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NHIE: Electrical System — Exam Questions and Answers (Latest Update 2025) $11.49   Add to cart

Exam (elaborations)

NHIE: Electrical System — Exam Questions and Answers (Latest Update 2025)

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  • Course
  • NHIE: Electrical System
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  • NHIE: Electrical System

NHIE: Electrical System — Exam Questions and Answers (Latest Update 2025)

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  • November 7, 2024
  • 26
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • NHIE: Electrical System
  • NHIE: Electrical System
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Allivia
NHIE: Electrical System — Exam
Questions and Answers (Latest Update
2025)
Service entrance conductors run from the service drop to the
service box or service panel. True of false? - Correct Answer
✅- True



The service size is determined by the amperage and the
voltage ratings of the service. - Correct Answer ✅- True



Is the service drop overhead or underground? - Correct
Answer ✅- Overhead



Are service laterals overhead or underground? - Correct
Answer ✅- Underground



The drip loop is typically part of the service drop. True or
False? - Correct Answer ✅- False



The wire size for the service drop must be the same as the
wire size for the service entrance conductors. True or False? -
Correct Answer ✅- False

,NHIE: Electrical System — Exam
Questions and Answers (Latest Update
2025)
How many wires would you typically find in a 240-volt service
drop? - Correct Answer ✅- 3



What would 4 wires mean? - Correct Answer ✅- 3-phase
electricity



What would 2 wires usually mean? - Correct Answer ✅-
120 volt service



List 7 common problems with service drops. - Correct
Answer ✅1. Overhead wires too low.

2. Damaged or frayed wires.

3. Trees or vines interfering with wires.

4. Wires too close to doors or windows.

5. Wires not well-secured to the house.

6. Poor connection between service drop and service
entrance.

7. Inadequate clearance from roofs.

, NHIE: Electrical System — Exam
Questions and Answers (Latest Update
2025)
List clearances above ground, swimming pools, and roofs. -
Correct Answer ✅Clearances above:

- Roadway 18 ft

- Driveway 12 ft.

- Walkway 10 ft.

- Flat roof 10 ft.

- Sloped roof (e.g., > 4:12) 18 in.

- Low slope roof (e.g., < 4:12) 3 ft.

- Swimming pool 22.5 ft



The service entrance conductors run from the _________ to the
___________. - Correct Answer ✅- Service drop to service
box



All service entrance conductors must be in conduit. True or
False? - Correct Answer ✅- False



All service entrance conductors must be attached above roof
level. True or False? - Correct Answer ✅- False

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