Electrical Systems Quiz

What is the main purpose of initial verification in electrical systems?

• To ensure the system is aesthetically pleasing

• To verify the system is cost-effective

• To ensure the system is safe, suitable, and compliant

• To check the system's energy efficiency

Which unit covers the principles of inspection and testing in the 8202 qualification?

• Unit 301

• Unit 302

• Unit 304

• Unit 305

What do the Electricity at Work Regulations (EWR) primarily cover?

• Regulations for electrical installations only

• Regulations for all electrical activities

• Regulations for electrical equipment sales

• Regulations for electrical waste disposal

What term does BS 7671 use instead of 'competent'?

• Skilled

• Qualified

• Duty holder

• Expert

According to the EWR, who is responsible for the safety of the electrical installation?

• Electrician

• Homeowner

• Duty holder

• Inspector

What must be done before any inspection or testing of an electrical installation?

• Notify the homeowner

• Isolate the installation from the supply

• Check the lighting

• Secure all tools

What is the risk if an electrical installation is not isolated before testing?

• Equipment damage

• High risk of electric shock

• Increased energy consumption

• System malfunction

What is the first step in the full safe isolation procedure?

• Isolate

• Obtain permission to isolate

• Lock off

• Post signage

Which test is used for single-phase supplies during the isolation procedure?

• 5-point test

• 10-point test

• 3-point test

• 7-point test

What should be done after turning off the device during isolation?

• Post signage

• Re-check approved voltage indicator

• Lock off

• Obtain permission to isolate