Electrical Bonding Quiz

What type of bonding is used to ensure all metal parts are at the same electrical potential?

• Cross bonding

• Equipotential bonding

• Temporary continuity bonding

• Supplemental bonding

Answer explanation

Equipotential bonding is used to ensure all metal parts are at the same electrical potential.

Which type of bonding is used for additional safety to connect accessible conductive parts?

• Equipotential bonding

• Cross bonding

• Temporary continuity bonding

• Supplemental bonding

Answer explanation

Supplemental bonding is used for additional safety to connect accessible conductive parts.

What is the purpose of temporary continuity bonding?

• To permanently connect metal parts

• To ensure safety during electrical installations

• To equalize potential under normal conditions

• To enhance the appearance of electrical setups

Answer explanation

To ensure safety during electrical installations

What is the purpose of equipotential bonding in a building's electrical system?

• To increase electrical resistance

• To provide equal potential between metal parts

• To generate electrical power

• To decorate the building

Answer explanation

To provide equal potential between metal parts

What should be joined to the earth cable in a building for safety?

• Only electrical wires

• All metal parts within the building

• Wooden parts

• Plastic components

Answer explanation

All metal parts within the building should be joined to the earth cable for safety, not just electrical wires.

What happens if a fault occurs in the building's electrical system with proper equipotential bonding?

• It increases the electrical bill

• It has no effect

• The electrical current has a direct route through the wiring, preventing shock

• It disrupts the internet connection

Answer explanation

If a fault occurs in the building's electrical system with proper equipotential bonding, the electrical current has a direct route through the wiring, preventing shock.

What is the size of the earth cable typically used in equipotential bonding?

• 5mm²

• 10mm²

• 20mm²

• 1mm²

Answer explanation

The size of the earth cable typically used in equipotential bonding is 10mm², as it provides sufficient conductivity for safety measures.

What is the purpose of equipotential bonding in electrical tasks as shown in the diagram?

• To increase electrical resistance

• To connect all main metal work and utilities from earth bar in 10mm² cable

• To decrease the efficiency of electrical appliances

• To enhance the voltage supply to consumer units

Answer explanation

To connect all main metal work and utilities from earth bar in 10mm² cable

What is the purpose of supplementary bonding in electrical tasks?

• To increase electrical resistance

• To maintain earth continuity

• To enhance electrical power

• To reduce cable size

Answer explanation

The purpose of supplementary bonding in electrical tasks is to maintain earth continuity.

What should be used for supplementary bonding according to the text?

• 10mm² copper wire

• 6mm² earth cable

• Plastic clips

• Wireless devices

Answer explanation

According to the text, 6mm² earth cable should be used for supplementary bonding.