What air property is measured in grains?

A) The weight of air.
B) Wet-bulb temperatures.
C) Grains are used to measure the amount of water in the air.
D) Relative humidity.


C

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If your car engine has an efficiency of 25%, and if gasoline costs $3.00 per gallon, how much of your money (per gallon) goes toward heating the atmosphere?

a. $2.00 c. $2.75 b. $2.25 d. $2.95

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A(n) ____________________ confines concrete to a desired shape until it hardens

Fill in the blank(s) with the appropriate word(s).

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Which act or organization regulates air conditioning refrigerant?

A) Code of Federal Regulations B) WHMIS C) Clean Air Act (CAA) D) MSDS

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The sensor that measures the temperature of the air being drawn into the engine is called which of these?

A) IAT B) NTC thermistor C) PTC thermistor D) Both A and B

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