Testing and Commissioning Electrical System

Why is testing an electrical system important?

• To make sure everything is working correctly

• To make the wires look neat

• To make the house brighter

• To make the wires last longer

What is the purpose of commissioning in electrical systems?

• To install wires quickly

• To check if the system is working safely and properly

• To remove old wires

• To change the wiring design

Which tool is used to measure voltage, resistance, and current?

• Hammer

• Screwdriver

• Multi-tester

• Pliers

Why should a multi-tester be set to the highest range before testing an unknown voltage?

• To prevent damage to the tester

• To make the reading faster

• To increase voltage

• To make the circuit work better

What is the main function of an electrical circuit breaker?

• To allow more current flow

• To prevent overheating and short circuits

• To turn off the lights automatically

• To increase electricity in the system

If a circuit breaker keeps turning off, what could be the problem?

• The circuit is overloaded

• The light switch is off

• The wires are too long

• The breaker is too small

A student notices that a light bulb keeps burning out quickly. What could be the cause?

• The light bulb is not fixed properly

• The voltage is too high

• The switch is turned off

• The light bulb is too small

When testing a wire using a multi-tester, the reading is very low. What does this mean?

• The wire is new

• The wire is broken

• The wire is too long

• The wire is working properly

A school electrician needs to test if a switch is working. What tool should they use?

• Megger

• Multi-tester

• Screwdriver

• Hammer

Why should we use a weatherproof electrical box for outdoor connections?

• To protect wires from rain and moisture

• To make the system look better

• To make the installation easier

• To reduce electricity use