Electrical Safety: Grounding and Bonding

Electrical Safety: Grounding and Bonding

Assessment

Interactive Video

Physics

9th - 10th Grade

Hard

Created by

Patricia Brown

FREE Resource

This video tutorial explains the differences between grounding, earthing, and bonding in electrical systems. Grounding connects live parts to the Earth to manage fault currents, while earthing connects metallic parts to prevent electric shocks. Bonding ensures all metallic parts are at the same potential to eliminate electric hazards. The video clarifies these concepts with examples and highlights their importance in ensuring safety in electrical systems.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary difference between grounding and bonding?

Grounding is used in Europe, while bonding is used in the U.S.

Grounding connects live parts to the Earth, while bonding connects metallic parts together.

Grounding is for safety, while bonding is for efficiency.

Grounding is a type of bonding.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In which countries is the term 'grounding' primarily used?

UK and Europe

U.S. and Canada

India and China

Australia and New Zealand

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What color is typically used to denote a ground wire in electrical systems?

Green

Blue

Red

Black

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main purpose of earthing in electrical systems?

To balance the electrical load

To connect all metallic parts together

To provide a path for fault currents

To prevent electric shock by discharging fault currents to the ground

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which color is used to represent the earthing wire in electrical nomenclature?

Yellow

Red

Green

Black

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does bonding aim to achieve in an electrical work area?

To connect live parts to the Earth

To maintain all metallic parts at the same potential

To increase the resistance of the system

To provide a backup power source

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of an Earth mat or ground mat in bonding?

To connect live wires

To provide insulation

To increase voltage

To ensure equipotential between equipment

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