Secondary Solid Fuels MCQ

Test your knowledge with important Secondary Solid Fuels MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30+ more Secondary Solid Fuels MCQs on Bissoy. Bissoy App

• High temperature carbonisation process is used to produce ______________
  ক

  Brown coal

  খ

  Gas coke

  গ

  Coal tar

  ঘ

  Coal gas
• How much yield of coke is produced in low temperature carbonisation?
  ক

  75-80 %

  খ

  60-70 %

  গ

  100 %

  ঘ

  85-90%
• What is done when the coke is too friable for use in carbonisation process?
  ক

  It is divided into small pieces

  খ

  Its maturity is made decreased

  গ

  The ash content is reduced

  ঘ

  It is pulverised
• Which type of carbonisation method is used for obtaining particular types of by-products?
  ক

  High temperature carbonisation

  খ

  Medium temperature carbonisation

  গ

  Low temperature carbonisation

  ঘ

  No by-products are formed
• In which type of plant does the carbonisation process is done?
  ক

  Thermal power plant

  খ

  Blast furnace process

  গ

  Coke-ovens

  ঘ

  Destructive distillation plant
• Which of the following coals have high rates of carbonisation?
  ক

  Non-caking coal

  খ

  Caking coal

  গ

  Coking coal

  ঘ

  Non-coking coal
• Which of the following forms a heat barrier in the process of carbonisation?
  ক

  Impurities present in the coal

  খ

  Moisture present in the coal

  গ

  Different structure of the machine

  ঘ

  Thin plastic zone formed by caking coal
• Coal is a good conductor of heat and electricity.
  ক

  True

  খ

  False
• What happens when coal is expanded during the plastic stage of caking?
  ক

  Closed texture coke is obtained

  খ

  Highly swollen open texture coke is obtained

  গ

  There is no change in the coal

  ঘ

  Coal breaks into a number of pieces
• At what temperature does the H2S and olefin gases are evolved in the process of carbonisation?
  ক

  700oC

  খ

  450oC

  গ

  270oC

  ঘ

  110oC
• Why can coal not be used as a metallurgical fuel?
  ক

  Because of its less purity

  খ

  Due to its high calorific value

  গ

  Due to the high cost of it

  ঘ

  Due to the presence of less impurities
• What happens when coke breaks into fine particles during the charging of the furnace?
  ক

  It increases the rate of combustion

  খ

  It cools down the temperature of furnace

  গ

  It chokes the air passages

  ঘ

  It stops the whole process
• Why should be a metallurgical coke porous in nature?
  ক

  To increase its calorific value

  খ

  To provide contact between carbon and oxygen

  গ

  To decrease its ash content

  ঘ

  For its easy storage
• Which of the following should be present in least amount, so as to give a good metallurgical coke?
  ক

  Ash content

  খ

  Moisture content

  গ

  Volatile matter

  ঘ

  Sulphur and phosphorous content
• If the coke formed from the residue of the caking coal is hard, porous and strong then it is called coking coal.
  ক

  True

  খ

  False
• Which type of coal gets soften on heating?
  ক

  Caking coal

  খ

  Coking coal

  গ

  Anthracite

  ঘ

  Semi-bituminous
• Which product is formed after the process of carbonisation?
  ক

  Charcoal

  খ

  Coal tar

  গ

  Coal gas

  ঘ

  Coke
• How can we remove volatile matter form briquettes?
  ক

  By baking them

  খ

  By cooling them

  গ

  By heating them

  ঘ

  By applying some extra pressure
• By which type of coal does briquettes are made?
  ক

  High grade fuel

  খ

  Ultra high grade coal

  গ

  Low grade fuel

  ঘ

  High grade coal
• Which of the following is a secondary solid fuel?
  ক

  Wood

  খ

  Charcoal

  গ

  Peat

  ঘ

  Anthracite