8/1/25, 7:35 PM COSC 325 Houston (Mechanical)
COSC 325 Houston (Mechanical) COMPLETE
QUESTIONS AND CORRECT DETAILED
ANSWERS
2
4
Terms in this set (107)
23
mechanical
1/9
, 8/1/25, 7:35 PM COSC 325 Houston (Mechanical)
how many Btu/H in a ton 12000
What is comfortable 50%
relative humidity?
the speed at which air moves from one point to
Air velocity
another
what is ideal air movement 40fpm
What is the most common sheet metal, measured in gauge (smaller number
duct material thicker material)
Why insulate duct work Condensation
What is the average CO2 800
level for good indoor air
quality?
Make up air Air supplied to a space to replace exhausted air
Any foul or unwanted air removed from a space by
exhaust air
mechanical means.
What is the normal 20 cubic feet per minute per person in the space
building space
requirement for fresh
outside air
American Society of Heating, Refrigerating and Air-
ASHRAE
Conditioning Engineers
5 requirements for proper temperature, humidity, circulation, filtration,
comfort ventilation
Dry Bulb Temperature the measurement of sensible heat
the amount of water vapor present in air expressed as
Relative Humidity (RH) a percentage of the amount needed for saturation at
the same temperature.
the temperature below which moisture in the air
Dew point(dp)
begins to condense
2/9
COSC 325 Houston (Mechanical) COMPLETE
QUESTIONS AND CORRECT DETAILED
ANSWERS
2
4
Terms in this set (107)
23
mechanical
1/9
, 8/1/25, 7:35 PM COSC 325 Houston (Mechanical)
how many Btu/H in a ton 12000
What is comfortable 50%
relative humidity?
the speed at which air moves from one point to
Air velocity
another
what is ideal air movement 40fpm
What is the most common sheet metal, measured in gauge (smaller number
duct material thicker material)
Why insulate duct work Condensation
What is the average CO2 800
level for good indoor air
quality?
Make up air Air supplied to a space to replace exhausted air
Any foul or unwanted air removed from a space by
exhaust air
mechanical means.
What is the normal 20 cubic feet per minute per person in the space
building space
requirement for fresh
outside air
American Society of Heating, Refrigerating and Air-
ASHRAE
Conditioning Engineers
5 requirements for proper temperature, humidity, circulation, filtration,
comfort ventilation
Dry Bulb Temperature the measurement of sensible heat
the amount of water vapor present in air expressed as
Relative Humidity (RH) a percentage of the amount needed for saturation at
the same temperature.
the temperature below which moisture in the air
Dew point(dp)
begins to condense
2/9
