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comfort
psychrometrics
more psychrometrics
hodge podge
Review
100
The four comfort factors.
What is temperature, humidity, air movement, and air cleanliness
100
this is the study of air and its properties.
What is psychrometrics?
100
this is the instrument used to measure relative humidity?
What is a sling psychrometer?
100
these air the four main components of an air conditioning system?
What is the evaporator, condenser, compressor, and metering device
100
the type of material often used for the resistance wire in electric heating elements
What is nichrome
200
this describes a delicate balance of pleasant feeling in the body.
What is comfort
200
this consists of approximately 78% nitrogen, 21% oxygen and 1% other gases.
What is air?
200
these are the two measurements given using a sling psychrometer
What is wet bulb and dry bulb temperature?
200
the measure of heat content in Btu per pound of air.
What is enthalpy
200
common control voltage used on residential units
What is 24 volts
300
In the winter lower temperatures can be offset by this.
What is higher humidity
300
the actual amount of water vapor that is contained in an air sample, expressed in grains per pound.
What is absolute humidity?
300
the difference between wet bulb and dry bulb temperature
What is wet bulb depression?
300
instrument used to measure dry bulb temperature
What is a thermometer
300
the wire color used as call for cooling
What is yellow
400
this is normal body temperature
What is 98.6 degrees?
400
The relationship between the wight of water vapor in a pound of air compared with the weight of water vapor a pound of air could hold
What is relative humidity?
400
Chart used to plot the conditions of air
What is the psychrometric chart
400
these are three types of evaporator coils
What is an A coil, slant coil, and H coil
400
the wire color used as call for heat
What is white
500
the body gives off heat in these three ways.
What is conduction, convection, and radiation?
500
air that contains all the moisture it can hold is known to be this
What is saturated
500
this the point at which moisture begins to condense out of the air
What is the dew point
500
this is the positive displacement pump that pumps heat-laden vapor from the evaporator to the condenser
What is the compressor
500
this is used to activate the heating elements in stages
What is a sequencer