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What follows is a plain HTML version of the Quiz.
All the question's and answer's in this quiz are found in Tom Henry's book,
"Electrical Designing Workbook".
1. Conductors in parallel are required to be derated in ampacity when Note 8 applies.
2. It is better to design for parallel conductors rather than one large conductor.
3. When a conductor is chosen for the circuit, the designer or installer must know the termination ratings for the
.
- [ ] entire circuit
- [ ] switch
- [ ] receptacle
- [ ] breaker
4. A #4/0 THHN connected to 75 C equipment in an ambient of 105 F would have an ampacity of amps.
- [ ] 236.6
- [ ] 260
- [ ] 226.2
- [ ] 230
5. What size breaker is required for a 525 amp continuous load?
- [ ] 800
- [ ] 700
- [ ] 1000
- [ ] 600
6. The formula for Power Loss is .
- [ ] R/I
- [ ] VD x W
- [ ] E x I
- [ ] VD x I
7. At least one shall be installed for the laundry in a dwelling.
- [ ] duplex receptacle
- [ ] 240/120v receptacle
- [ ] single receptacle
- [ ] 30 amp receptacle
8. What is the minimum size THHN conductors for a 125 amp continuous load? 75 C equipment.
- [ ] #2/0
- [ ] #1/0
- [ ] #3/0
- [ ] #1
9. A pump has a 15-minute rated motor and a nameplate current rating of 22 amps. The required ampacity of the conductors to this motor would be amps.
- [ ] 27.5
- [ ] 19.8
- [ ] 22
- [ ] 18.7
10. A continuous load is a load that continues for hours or more.
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