
overloading BHP horse power curve.
The quantity of air moving thru a fan system is expressed in _____. - correct answer ✔✔Cubic feet per
minute
The instrument used to measure air pressure in duct is the _____. - correct answer ✔✔Monometer
Air flow thru a duct has the highest _____. - correct answer ✔✔Velocity near the center of the duct.
Select the statement which does not apply to the fan laws. - correct answer ✔✔Static pressure in a duct
increases as the velocity decreases.
Variable air volume system feature is _____. - correct answer ✔✔Varies the volume of air with space
temperature conditions
Double duct systems are _____. - correct answer ✔✔?
The purpose of a primary control is to _____. - correct answer ✔✔Start or stop the system
A pressurestat responds to _____. - correct answer ✔✔System pressure
The oil safety switch is operated by _____. Oil pressure - correct answer ✔✔
A low limit control _____. - correct answer ✔✔?
The man whose work is considered the real beginning of the science of air-conditioning _____. - correct
answer ✔✔Willis Carrier
Psychrometry refers to the relationship between _____ and _____. - correct answer ✔✔Humidity; air
The amount of moisture in the air compared to how much it can hold is _____. - correct answer
✔✔Relative humidity
The human bodies well being depends upon the _____. - correct answer ✔✔Bodies metabolism
The device used to determine the moisture content of air is the _____ - correct answer
✔✔psychrometer
Of the fuels listed the one that is the most efficient is _____. - correct answer ✔✔Gas
The effective temperature takes into consideration the effect of _____ and _____. - correct answer
✔✔Humidity; temperature
Air conditioning is the control of the _____, _____, _____ and _____. - correct answer ✔✔Temperature,
humidity, purity and distribution of air.
The element that makes up the greatest percentage by volume of air is _____. - correct answer
✔✔Nitrogen
Steam gives off a great amount of heat because of its _____. - correct answer ✔✔Specific heat
The velocity of air moving thru a fan system is expressed in _____. - correct answer ✔✔Feet per minute
, What volume of air will move thru a duct 24x18 at velocity of 450 feet per minute? - correct answer
✔✔1350 cfm
The following types of fans are classified as centrifugal fans. - correct answer ✔✔Forward curved, radial
and backward curved
Select the statement that does not apply to backward inclined fans. - correct answer ✔✔Has an
overloading BHP horse power curve.
The quantity of air moving thru a fan system is expressed in _____. - correct answer ✔✔Cubic feet per
minute
The instrument used to measure air pressure in duct is the _____. - correct answer ✔✔Monometer
Air flow thru a duct has the highest _____. - correct answer ✔✔Velocity near the center of the duct.
Select the statement which does not apply to the fan laws. - correct answer ✔✔Static pressure in a duct
increases as the velocity decreases.
Variable air volume system feature is _____. - correct answer ✔✔Varies the volume of air with space
temperature conditions
Double duct systems are _____. - correct answer ✔✔?
The purpose of a primary control is to _____. - correct answer ✔✔Start or stop the system
A pressurestat responds to _____. - correct answer ✔✔System pressure
The oil safety switch is operated by _____. Oil pressure - correct answer ✔✔
A low limit control _____. - correct answer ✔✔?
