Comfort
Typically, when the body is at rest, surroundings of ______ Degrees F and 50% humidity & slight air movement is comfortable.
What is 75 degrees?
The moisture content in air (humidity) is measured by weight and expressed in pounds or _____________.
What are Grains?
The density of the air is __________.
What is the weight of the air per cubic foot.
The wet-bulb depression is ______________.
What is the difference of the dry-bulb and the wet-bulb temperatures?
True or False: Introduction of forced ventilation in the winter heating season helps to raise the humidity level.
What is False?
The average core body temperature _______ Degrees F.
What is 98.6?
When the wet-bulb and dry-bulb temperatures are the same, the relative humidity of the air is _________%.
What is 100%?
Air consists of 78% ___________, 21% oxygen, and 1% other gasses.
What is nitrogen?
The reading from the wet-bulb thermometer ____________.
What is takes into account the moisture content of the air?
The dew-point temperature is the ___________.
What is temperature at which moisture begins to condense out of the air?
When fresh air is introduced through the air handling system, the process is called fresh air intake, or __________.
The closer the wet-bulb and dry-bulb temperatures are to each other, the __________ the relative humidity.
What is higher?
Of the heat produced in the human body, which is by perspiration?
What is Evaporation?
The dry-bulb temperature is __________.
What is the sensible heat level of the air?
Under what conditions can the wet-bulb temperature be higher than the dry-bulb temperature?
What is it can NEVER be higher?
The ___________ of the air is the measure of heat content in BTU per pound of air.
What is Enthalpy?
Water, in the form of low-pressure vapor, is suspended in the air and is called ___________.
What is humidity?
The generalized comfort chart can be used as a basis to________?
What is to determine combinations of temperature and humidity to produce comfort in both summer and winter?
What is the relative humidity if the dry-bulb temperature is 100 degrees F and the wet-bulb is 65 degrees F?
What is 13%?
A small amount of air is induced from the outside into the conditioner to keep the air from __________.
What is becoming oxygen starved and stagnant?
Comfort can be described as the gentle balance between _________, _________, _________, & _________.
What is temperature, humidity, air movement, and air cleanliness?
If the dry-bulb temperature is 76 degrees, and the wet-bulb temperature is 68 degrees, the wet-bulb depression is ____________.
What is 8?
The density of water is _______.
What is the dew-point temperature if the wet-bulb temperature is 65F and the dry-bulb is 100F?
What is 40f?
How does air movement improve comfort?
What is air movement increases the latent heat removal from the body by increasing the evaporation rate of moisture off the skin. It helps reduce the negative effects of high relative humidity.