ELECTRICAL ENERGY

What energy transformation takes place in a generator?

• Chemical to mechanical

• Electrical to mechanical

• Heat to mechanical

• Mechanical to electrical

In power stations generating electricity, how is power measured?

• joule

• kilojoule

• kilowatt

• megawatt

In which of the following units is electrical consumption measured by electric companies for our household consumption in our homes?

• Kilowatt

• Kilowatt-hour

• Megawatt

• Volt

What type of power plant is Bataan Power Plant?

• Coal power

• Geothermal power

• hydropower plant

• nuclear power

What is the agency that is in charge of the electrical energy distribution in Pangasinan?

• MERALCO

• PANELCO

• SAN rOQUE

• NONE OF THESE

An increase of kWh is shown in an electric meter after a flatiron is used. How many hours was it used if it carried 5A from a 220V line?

• 1

• 4

• 40

• 44

How does an energy consumption of an electrical appliance determined?

• Through the appliance’s power rating and the number of hours it is used

• Through the number of hours the appliance is used in a day

• Through the appliance’s voltage

• All of these

Which of the following is not a way of conserving energy to reduce monthly electric bill?

• Use an electrical appliance with a low power wattage

• Replace an incandescent bulb with compact fluorescent lamps

• Do not unplug electrical appliances even not in use.

• None of these

There is a need to conserve energy consumption at home, which of the following is a way?

• Use surge protectors when necessary

• Switch off appliances when not in use.

• Unplug electrical appliances when not in use for a long time

• All of these

Which of the following statements is not correct?

• Electricity produces magnetism

• Electricity begins at the transmission lines over

• Geothermal energy is said to be a proven indigenous energy source

• Our country has almost all types of power plants except nuclear powerplant