The amount of absorption or evaporation of moisture that occurs by hygrometric detector can be determined by __________.
A. measuring its weight
B. measuring its length
C. both a and b
Answer: C
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Shelters in pastures to allow horses to get out of the sun, wind, rain, or other types of weather are common.
Answer the following statement true (T) or false (F)
In order for combustion to occur, there must be _____.
a. fuel, CO2, and ignition b. radiation, conduction, and convection c. fuel, oxygen, and aldehydes d. fuel, ignition, and oxygen
The tool used to prevent separation (screw jacking) when two layers of steel are screwed together is the _____.
a. channel clip b. framing vise c. locking C-clamp d. stud crimper
A dc series motor drives a fan-type load. At rated current, the motor speed is 600 rpm. If a resistance equal to 0.25 of the field resistance shunts the field winding, what is the approximate motor speed?
What will be an ideal response?