The house electrical service should be checked before installing a unit in an older house because the electrical service in many older houses:
A) Will not supply 240 V to major loads.
B) Uses a different style of circuit connector that is not compatible with electric furnaces.
C) Operates on DC current, and electric furnaces require AC current.
D) Will not supply the current requirements of an electric furnace.
D
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The most common electrical service for small commercial or other small loads is _____.
a. 120/240V single-phase, three-wire b. 120/240V three-phase, four-wire c. 120/208V three-phase, four-wire d. 277/480V three-phase, four-wire
Before the airbag can inflate, the squib circuit must have a ground. The ground is provided through the actuation of which of these?
A) Forward discriminating sensor B) Passenger discriminating sensor C) Either A or B D) Seat belt switch
When frequency decreases, capacitive reactance _____
a. increases b. decreases c. stays the same d. may increase or decrease
When the voltage on the emitter reaches about +7.7 volts, the UJT turns on.
Answer the following statement true (T) or false (F)