Chapter 5 STEAM BOILERS & ITS PERFORMANCE MCQs 20 min Score: 0 Attempted: 0/20 Subscribe 1. Which one of the vertical boiler (A) Both a and b (B) Babcock and Wilcox boiler (C) Cochran (D) None of theseShow All Answers 2. Economizer of boiler is fitted (A) After super heater (B) After air pre-heater (C) After steam space (D) None of theseShow All Answers 3. A platform, consisting of cast iron bars spaced apart, upon which fuel is burnt is called (A) Boiler shell (B) Furnace (C) Grate (D) Combustion chamberShow All Answers 4. A device used in boiler to control the flow of steam from the boiler to the main pipe and to shut off the steam completely when required is known as (A) Stop valve (B) Fusible plug (C) Blow off cock (D) EconomizerShow All Answers 5. Water tube boiler produce steam at a … pressure than that of fire tube boiler (A) Lower (B) Same (C) Higher (D) None of theseShow All Answers 6. A device used to heat the feed water by the heat of exhaust gases is called (A) Super heater (B) Blow-off Cock (C) Economizer (D) Stop valveShow All Answers 7. A device used to heat the air entering the boiler by the heat of exhaust gases is called (A) Super heater (B) Economizer (C) Air pre-heater (D) Stop valveShow All Answers 8. Water tubes in a simple vertical boiler are (A) Vertical (B) Horizontal (C) Inclined (D) None of theseShow All Answers 9. Which of the following is a boiler accessory? (A) Pressure Gauge (B) Stop valve (C) Blow-off cock (D) EconomizerShow All Answers 10. Which of the following is boiler mounting? (A) Economizer (B) Air pre-heater (C) Pressure gauge (D) Feed pumpShow All Answers 11. In a fire tube boiler … flows through the tubes (A) Flue gases (B) Water (C) Steam (D) AirShow All Answers 12. Cochran boiler is a … tube boiler (A) Fire (B) Smoke (C) Water (D) SingleShow All Answers 13. Water level indicator is a boiler … (A) Attachment (B) Mounting (C) Accessory (D) AssemblyShow All Answers 14. Simple vertical boiler is a … tube boiler (A) Multi (B) Smoke (C) Fire (D) WaterShow All Answers 15. … a Water tube boiler (A) Babcock and Wilcox (B) Cochran (C) Simple vertical boiler (D) Both a and bShow All Answers 16. Super heater is an … of a boiler (A) Accessory (B) Attachment (C) Mounting (D) AssemblyShow All Answers 17. Blow off cock is a boiler’s … (A) Accessory (B) Attachment (C) Mounting (D) AssemblyShow All Answers 18. A device used for raising the pressure of feed water is called (A) Pressure gauge (B) Air pre-heater (C) Economizer (D) Feed pumpShow All Answers 19. The diameter of fire tubes in Cochran boiler is (A) 62.5 mm (B) 6.25 mm (C) 72.5 mm (D) 92.5 mmShow All Answers 20. The number of fire tubes in a Cochran boiler (A) 165 (B) 115 (C) 75 (D) 225Show All Answers