A likely cause of a more than 0.5 percent change in flue gas oxygen concentration is _____
a. newly installed insulation
b. an inoperative furnace blower
c. leaking refrigeration equipment
d. a cracked heat exchanger
d
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Type MC cable stands for ____.
a. metal clad b. minimum circuit c. minimum current d. maximum current
The type of adhesive that is applied with a dual-chamber applicator is _____.
a. contact cement b. epoxy c. mastic d. casein glue
In pneumatic control systems, the ____________________ is the device that senses the desired temperatures and relays them to the controller by supplying specific air pressures representing a specific temperature.
Fill in the blank(s) with the appropriate word(s).
The Golden Bull established that the right to elect an emperor of the Holy Roman Empire belonged to
a. seven German prince-electors. b. the king of Bohemia. c. the papacy. d. the people of Germany.