Which of the following describes a ground fault?
a. The connection between two or more portions of the equipment grounding conductor
b. An open connection between an electrical circuit or equipment and the earth
c. A conducting connection between any of the conductors of an electrical system
d. The unintentional, electrically conducting connection between an ungrounded conductor of an electrical circuit and the normally noncurrent-carrying conductors, metallic enclosures, metallic raceways, metallic equipment, or the earth
d. The unintentional, electrically conducting connection between an ungrounded conductor of an electrical circuit and the normally noncurrent-carrying conductors, metallic enclosures, metallic raceways, metallic equipment, or the earth
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The Jensen Electric Co. fire alarm system uses a combination of smoke detectors and ____.
A. cameras B. sensor microchips C. manual pull handles D. keys
If a = 7, b = 5, and c = 4, find the value of b(a + c)/(2a - c).
A. 4/5 B. 5 1/10 C. 5 5/11 D. 5 1/2
What schematic symbol is shown in the accompanying figure?
a. Normally Open Temperature Switch (Thermostat)
b. Normally Open Flow Switch
c. Normally Open Pressure Switch
d. Normally Open Limit Switch
If a wire repair, such as repairs made under the hood or under the vehicle is exposed to the elements, which type repair should be used?
A) Rosin-core solder and electrical tape B) Wire nuts and electrical tape C) Solder and adhesive-lined heat shrink or crimp and seal connectors D) Butt connectors