What is specific humidity?
A) The weight of water in each pound of dry air, measured in grains
B) The humidity level required for a particular application
C) The relative humidity for any particular air sample
D) The amount of water in the air compared to the amount of water the air could hold
A
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Identify the three factors that affect demand for urban travel.
What will be an ideal response?
If you wish to determine the amount of voltage on an energized device, you should use:
A) An ohmmeter. B) A voltmeter. C) An ammeter. D) A non-contact voltage detector.
Technician A says a corrosion hot spot can be the result of not coating pry pick marks on the back side after repairing a damaged panel. Technician B says corrosion hot spots only occur when heat is used for repairing damage. Who is correct?
A. Technician A only B. Technician B only C. Both Technicians A and B D. Neither Technician A nor B
In an optoisolator, a ____ is used to trigger a phototransistor.
a. light-emitting diode b. transistor c. rectifier d. rheostat