Explain how a wet-bulb thermometer works.
What will be an ideal response?
A wet-bulb thermometer is a thermometer that has a wet wick wrapped around its bulb. As the thermometer is moved through the air, some of the water evaporates. During the evaporation process, the water absorbs heat. Some of this heat is absorbed from the bulb and the temperature drops. If the air is very humid, the water from the wick cannot evaporate so the wet-bulb temperature will not drop much. If the air is very dry (low humidity), the wet-bulb temperature will drop a great deal.
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Por lo general, las viguetas de madera se colocan a _______ OC con la corona hacia _____.
a. 16" (40.60 cm); arriba b. 16" (40.60 cm); abajo c. 24" (60.90 cm); arriba d. 24" (60.90 cm); abajo
In commercial operations, hatching eggs are placed in a setting room until 1 week before hatching, when they are moved to the hatching room.
Answer the following statement true (T) or false (F)
The first step in brake pad replacement is ________
A) Swing the caliper away from the anchor plate B) Remove some fluid from the master cylinder reservoir C) Raise the car D) Remove the pad retaining pins
When installing the outdoor unit of a split-system air-source heat pump, it is important to locate the unit:
A) Below the frost line to reduce defrost cycles. B) As close to the house as possible to help shelter the unit from inclement weather. C) Under an overhang for protection against the weather. D) Above the snow line of the area.