What is energy efficiency?
NATIONAL LEVEL ONLINE QUIZ COMPETITION ON ENERGY CONSERVATION

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mangayarkarasi college
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30 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Energy efficiency is the ratio of useful output of a service, product, or process to the energy input, aiming to minimize energy consumption.
Energy efficiency refers to the use of renewable energy sources only.
Energy efficiency is the measure of energy produced by a system.
Energy efficiency is the total amount of energy consumed by a process.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Name three energy-efficient appliances.
Energy Star-rated refrigerator, LED light bulb, high-efficiency washing machine
Standard incandescent bulb
Basic washing machine
Old-style refrigerator
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does LED lighting contribute to energy efficiency?
LED lights consume more energy than fluorescent lights.
LED lighting is more energy-efficient than traditional lighting options.
LED lighting has a shorter lifespan than traditional lighting options.
LED lighting is less efficient than incandescent bulbs.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the benefits of using renewable energy sources?
Higher greenhouse gas emissions
The benefits of using renewable energy sources include reduced emissions, lower pollution, energy independence, job creation, and economic growth.
Decreased job opportunities
Increased reliance on fossil fuels
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
List at least two types of renewable energy sources.
Solar energy, Wind energy
Natural gas,Nuclear energy
Coal energy,Natural gas
Nuclear energy,Coal energy
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does solar energy work?
Solar energy works by converting sunlight into electricity using photovoltaic cells.
Solar energy is produced by wind turbines.
Solar energy is generated by burning fossil fuels.
Solar energy is created through nuclear reactions.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of wind energy in reducing carbon emissions?
Wind energy increases carbon emissions by promoting fossil fuel extraction.
Wind energy has no impact on carbon emissions and is not a renewable source.
Wind energy plays a crucial role in reducing carbon emissions by providing a clean, renewable source of electricity that displaces fossil fuel use.
Wind energy is primarily used for heating, not electricity generation.
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