How can a nontoxic, nonflammable refrigerant still be dangerous when released in a confined space?
A) The space temperature can quickly drop below freezing.
B) A chemical reaction with the air can create a flammable byproduct.
C) A chemical reaction with the air can create a toxic gas.
D) The refrigerant can replace the air, causing suffocation.
D
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Receptacles must be installed so that no point measured horizontally along the floor line in any wall space is more than ____ feet from a receptacle outlet.
a. 2 b. 4 c. 6 d. 12
A ring counter is a shift register that
A) shifts until all flip-flops are LOW. B) recirculates one HIGH bit continuously through each flip-flop. C) shifts until all flip-flops are HIGH. D) connects each flip-flop output to the shift register input.
When a substance in the liquid state occupies a container, it:
A) Applies pressure equally to the bottom and the sides of the container. B) Applies the greatest amount of pressure on the bottom of the container. C) Applies twice the pressure to the bottom of the container directly proportional to the sides and surface. D) Applies pressure to only the bottom of the container due to force of barometric pressure.
How does adding humidity to the air in a residence affect the thermostat setting?
What will be an ideal response?