Boiler Mounting Accessories MCQ

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

• Which type of air preheater is often preferred at thermal stations?
  ক

  Regenerative heater

  খ

  Tubular air heater

  গ

  Plate air heater

  ঘ

  Integral heater
• Which type of air heater consists of a bunch of hollow leaves of sheet metal?
  ক

  Plate air heater

  খ

  Tubular air preheater

  গ

  Regenerative

  ঘ

  Integral
• Select the benefit of preheating the air?
  ক

  Increased thermal efficiency

  খ

  Improved oxidation

  গ

  Controlled steam capacity

  ঘ

  Decreased power consumption
• Which type of economizer is used in Natural gas fired thermal plant?
  ক

  Condensing

  খ

  Steaming

  গ

  Integral

  ঘ

  Independent
• Which is the most common type of economizer used in the thermal plants?
  ক

  Steaming

  খ

  Integral

  গ

  Independent

  ঘ

  Non-Condensing
• How many types of economizers are there?
  ক

  6

  খ

  8

  গ

  5

  ঘ

  3
• What is the function of Re-heater in the boiler?
  ক

  To get excess amount of heat

  খ

  To make utilize of the left over water in the tubes

  গ

  Re-super heat partly expanded steam

  ঘ

  Better heating efficiency in winters
• In the method of ‘Tilting burners in the furnace’ at what degree are the burners tilted?
  ক

  10o

  খ

  15o

  গ

  30o

  ঘ

  45o
• How many methods of superheater temperature control are there?
  ক

  5

  খ

  8

  গ

  4

  ঘ

  2
• Super heaters are commonly classified into how many types?
  ক

  1

  খ

  2

  গ

  3

  ঘ

  4
• Which materials are used for Super heater tubes?
  ক

  Nickel chromium

  খ

  Alnico

  গ

  Chromium Molybdenum

  ঘ

  Magnox
• Where is steam separator installed in the boiler?
  ক

  Close to the engine

  খ

  Close to the economizer

  গ

  Close air preheater

  ঘ

  Near to the superheater
• How many types of steam traps are generally used in the boiler?
  ক

  1

  খ

  2

  গ

  3

  ঘ

  4
• When is it difficult to maintain the pressure inside the boiler?
  ক

  When steam demand is fluctuating

  খ

  When steam demand is high

  গ

  When steam demand is low

  ঘ

  When steam demand is constant
• Which of the following is an example of reciprocating pump?
  ক

  Lobe pump

  খ

  Barrel pump

  গ

  Vane pump

  ঘ

  Hand pump
• Rotary pumps are driven by _________
  ক

  electric motors

  খ

  batteries

  গ

  diesel engines

  ঘ

  biogas fuel
• What is the function of the feed water pump of a boiler?
  ক

  Pump water at high pressure

  খ

  To pump water at lower pressure

  গ

  To pull back the water from boiler

  ঘ

  To convert steam into water after the boiler process
• What does regenerative air preheater consists of?
  ক

  Rotor

  খ

  Skewers

  গ

  Propeller

  ঘ

  Piston
• Tubular air preheater of a boiler is also called as _________
  ক

  recuperative air preheater

  খ

  elliptical air preheater

  গ

  ovoid air preheater

  ঘ

  squarish air preheater
• What is the function Air heater in the boiler?
  ক

  Preheat the air before entering the boiler

  খ

  Recover the heat from flue gas

  গ

  Heating of economizer tubes

  ঘ

  Reheat the gas coming out of economizer
• What is the function of superheater in the boiler?
  ক

  Increase the temperature of steam

  খ

  Reheat the steam

  গ

  Superheat the feed water

  ঘ

  To heat the fuel gas
• What happens due to high temperature of feeds water in the economizer?
  ক

  Fuel consumption increases

  খ

  Fuel mechanical efficiency increases

  গ

  Fuel consumption decreases

  ঘ

  Fuel mechanical efficiency decreases
• How many types of safety valves are used in boiler in practice?
  ক

  1

  খ

  2

  গ

  3

  ঘ

  4
• What is the function of safety valves in the boiler?
  ক

  To prevent excessive steam pressure

  খ

  To prevent excessive air pressure

  গ

  To prevent water pressure

  ঘ

  To prevent from rising temperatures
• What is the function of fusible plug in the boiler?
  ক

  Protect the fire tube

  খ

  To trip on overload

  গ

  To act as a junction switch

  ঘ

  To maintain pressure
• What is the function of Blow down valve of a boiler?
  ক

  To remove sludge

  খ

  To build sediments

  গ

  To remove Flue gas

  ঘ

  To remove ash
• What type valve is a feed check valve of a boiler?
  ক

  One way valve

  খ

  Globe valve

  গ

  Reversible valve

  ঘ

  Disc check valve
• other than Steam stop valve in the boiler which is the other similar type of valve used?
  ক

  Non-reversible valve

  খ

  Transient valve

  গ

  Reversible valve

  ঘ

  Junction valve
• What is the function of pressure gauge in the boiler?
  ক

  To indicate steam pressure

  খ

  To indicate water pressure

  গ

  To indicate Air pressure

  ঘ

  To indicate Flue gas pressure
• How many level indicators are there in the water level indicator of a boiler?
  ক

  1

  খ

  2

  গ

  3

  ঘ

  4