What is stratification? Is it more likely to occur at places with low ceilings or places with high ceilings? How does it cause thermal discomfort for a room’s occupants? How can stratification be prevented?
What will be an ideal response?
Stratification is the formation of vertical still air layers in a room at difference temperatures, with highest temperatures occurring near the ceiling. It is likely to occur at places with high ceilings. It causes discomfort by exposing the head and the feet to different temperatures. This effect can be prevented or minimized by using destratification fans (ceiling fans running in reverse).
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Most consumption of electricity and natural gas is used for:
A) Military operations. B) Commercial and industrial lighting. C) Residential lighting. D) Heating and cooling.
The correct way to check for a leak in a hydraulic line under pressure is to _____.
a. visually inspect the line b. run your hand along the line c. use a piece of wood or cardboard d. place your ear close to the line and listen for a hissing sound
Circulating water via condensation, ____ allow for long spans of time between maintenance and can
provide ornamental focal areas within an interior design.
a. plants in containers c. terraria b. irrigation systems d. orangeries
Why should a technician never touch the glass ampoule of any halogen bulb?
A) The glass will melt from the heat of your finger B) Oils from a finger can cause a shorter service life C) You can get a significant burn D) The glass will crack