Energy Efficiency and Electrical Safety Quiz

Which of the following is an example of energy conservation?

• Replacing incandescent bulbs with LED

• Turning off lights when not in use

• Using a smart thermostat

• Installing solar panels

What is the main goal of energy efficiency?

• To reduce the cost of energy sources

• To increase energy consumption

• To perform the same task with less energy

• To use only renewable energy sources

A programmable thermostat helps improve energy efficiency by:

• Maintaining the same temperature 24/7

• Turning off HVAC systems when no one is home

• Heating rooms faster

• Increasing humidity

Which building material enhances thermal insulation and contributes to energy efficiency?

• Concrete

• Steel

• Glass wool

• Aluminium

Installing motion sensors in a facility is mainly aimed at:

• Enhancing building aesthetics

• Improving safety

• Reducing lighting energy use

• Increasing brightness

What is the first step before working on any electrical system?

• Wear rubber gloves

• Notify the supervisor

• Turn off the power supply

• Check the fuse

Which of the following is NOT a typical electrical hazard?

• Overloaded circuits

• Exposed wires

• Labelled switchboards

• Faulty equipment

Ground-fault circuit interrupters (GFCIs) are used to:

• Increase voltage

• Prevent overloads

• Protect against electric shock

• Store electrical charge

What colour coding is typically used for earth (ground) wire?

• Red

• Black

• Yellow-green

• Blue

What is the purpose of electrical lockout/tagout procedures?

• To record equipment history

• To prevent unauthorised energising during maintenance

• To indicate working hours

• To reset circuit breakers