Electrical Systems Quiz

A device that is basically a double throw switch of generally 3-pole connection that will automatically transfer the power from the standby generator to the building circuitry during electrical power failure:

• Power Fail Monitor

• Automatic Transfer Switch

• Circuit Breaker

• Automatic Transform Switch

TW in electrical wire specification means:

• Moisture resistant, in wet and dry location

• High heat resistant

• Water and heat resistant

• Thermoplastic Insulation

What does "MC" stand for in wiring?

• Moisture Control

• Metal Clad

• Metallic Conductor

• Master Circuit

What is the minimum required size of a grounding electrode conductor for a residential electrical system?

• 2 AWG

• 4 AWG

• 6 AWG

• 8 AWG

The main purpose of a circuit breaker is to:

• Reduce voltage fluctuations

• Prevent electrical fires by interrupting excessive current

• Enhance power factor

• Increase electrical load capacity

Which fire suppression system is best suited for electrical fires?

• Water sprinkler system

• Carbon dioxide (CO2) system

• Wet chemical system

• Foam system

What is the standard voltage for residential electrical systems in the Philippines?

• 120V

• 220V

• 480V

• 600V

What type of conduit is commonly used for outdoor installations?

• Rigid Metal Conduit (RMC)

• Flexible Metal Conduit (FMC)

• Electrical Metallic Tubing (EMT)

• Non-Metallic Conduit (NMC)

Which color is typically used for grounding wires?

• Red

• Blue

• Green

• Yellow

What does a GFCI protect against?

• Overvoltage

• Overcurrent

• Ground faults

• Short circuits