DU0-001 · Question #148
Regarding power cabling, what is the minimum number of wires in a factory configured power whip?
The correct answer is C. 3 wires -- one hot, one neutral, and one ground. A factory configured power whip requires at minimum 3 wires because a complete, safe electrical circuit needs a path to deliver current (hot), a path to return current (neutral), and a safety ground to protect against faults. Option A is wrong because omitting the neutral means…
Question
Options
- A2 wires -- one hot and one ground
- B5 wires -- two hot, two neutral, and one ground
- C3 wires -- one hot, one neutral, and one ground
- D4 wires -- two hot, one neutral, and one ground
How the community answered
(43 responses)- A2% (1)
- B16% (7)
- C74% (32)
- D7% (3)
Explanation
A factory configured power whip requires at minimum 3 wires because a complete, safe electrical circuit needs a path to deliver current (hot), a path to return current (neutral), and a safety ground to protect against faults. Option A is wrong because omitting the neutral means there is no return path for current under normal load, making the circuit non-functional. Option D describes a 240V single-phase configuration with two hots sharing one neutral, which is a specific higher-voltage arrangement, not the minimum baseline. Option B describes an even more elaborate multi-wire configuration that goes well beyond the minimum needed.
Memory tip: Picture a standard three-prong wall plug -- hot, neutral, ground. That three-wire arrangement is the simplest safe power connection, and a power whip is built on that same minimum foundation.
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