Boiler Accessories MCQ

Test your knowledge with important Boiler Accessories MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Boiler Accessories MCQs at Bissoy

• Which of the following statements about superheaters is TRUE?
  ক

  Condensation losses in the cylinders and steam pipes are reduced

  খ

  Turbine erosion is avoided

  গ

  Increases efficiency of the steam plant

  ঘ

  Steam consumption of the engine is increased
• What is the function of a superheater?
  ক

  It increases the temperature of the air being supplied to furnace

  খ

  It increases the temperature of steam above saturation temperature

  গ

  It increases the temperature of feed water

  ঘ

  It increases the temperature of the flue gases leaving the furnace
• Which of the following statements about air preheaters is FALSE?
  ক

  It increases the temperature of air being supplied to the furnace

  খ

  Storage type air preheaters cannot be used in larger plants

  গ

  The temperature of the hot gases released through the chimney is kept minimum

  ঘ

  It facilitates the burning of fuel
• The degree of preheating does not depend on _____
  ক

  type of fuel

  খ

  initial temperature of air

  গ

  type of fuel burning equipment

  ঘ

  boiler and furnace ratings
• Which of the following is NOT a valid type of air preheater?
  ক

  Tubular type

  খ

  Plate type

  গ

  Temperature type

  ঘ

  Storage type
• Which of the following statement about convective superheater is TRUE?
  ক

  It is located in the furnace

  খ

  It absorbs heat from the burning fuel through radiant process

  গ

  It absorbs heat from the flue gases

  ঘ

  It is used where very high superheat temperature is required
• What is the function of a steam trap?
  ক

  It is used to store stem once the generation is complete

  খ

  It prevents the leakage of steam from the boiler

  গ

  It is used to increase the temperature of the steam

  ঘ

  It captures the condensed steam from steam pipes and steam separators
• Which of the following is NOT a valid type of steam separator?
  ক

  Baffle (Impact) type

  খ

  Tubular type

  গ

  Reverse current type

  ঘ

  Centrifugal type
• Steam separator reduces the wetness of the steam before it enters the engine or turbine.
  ক

  True

  খ

  False
• Convective superheater is placed in the furnace and it receives heat from the burning fuel through radiation.
  ক

  True

  খ

  False
• What is the function of an air preheater?
  ক

  It increases the temperature of air before it enters the furnace

  খ

  It increases the temperature of hot gases before they are released into the atmosphere

  গ

  It reduces the temperature of hot gases before they are released into the atmosphere

  ঘ

  It improves the quality of steam by mixing it with hot air
• Which of the following statements about vertical tube economiser (Green’s economiser) is FALSE?
  ক

  It is used with boilers operating below 25 bars

  খ

  It is an integral type economiser

  গ

  The direction of flow of flue gases is opposite to that of water

  ঘ

  It consists of a blow-off cock for removal of sediments
• What is the function of economizer?
  ক

  It is used to heat the feed water

  খ

  It is used to improve the quality of steam

  গ

  It is used to heat air being supplied for combustion

  ঘ

  It separates suspended water particles from steam
• Pumping efficiency of an injector is high.
  ক

  True

  খ

  False
• Which of the following is TRUE about an injector?
  ক

  It feeds water into the boiler

  খ

  Kinetic Energy of steam is utilized to increase velocity of feed water

  গ

  It is used where there isn’t enough space to install feed pump

  ঘ

  It is ideal for high capacity high pressure boilers
• The rotating element of the rotary feed pump is called _____
  ক

  impeller

  খ

  propeller

  গ

  armature

  ঘ

  propulsor
• Which of the following statements about reciprocating feed pumps is FALSE?
  ক

  Water is discharged in alternate strokes in single acting pump

  খ

  Water is discharged in each stroke in double acting pump

  গ

  They are supplied steam from the boiler itself

  ঘ

  In double acting pump water us displaced by only one side of the piston
• Which of the following statements about feed pump is TRUE?
  ক

  It is used to deliver feed water to the boiler

  খ

  It is used to take out steam from the boiler

  গ

  It is a boiler mounting

  ঘ

  It delivers air to the combustion chamber
• Which of the following is NOT a boiler accessory?
  ক

  Feed pump

  খ

  Steam trap

  গ

  Steam separator

  ঘ

  Mud hole (sight hole)
• Boiler Accessories increase efficiency of the steam boilers.
  ক

  True

  খ

  False