Electrical sockets Quiz

What is the minimum live conductor cross-sectional area for a Ring circuit using mineral insulated cables?

• 1.0 mm²

• 1.5 mm²

• 2.0 mm²

• 2.5 mm²

Answer explanation

The minimum live conductor cross-sectional area for a Ring circuit using mineral insulated cables is 1.5 mm², as specified in electrical standards to ensure safety and efficiency.

What is the maximum floor area for an A2 radial circuit?

• 50m²

• 75m²

• 100m²

• 25m²

Answer explanation

The maximum floor area for an A2 radial circuit is 75m², which is specified in electrical regulations. This allows for adequate load distribution and safety in installations.

What is the current rating for the CCU in an A3 radial circuit?

• 30A

• 20A

• 25A

• 32A

Answer explanation

In an A3 radial circuit, the current rating for the CCU is typically 20A. This rating ensures safe operation and compliance with electrical standards, making 20A the correct choice among the options provided.

What type of cable is used in an A3 radial circuit?

• 4mm² PVC cable

• 2.5mm² PVC cable

• 3mm² PVC cable

• 5mm² PVC cable

Answer explanation

An A3 radial circuit typically uses 2.5mm² PVC cable, which is suitable for lighting and socket circuits. The other options, like 4mm² and 5mm², are generally used for higher load applications.

What is the alternative cable type mentioned for A2 radial circuits?

• 1.5mm² mims cable

• 2.5mm² mims cable

• 3mm² mims cable

• 4mm² mims cable

Answer explanation

The alternative cable type for A2 radial circuits is the 2.5mm² mims cable, which is commonly used due to its suitable current-carrying capacity and flexibility for various applications.

What is the alternative cable type mentioned for A3 radial circuits?

• 1.5mm² mims cable

• 2.5mm² mims cable

• 3mm² mims cable

• 4mm² mims cable

Answer explanation

The alternative cable type for A3 radial circuits is the 1.5mm² mims cable, which is suitable for lower power applications, making it the correct choice among the options provided.

Which radial circuit uses a 2.5mm² PVC cable?

• A1 Radial

• A2 Radial

• A3 Radial

• A4 Radial

Answer explanation

The 2.5mm² PVC cable is typically used for lighting and power circuits. A3 Radial is the correct choice as it specifies the use of this cable size for radial circuits, making it suitable for general power distribution.

What is the typical use of a 2.5mm² PVC cable in electrical installations?

• Lighting circuits

• High voltage transmission

• Ring final circuits

• Grounding

Answer explanation

A 2.5mm² PVC cable is typically used in ring final circuits, which are common in residential wiring for power distribution. It is not suitable for high voltage transmission or grounding.

How many sockets are shown in diagram

• Three

• Two

• Four

• Five

Answer explanation

The diagram clearly shows three sockets. By counting each socket depicted, we confirm that the correct answer is 'Three', as it matches the number of sockets visible in the illustration.

What is the primary function of a socket circuit?

• To distribute electrical power

• To store electrical energy

• To convert AC to DC

• To measure electrical resistance

Answer explanation

The primary function of a socket circuit is to distribute electrical power to devices. It provides a connection point for electrical appliances, allowing them to receive the necessary power to operate.