If an acetylene cylinder is tipped over, stand the cylinder upright and wait at least _____ minutes before using it.
a. 10
b. 15
c. 30
d. 45
c. 30
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In a mechanical governor, the speed of the governor gear creates a(n) ____ force, which causes the flyweights to move outward.
a. centrifugal b. opposing c. frictional d. gravitational
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Wet-bulb temperature is generally (higher ________ / lower ________) than dry-bulb temperature.
What will be an ideal response?
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True or false? The more varied the diet of an animal is, the more likely the animal is to survive as the environment
changes over time.
What will be an ideal response?
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What types of humidifiers work best with heat pump systems?
A) Plate humidifiers B) Water spray Misters C) Wetted element D) Steam humidifiers
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