Thermal Power Plant Question & Answers June 12, 2023 By Wat Electrical This article lists 50 Thermal Power Plant MCQs for engineering students. All the Thermal Power Plant Questions & Answers below include a hint and a link to the relevant topic wherever possible. This is helpful for users who are preparing for their exams, interviews, or professionals who would like to brush up on the fundamentals of the Thermal Power Plant. A thermal power plant is also known as a coal-fired power plant or steam power plant. It is one of the most common types of power plants used globally. The thermal power plant operates fuel combustion, electricity generation, cooling system, and so on. The process involves the combustion of fossil fuels, such as coal, oil, or natural gas, to produce steam. The steam then drives a turbine connected to a generator, which produces electricity. Thermal power plants have been widely used for electricity generation due to their reliability and ability to produce large amounts of power. However, they also have environmental concerns, as the combustion of fossil fuels releases greenhouse gases and other pollutants. In recent years, there has been a growing shift towards cleaner and more sustainable energy sources, such as renewable energy, to mitigate these environmental impacts. 1). Which of the following is not a primary fuel used in a thermal power plant? Coal Natural gas Nuclear fuel Solar energy Hint 2). What is the main purpose of a cooling tower in a thermal power plant? To cool down the water used for steam generation To increase the temperature of the steam To filter impurities from the steam To generate electricity directly Hint 3). Which of the following is the most commonly used fuel in thermal power plants? Natural gas Oil Coal Uranium Hint 4). What is the purpose of a superheater in a thermal power plant? To convert water into steam To increase the pressure of the steam To remove impurities from the steam To increase the temperature of the steam Hint 5). Which of the following is an environmental concern associated with thermal power plants? Noise pollution Light pollution Air pollution Soil erosion Hint 6). Which component of a thermal power plant converts heat energy into mechanical energy? Boiler Turbine Condenser Generator Hint 7). What is the role of a condenser in a thermal power plant? To generate electricity To increase the temperature of the steam To convert mechanical energy into electrical energy To condense the steam back into water Hint 8). Which of the following is a disadvantage of thermal power plants? High efficiency Low capital cost Limited fuel availability Minimal environmental impact Hint 9). When was the first practical thermal power plant built? 1781 1881 1981 2001 Hint 10). Which fuel source was commonly used in early thermal power plants? Coal Natural gas Solar energy Wind power Hint 11). Who is credited with building the world’s first thermal power plant? Thomas Edison Nikola Tesla James Watt George Westinghouse Hint 12). In which country was the first large-scale thermal power plant established? United States United Kingdom Germany Japan Hint 13). Which technological innovation led to the significant expansion of thermal power plants in the mid-20th century? Steam turbines Diesel engines Photovoltaic cells Wind turbines Hint Read more about Steam Turbine 14). What is the primary purpose of a thermal power plant? Electricity generation Water desalination Natural gas extraction Oil refining Hint 15). Which environmental concern is associated with traditional thermal power plants? Water pollution Air pollution Soil erosion Noise pollution Hint 16). Which renewable energy source is often integrated into thermal power plants for improved efficiency? Solar power Geothermal energy Hydroelectric power Biomass Hint 17). What is the typical efficiency range of modern thermal power plants? 10-20% 30-40% 50-60% 70-80% Hint 18). What is the largest operational thermal power plant in the world as of 2021? Taichung Power Plant, Taiwan Nanticoke Generating Station, Canada Tuoketuo Power Station, China Belchatow Power Station, Poland Hint 19). Which formula is used to calculate the efficiency of a thermal power plant? ) Efficiency = (Useful output energy / Input energy) x 100 Efficiency = (Input energy / Power output) Efficiency = (Heat output / Fuel input) x 100 Efficiency = (Work output / Energy input) x 100 Hint 20). Which formula is used to calculate the heat rate of a thermal power plant? Heat Rate = (Useful output energy / Input energy) x 100 Heat Rate = (Input energy / Power output) Heat Rate = (Heat output / Fuel input) x 100 Heat Rate = (Work output / Energy input) x 100 Hint Thermal Power Plant MCQ for Quiz 21). Which formula is used to calculate the boiler efficiency of a thermal power plant? Efficiency = (Useful output energy / Input energy) x 100 Efficiency = (Input energy / Power output) Boiler Efficiency = (Heat output / Fuel input) x 100 Efficiency = (Work output / Energy input) x 100 Hint 22). Which formula is used to calculate the turbine efficiency of a thermal power plant? Efficiency = (Useful output energy / Input energy) x 100 Efficiency = (Input energy / Power output) Efficiency = (Heat output / Fuel input) x 100 Turbine Efficiency = (Work output / Energy input) x 100 Hint 23). Which formula is used