What happens first when there is a call-for-heat signal to a furnace equipped with a motor-driven vent damper
a. The burners light to warm a bi-metal element.
b. A switch in the damper closes to start the burner.
c. A motor opens the vent damper.
d. The burners light to start the motor.
c. A motor opens the vent damper.
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Be conservative when estimating sand, as storage and disposal are costly.
Answer the following statement true (T) or false (F)
A record of important tasks that need to be accomplished is called a ________.
A) Timeline B) To-do-list C) Waste of time D) All of the above
Fusion welding is joining parts by ____________________ them together
Fill in the blank(s) with the appropriate word(s).
Hopscotching is the technique that requires you to start at a point with correct voltage and then move one lead at a time until:
A) Voltage is lost. B) You reach the nonfunctioning unit. C) The component begins functioning again. D) Line voltage doubles.