303 #4 - Protective Conductors & Earthing Quiz

303 #4 - Protective Conductors & Earthing Quiz

Vocational training

10 Qs

quiz-placeholder

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303 #4 - Protective Conductors & Earthing Quiz

303 #4 - Protective Conductors & Earthing Quiz

Assessment

Quiz

Construction

Vocational training

Hard

Created by

Oliver Hall

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does CPC stand for in electrical installations?

Circuit Protective Conduit

Central Power Control

Circuit Protective Conductor

Consumer Protective Contact

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of a main protective bonding conductor?

To operate switches

To maintain voltage stability

To equalise potential between metal parts

To reduce energy use

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Supplementary bonding is typically required in:

Bedrooms

Bathrooms

Offices

Roof spaces

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does Zs represent?

Source voltage

System resistance

Earth fault loop impedance

Safety zone

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What units is Zs measured in?

Volts

Ohms

Amps

Watts

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the maximum disconnection time for a 230V TN system on a final circuit ≤32A?

5 seconds

1 second

2 seconds

0.4 seconds

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which regulation chapter of BS7671 deals with disconnection times?

Chapter 42

Chapter 41

Chapter 52

Appendix 2

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