to calculate the specific fuel consumption of a thermal power plant? Specific Fuel Consumption = (Useful output energy / Input energy) x 100 Specific Fuel Consumption = (Input energy / Power output) Specific Fuel Consumption = (Heat output / Fuel input) x 100 Specific Fuel Consumption = (Fuel consumption rate / Power output) Hint 24). What is the main cause of boiler tube failures in a thermal power plant? Overheating Corrosion Mechanical stress Water hammer Hint 25). What is the primary reason for turbine blade erosion in a thermal power plant? Cavitation Steam impingement Fouling Stress corrosion cracking Hint 26). Which of the following is a common problem associated with the condenser in a thermal power plant? Boiler scaling Low steam pressure Condenser vacuum loss Superheater leakage Hint 27). What is the primary reason for ash deposition in a thermal power plant boiler? High flue gas velocity Low combustion air temperature Excessive combustion air flow Low coal quality Hint 28). Which of the following is a common problem associated with the electrostatic precipitator (ESP) in a thermal power plant? High stack emissions Low boiler efficiency Dust hopper overflow Combustion instability Hint 29). Which equation represents the efficiency of a thermal power plant? ) Efficiency = (Work output) / (Work input) Efficiency = (Work input) / (Work output) Efficiency = (Heat output) / (Heat input) Efficiency = (Heat input) / (Heat output) Hint 30). The Carnot efficiency of a thermal power plant depends on which of the following factors? ) Temperature of the hot reservoir Temperature of the cold reservoir Both temperature of the hot and cold reservoirs Neither temperature of the hot nor cold reservoirs Hint 31). Which equation represents the Rankine cycle efficiency for a steam power plant? Efficiency = 1 – (Tc/Th) Efficiency = (Th – Tc) / Th Efficiency = (Th – Tc) / Tc Efficiency = 1 – (Tc/Th)^(γ-1) Hint 32). The heat rate of a thermal power plant is defined as ____________________? Heat input / Work input Heat input / Work output Work input / Heat input Work output / Heat input Hint 33). Which equation represents the power output of a thermal power plant? Power output = (Work output) / (Time) Power output = (Work input) / (Time) Power output = (Heat output) / (Time) Power output = (Heat input) / (Time) Hint 34). Which of the following is the primary source of energy in a thermal power plant? Solar energy Geothermal energy Fossil fuels Nuclear energy Hint 35). Which of the following is the main component responsible for converting heat energy into mechanical energy in a thermal power plant? Generator Turbine Condenser Boiler Hint 36). The function of a condenser in a thermal power plant is to ____________________? Generate steam Control the flow of coolant Convert mechanical energy into electrical energy Condense exhaust steam back into water Hint 37). Which of the following is NOT a type of thermal power plant? Combined Cycle Power Plant Geothermal Power Plant Hydroelectric Power Plant Nuclear Power Plant Hint 38). The efficiency of a thermal power plant is primarily affected by ________________? Ambient temperature Boiler pressure Fuel type Turbine size Hint 39). What is the primary objective of a Combined Heat and Power (CHP) plant? To generate electricity only To generate heat only To generate electricity and heat simultaneously To generate electricity, heat, and cooling simultaneously Hint 40). Which of the following fuels can be used in a CHP plant? Coal Natural gas Biomass All of the above Hint Thermal Power Plant MCQ for Exams 41). How does a CHP plant achieve higher overall efficiency compared to separate electricity and heat generation? By utilizing waste heat from electricity generation By using more efficient turbines By operating at higher temperatures By employing advanced cooling systems Hint 42). Which industry sector can benefit the most from CHP plants? Residential sector Commercial sector Industrial sector Agricultural sector Hint 43). What is the term used for the process of using waste heat from electricity generation in a CHP plant? Heat transfer Heat recovery Heat extraction Heat conversion Hint 44). Which of the following is a potential application of waste heat in a CHP plant? Space heating Water heating Industrial processes All of the above Hint 45). What is the environmental benefit of CHP plants? Reduced greenhouse gas emissions Increased air pollution Higher water consumption Increased solid waste generation Hint 46). Which factor affects the feasibility of implementing a CHP plant? Energy demand profile Fuel availability and cost Regulatory policies All of the above Hint 47). What is the primary fuel used in coal-fired power plants? Natural gas Coal Petroleum Biomass Hint 48). How does coal release energy in a coal-fired power plant? Nuclear fusion Chemical reactions Renewable sources None of the above Hint 49). Which component of a coal-fired power plant is responsible for converting heat energy into mechanical energy? Boiler Turbine Generator Condenser Hint 50). What is the purpose of a boiler in a coal-fired power plant? To generate electricity To convert coal into gas To produce steam To capture and store carbon emissions Hint For More MCQs Nuclear Power Plant Question & Answers Hydroelectric Power Plant Question & Answers Time's up
