Steam Boilers MCQ Questions I Steam Boiler quiz set 1 – Mechanicaltalks by A.R 0 Created on February 08, 2022Power plant engineering Steam Boilers set 1 1 / 25 Category: Steam Boilers set 1 The object of producing draught in a boiler is ___ to exhaust the gases of combustion from the combustion chamber all of the mentioned to discharge the gases of combustion to the atmosphere through the chimney to provide an adequate supply of air for the fuel combustion 2 / 25 Category: Steam Boilers set 1 An air preheater is installed _____ between the economiser and chimney none of the mentioned before the economiser before the superheater 3 / 25 Category: Steam Boilers set 1 The performance of a boiler is measured by the unburnt carbon steam formation moisture in fuel dry flue gases 4 / 25 Category: Steam Boilers set 1 Benson boiler requires 3 drums 2 drums 0 drums 1 drums 5 / 25 Category: Steam Boilers set 1 Lancashire boiler has ___ internal flue tubes. 3 1 4 2 6 / 25 Category: Steam Boilers set 1 What is the critical pressure of steam? 120 bar 221.2 bar 220 bar 300 bar 7 / 25 Category: Steam Boilers set 1 What is the pH value of water permissible for boiler? slightly less than 7 slightly more than 7 7 0 8 / 25 Category: Steam Boilers set 1 The diameter of flue tube in a Cornish boiler is ____ that of the shell. 1/3 2/5 1/4 3/5 9 / 25 Category: Steam Boilers set 1 The supercritical steam generators operate at a pressure range of Greater than 240 bar 220- 240 bar 200-240 bar 200-220 bar 10 / 25 Category: Steam Boilers set 1 The heat balance sheet for the boiler shows the steam formed by combustion of hydrogen per kg of fuel moisture present in the fuel complete account of heat supplied by 1 kg of dry fuel & the heat consumed all of the mentioned 11 / 25 Category: Steam Boilers set 1 What is the purpose of super heater in a boiler? to increase the temperature of saturated steam with increase in its pressure to increase the temperature of saturated steam without increase in its pressure none of the mentioned to increase the temperature of feedwater for better efficiency 12 / 25 Category: Steam Boilers set 1 In a water-tube boiler, water flows through? drum shell tube none of the mentioned 13 / 25 Category: Steam Boilers set 1 The subcritical steam generators operate between a pressure ranges of 100-110 bar 140- 200 bar 120-160 bar 130-180 bar 14 / 25 Category: Steam Boilers set 1 The formation of scale boiler leads to decrease in efficiency of boiler increase in heat transfer increase in efficiency of boiler decrease in maintenance of boiler 15 / 25 Category: Steam Boilers set 1 Which device used to separate condensate from the steam without letting steam escape? steam valve condenser none of the mentioned steam trap 16 / 25 Category: Steam Boilers set 1 Which of the following is a water tube boiler? Babcock & Wilcox boiler Lancashire boiler Locomotive boiler Cochran boiler 17 / 25 Category: Steam Boilers set 1 Which of the following are drumless once-through steam generators? Utility steam generators Supercritical steam generators Marine steam generators Subcritical steam generator 18 / 25 Category: Steam Boilers set 1 The diameter of a cylindrical shell of a Scotch marine boiler varies from 2.5 to 3.5m 1.5 to 2m 3.5 to 4.5m none of the mentioned 19 / 25 Category: Steam Boilers set 1 Which of the following statement is correct? A simple vertical boiler has one fire tube A fire tube boiler occupies less space than a water tube boiler, for a given power Steam at a high pressure and in large quantities can be produced with a simple vertical boiler all of the mentioned 20 / 25 Category: Steam Boilers set 1 Which of the following boiler is best suited to meet the fluctuating demand of steam? Lancashire boiler Cornish boiler Locomotive boiler Babcock and Wilcox boiler 21 / 25 Category: Steam Boilers set 1 The natural draught is produced by centrifugal fan Steam jet none of the mentioned chimney 22 / 25 Category: Steam Boilers set 1 What is the length of shell of a Locomotive boiler? 5m 4m 2m 3m 23 / 25 Category: Steam Boilers set 1 Locomotive boiler is a multitubular, horizontal, internally fired & mobile boiler single tube, horizontal, internally fired& stationary boiler multitubular, horizontal, externally fired & stationary boiler single tube, vertical, externally fired & stationary boiler 24 / 25 Category: Steam Boilers set 1 The number of fire tubes in a Cochran boiler are 225 165 75 175 25 / 25 Category: Steam Boilers set 1 In a fire-tube boiler, the water is in shell all of the mentioned tube drum Your score is The average score is 0% LinkedIn Facebook Twitter VKontakte 0% Restart quiz Spread the love