How can the installation of a humidifier help to reduce heating costs?
What will be an ideal response?
Dry air causes the person to feel cold, due to water evaporation from the skin, and to set the thermostat a few degrees higher to become comfortable, thus consuming more heating energy.
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Tools and equipment must be kept at least _____.
a. 1' from the edge of a trench b. 2' from the edge of a trench c. 3' from the edge of a trench d. 4' from the edge of a trench
What were the disadvantages of barbwire?
What will be an ideal response?
What factors determine the friction coefficient?
A) Surface area, friction material B) Friction material, surface area C) Friction material, surface finish D) Surface area, surface thickness
To prevent one amplifier's bias voltage from affecting the operation of the second amplifier, a(n) ____________________ technique must be used.
Fill in the blank(s) with the appropriate word(s).