This set of Thermal Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Classification of Steam Turbines”. 1. Steam turbine produces useful work in the form of rotation of turbine shaft, by extracting thermal energy from pressurized steam. a) True b) False 2. According to the number of pressure stages, steam turbines are classified into … Read more
This set of Thermal Engineering Interview Questions and Answers for Experienced people focuses on “Relationship Between Area, Velocity and Pressure in Nozzle Flow”. 1. Which of the following expressions correctly represents the relationship between cross-sectional area of a nozzle, fluid velocity and specific volume? a) b) c) = 0 d) 2. Which of the following … Read more
This set of Advanced Thermal Engineering Questions and Answers focuses on “Steam Nozzles – Super Saturated Flow and Wilson’s Line”. 1. What is Wilson line? a) It is an isothermal line, at which the condensation completes b) Saturation line of water is also called Wilson line c) It represents the limiting condition of undercooling at … Read more
This set of Thermal Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Nozzle Efficiency”. 1. The final velocity obtained after passing the steam through a nozzle is less than the calculated one. Which of the following is NOT a valid reason for the same? a) Friction between steam and nozzle surface b) Steam not … Read more
This set of Thermal Engineering Questions and Answers for Experienced people focuses on “Steam Flow Through Nozzles”. 1. A steam nozzle is a passage of varying cross section through which the kinetic energy of steam is converted into heat energy. a) True b) False 2. Which of the following statements about steam nozzles is FALSE? … Read more
This set of Thermal Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Steam Generators Performance – Boiler Efficiency”. 1. Which of the following is the correct formula for calculating boiler efficiency? a) η = b) η = c) η = d) η = 2. Which of the following is a fixed factor on which … Read more
This set of Basic Thermal Engineering Questions and Answers focuses on “Evaporative Capacity and Equivalent Evaporation”. 1. Which of the following CANNOT be the unit of ‘evaporative capacity’? a) kg of steam/h b) kg of steam/h/m2 of heating surface c) kg of steam/kg of air supplied d) kg of steam/kg of fuel fired 2. Which … Read more
This set of Thermal Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Artificial Draught”. 1. Mechanical draught is used in locomotives and small installations. a) True b) False 2. In case of Induced draught, where is the fan/blower installed? a) Near the base of chimney b) At the top of the chimney c) At … Read more
This set of Thermal Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Natural Draught”. 1. A 25 m high chimney is filled with hot gases of temperature 330°C. The temperature of outside air is 27°C. If 20 kg of air is supplied for complete combustion of 1 kg of fuel, calculate the velocity of … Read more
This set of Thermal Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Draught – Definition and Classification”. 1. What is draught? a) The condition of a dry boiler is called draught b) It’s a small pressure difference which causes the flow of gases c) It is a boiler mounting d) It is a boiler … Read more
