If a modern home is built too tightly, the air change rate per hour is reduced. What should be done to increase ventilation to safe levels?

A) Use a mechanical ventilation system to bring in fresh air.
B) Open the ground floor windows.
C) Reduce the insulation in the home.
D) Increase the blower fan speed.


A

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A) Micrometer B) Dial indicator C) Vernier caliper D) Dial bore gauge

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Examples of halogenated refrigerants include:

A) CFCs, HCFCs, and HFCs. B) All refrigerants are halogenated. C) CFCs and HCFCs only. D) CFCs only.

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

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