Renewable Energy Integration in Industry — MCQs – EE

1. The main goal of renewable energy integration in industry is to:
(A) Reduce dependence on fossil fuels and lower emissions
(B) Increase grid instability
(C) Replace all electrical systems with mechanical ones
(D) Eliminate energy storage systems

2. The most common renewable energy sources used in industries are:
(A) Solar, wind, biomass, and small hydro
(B) Coal and diesel
(C) Nuclear and geothermal only
(D) Gasoline and kerosene

3. Integrating renewable energy in industrial systems helps in:
(A) Reducing energy cost and improving sustainability
(B) Increasing carbon footprint
(C) Reducing power quality
(D) Increasing grid losses

4. The major challenge in renewable energy integration is:
(A) Intermittency and variability of generation
(B) Low installation cost
(C) Constant power output
(D) Minimal maintenance requirement

5. Solar photovoltaic (PV) systems are commonly integrated in industries for:
(A) On-site electricity generation
(B) Reactive power compensation
(C) Cooling water systems
(D) Lighting only

6. Net metering allows industries to:
(A) Export excess renewable energy to the grid
(B) Import only fossil-fuel power
(C) Disconnect from the grid
(D) Pay fixed charges for renewables

7. Hybrid energy systems combine:
(A) Renewable and conventional energy sources
(B) Mechanical and thermal systems
(C) AC and DC circuits only
(D) High voltage and low voltage networks

8. A microgrid in an industrial setup is designed to:
(A) Operate independently or in coordination with the main grid
(B) Depend fully on fossil fuel
(C) Supply only residential areas
(D) Increase power outages

9. The integration of renewable energy improves:
(A) Energy security and reliability
(B) Energy theft and losses
(C) Fuel consumption
(D) Greenhouse gas emissions

10. Biomass energy in industries is mainly used for:
(A) Steam and process heating applications
(B) Power factor correction
(C) Voltage regulation
(D) Lighting systems

11. The power electronics interface in renewable energy systems is required for:
(A) Converting and controlling energy flow between sources and loads
(B) Cooling renewable equipment
(C) Improving insulation
(D) Storing fuel

12. Industrial wind turbines are mainly suitable for:
(A) Locations with consistent wind speeds
(B) Indoor applications
(C) Heavy vehicle operations
(D) Underground installations

13. Energy storage systems are integrated with renewables to:
(A) Balance supply and demand variations
(B) Increase system losses
(C) Reduce efficiency
(D) Eliminate power generation

14. The best renewable energy source for daytime industrial loads is:
(A) Solar PV system
(B) Wind turbine
(C) Biomass gasifier
(D) Hydroelectric plant

15. Integrating renewables in industries helps achieve:
(A) Energy efficiency and sustainability targets
(B) Higher transmission losses
(C) More reliance on fossil fuels
(D) Increased pollution

16. Demand-side management plays an important role in renewable integration by:
(A) Adjusting load patterns to match renewable generation
(B) Increasing energy wastage
(C) Ignoring peak loads
(D) Running systems continuously

17. Power quality issues in renewable integration are mainly due to:
(A) Voltage fluctuations and harmonics from inverters
(B) Constant DC supply
(C) High mechanical loads
(D) Stable grid voltage

18. Energy management systems (EMS) help industries by:
(A) Monitoring and optimizing renewable energy usage
(B) Reducing automation
(C) Disconnecting solar systems
(D) Wasting stored energy

19. Grid-tied solar PV systems in industries:
(A) Operate with the grid and export excess power
(B) Work without any grid connection
(C) Require no inverter
(D) Cannot use net metering

20. One environmental benefit of renewable energy integration is:
(A) Reduction in greenhouse gas emissions
(B) Increase in waste generation
(C) Increase in fossil fuel usage
(D) Decrease in air quality

21. Industrial waste heat recovery systems can be integrated with:
(A) Solar thermal systems for cogeneration
(B) Diesel engines only
(C) Transmission networks
(D) Distribution transformers

22. Smart grids support renewable integration by:
(A) Enabling two-way communication and adaptive control
(B) Reducing automation
(C) Disconnecting renewable sources
(D) Eliminating monitoring systems

23. The main advantage of decentralized renewable energy integration is:
(A) Reduced transmission and distribution losses
(B) Increased grid dependency
(C) Lower voltage levels
(D) More complex control

24. Industrial hybrid systems often include:
(A) Solar PV + Diesel Generator + Battery Storage
(B) Only diesel generators
(C) Transformers and resistors only
(D) Transmission lines only

25. Net Zero Energy Industry (NZEI) refers to:
(A) Industries generating as much energy as they consume annually
(B) Industries operating without electricity
(C) Full dependency on fossil fuels
(D) Zero production efficiency

26. SCADA systems in renewable-integrated industries are used for:
(A) Supervisory monitoring and control of energy systems
(B) Manual switching only
(C) Data storage alone
(D) Generator cooling

27. Integrating renewable energy helps industries in achieving:
(A) ISO 50001 energy management compliance
(B) Increased tariff rates
(C) Reduced productivity
(D) Lower efficiency

28. Micro-hydropower is suitable for industrial applications where:
(A) There is a consistent water flow and head availability
(B) No water resources exist
(C) Energy demand is constant throughout the day
(D) Only wind energy is available

29. The economic benefit of renewable energy integration is:
(A) Reduced operational and energy costs over time
(B) Higher initial and recurring energy expenses
(C) Constant reliance on grid power
(D) Increased energy wastage

30. The successful integration of renewable energy in industry requires:
(A) Proper planning, storage, and control strategies
(B) Ignoring load variations
(C) Continuous fossil fuel backup
(D) Manual switching only