MCQ about the Boiler and its technical details August 22, 2023 by Flair Pharma Results HD Quiz powered by harmonic design Table of Contents Toggle Results#1. What is the primary purpose of a boiler in a steam power plant?#2. Which of the following is not a type of boiler?#3. In a water-tube boiler, the water circulates through the tubes while the combustion gases flow around them. What advantage does this design offer?#4. What is the function of a superheater in a steam boiler?#5. Which type of steam is used in power generation and industrial processes?#6. What is the critical point of water in the context of steam generation?#7. What is the purpose of a deaerator in a steam boiler system?#8. What type of energy does steam carry in a steam power plant?#9. Which device is used to control the pressure of steam within a boiler?#10. Which law states that energy cannot be created or destroyed, only transferred or converted from one form to another?#11. What is the purpose of an economizer in a steam boiler system?#12. Which device is used to prevent excessive pressure buildup in a steam boiler?#13. Which parameter is used to measure the energy content of fuel?#14. What is the critical safety parameter that indicates the maximum pressure a boiler can withstand?#15. What is the term for the ratio of the amount of steam produced per unit of fuel consumed in a boiler?#16. What is the primary factor that determines the steam quality in a steam boiler?#17. Which formula is used to calculate the specific enthalpy of steam?#18. Which factor contributes to the formation of scale and deposits in a boiler?#19. What safety mechanism prevents a boiler from running dry and overheating?#20. What is boiler efficiency? #1. What is the primary purpose of a boiler in a steam power plant? a) To generate electricity a) To generate electricity b) To heat water b) To heat water c) To produce steam c) To produce steam d) To cool the environment d) To cool the environment #2. Which of the following is not a type of boiler? a) Firetube boiler a) Firetube boiler b) Watertube boiler b) Watertube boiler c) Condensing boiler c) Condensing boiler d) Combitube boiler d) Combitube boiler #3. In a water-tube boiler, the water circulates through the tubes while the combustion gases flow around them. What advantage does this design offer? a) Simpler construction a) Simpler construction b) Higher efficiency b) Higher efficiency c) Lower maintenance c) Lower maintenance d) Faster startup d) Faster startup #4. What is the function of a superheater in a steam boiler? a) To remove impurities from water a) To remove impurities from water b) To increase steam pressure b) To increase steam pressure c) To increase steam temperature c) To increase steam temperature d) To control combustion airflow d) To control combustion airflow #5. Which type of steam is used in power generation and industrial processes? a) Saturated steam a) Saturated steam b) Subcooled steam b) Subcooled steam c) Superheated steam c) Superheated steam d) Wet steam d) Wet steam #6. What is the critical point of water in the context of steam generation? a) The temperature at which water boils a) The temperature at which water boils b) The pressure at which steam condenses b) The pressure at which steam condenses c) The highest temperature and pressure at which water and steam can coexist c) The highest temperature and pressure at which water and steam can coexist d) The point at which water freezes d) The point at which water freezes #7. What is the purpose of a deaerator in a steam boiler system? a) To increase combustion efficiency a) To increase combustion efficiency b) To remove dissolved gases from feedwater b) To remove dissolved gases from feedwater c) To regulate steam pressure c) To regulate steam pressure d) To control superheating d) To control superheating #8. What type of energy does steam carry in a steam power plant? a) Kinetic energy a) Kinetic energy b) Potential energy b) Potential energy c) Thermal energy c) Thermal energy d) Chemical energy d) Chemical energy #9. Which device is used to control the pressure of steam within a boiler? a) Deaerator a) Deaerator b) Superheater b) Superheater c) Pressure relief valve c) Pressure relief valve d) Economizer d) Economizer #10. Which law states that energy cannot be created or destroyed, only transferred or converted from one form to another? a) Boyle's Law a) Boyle's Law b) Charles's Law b) Charles's Law c) Newton's Law c) Newton's Law d) The First Law of Thermodynamics d) The First Law of Thermodynamics #11. What is the purpose of an economizer in a steam boiler system? a) To increase combustion efficiency a) To increase combustion efficiency b) To control steam pressure b) To control steam pressure c) To remove dissolved gases from feedwater c) To remove dissolved gases from feedwater d) To recover heat from flue gases d) To recover heat from flue gases #12. Which device is used to prevent excessive pressure buildup in a steam boiler? a) Deaerator a) Deaerator b) Economizer b) Economizer c) Steam separator c) Steam separator d) Safety valve d) Safety valve #13. Which parameter is used to measure the energy content of fuel? a) Density a) Density b) Calorific value b) Calorific value c) Viscosity c) Viscosity d) Specific heat d) Specific heat #14. What is the critical safety parameter that indicates the maximum pressure a boiler can withstand? a) Superheating temperature a) Superheating temperature b) Steam flow rate b) Steam flow rate c) Design pressure c) Design pressure d) Steam quality d) Steam quality #15. What is the term for the ratio of the amount of steam produced per unit of fuel consumed in a boiler? a) Steam quality a) Steam quality b) Enthalpy ratio b) Enthalpy ratio c) Fuel efficiency c) Fuel efficiency d) Steam-to-fuel ratio d) Steam-to-fuel ratio #16. What is the primary factor that determines the steam quality in a steam boiler? a) Pressure a) Pressure b) Temperature b) Temperature c) Volume c) Volume d) Density d) Density #17. Which formula is used to calculate the specific enthalpy of steam? a) Q = m × c × ΔT a) Q = m × c × ΔT b) h = m × cp × ΔT b) h = m × cp × ΔT c) h = m × L c) h = m × L d) Q = m × L d) Q = m × L The formula calculates the change in enthalpy (h) of a substance (such as steam) based on its mass (m), specific heat capacity (cp), and temperature change (ΔT). The formula calculates the change in enthalpy (h) of a substance (such as steam) based on its mass (m), specific heat capacity (cp), and temperature change (ΔT). #18. Which factor contributes to the formation of scale and deposits in a boiler? a) Low water pH a) Low water pH b) High water flow rate b) High water flow rate c) Low boiler pressure c) Low boiler pressure d) High water hardness d) High water hardness #19. What safety mechanism prevents a boiler from running dry and overheating? a) Flame detector a) Flame detector b) Flow switch b) Flow switch c) Pressure relief valve c) Pressure relief valve d) Thermocouple d) Thermocouple #20. What is boiler efficiency? a) The ratio of steam pressure to temperature a) The ratio of steam pressure to temperature b) The ratio of fuel input to steam output b) The ratio of fuel input to steam output c) The ratio of water flow rate to steam flow rate c) The ratio of water flow rate to steam flow rate d) The ratio of electrical output to fuel input d) The ratio of electrical output to fuel input Boiler Efficiency (%) = (Steam Output / Fuel Input) × 100 Boiler Efficiency (%) = (Steam Output / Fuel Input) × 100 Finish
