Renewable Energy Systems MCQs (Part-9)

Which type of energy source produces no harmful emissions during its operation?

A Coal
B Diesel
C Wind
D Natural Gas

What is the primary function of a charge controller in a solar energy system?

A To store energy in batteries
B To manage the flow of electricity into batteries
C To convert DC to AC electricity
D To monitor sunlight intensity

What is the main source of energy for wave energy systems?

A Ocean currents
B Kinetic energy from ocean waves
C Gravitational pull of the moon
D Wind energy

Which type of renewable energy system focuses sunlight using mirrors to generate heat?

A Solar thermal systems
B Photovoltaic systems
C Wind turbines
D Biomass systems

What unit is commonly used to measure the amount of electricity consumed?

A Volt
B Ampere
C Watt
D Kilowatt-hour

How does a feed-in tariff policy promote renewable energy adoption?

A By offering payments for electricity generated from renewable sources
B By lowering the installation cost of renewable systems
C By increasing the subsidies for fossil fuels
D By eliminating grid integration costs

What does an off-grid renewable energy system mean?

A A system connected to the main power grid
B A system that operates independently from the power grid
C A system without energy storage capability
D A system relying on fossil fuels

Which renewable energy source is best suited for generating electricity in mountainous regions?

A Wind energy
B Hydropower
C Biomass energy
D Solar energy

Why are hybrid renewable energy systems advantageous?

A They rely on a single energy source
B They require no maintenance
C They combine multiple energy sources for greater reliability
D They eliminate the need for batteries

Which component of a wind turbine converts mechanical energy into electrical energy?

A Rotor blades
B Generator
C Tower
D Nacelle

Why is energy forecasting important in renewable energy systems?

A To predict future energy storage needs
B To estimate renewable energy production based on weather data
C To measure the efficiency of energy systems
D To calculate energy losses

How does renewable energy benefit the environment?

A By reducing the cost of energy storage
B By lowering greenhouse gas emissions
C By increasing reliance on fossil fuels
D By eliminating energy demand

Which energy source is used in anaerobic digestion to produce biogas?

A Solar energy
B Biomass
C Geothermal heat
D Wind energy

What role does an inverter play in renewable energy systems?

A To convert direct current (DC) to alternating current (AC)
B To store electricity
C To reduce energy loss
D To increase energy production

What is the primary benefit of distributed generation?

A Reduces transmission losses by producing energy locally
B Relies on centralized power plants
C Uses only non-renewable energy sources
D Requires no infrastructure investment

What is the key feature of tidal energy systems?

A They rely on sunlight
B They depend on the gravitational pull of the moon
C They use underground heat
D They require large amounts of biomass

What material is most commonly used in photovoltaic cells?

A Silicon
B Aluminum
C Copper
D Carbon

What is the purpose of a smart grid?

A To increase fossil fuel usage
B To integrate and manage renewable energy sources efficiently
C To replace all renewable energy systems
D To store energy for long periods

What is the primary source of geothermal energy?

A Solar radiation
B Heat from the Earth’s interior
C Ocean waves
D Wind currents

How does energy efficiency contribute to sustainability?

A By reducing energy waste and optimizing resource use
B By generating more energy from fossil fuels
C By increasing the cost of renewable energy systems
D By requiring less storage capacity