Calcination and Slaking of Lime MCQ

Test your knowledge with important Calcination and Slaking of Lime MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30+ more Calcination and Slaking of Lime MCQs on Bissoy. Bissoy App

• Why is the middle portion in a continuous kiln widened?
  ক

  To accommodate more fuel

  খ

  To collect lime at bottom

  গ

  To allow the flow of limestone from top

  ঘ

  To accommodate hot gases of combustion
• Rate of hydration (slaking) does not depend on:
  ক

  Degree of burning of lime

  খ

  Degree of agitation

  গ

  Atmospheric conditions

  ঘ

  Composition of lime
• The quantity of water to be added for hydrating 100kg of lime is:
  ক

  10 litres

  খ

  1 litre

  গ

  15 litres

  ঘ

  32 litres
• The lime-milk can be utilized after and for:
  ক

  2-3 days for putty

  খ

  2-3 hours for putty

  গ

  2-3 days for waste water treatment

  ঘ

  2-3 hours for waste water treatment
• In tank slaking, the second tank (60-75cm deep) is filled with:
  ক

  Water

  খ

  Lime-milk

  গ

  Lime

  ঘ

  Limestone
• How many brick lined tanks are used in tank slaking method?
  ক

  2

  খ

  1

  গ

  4

  ঘ

  3
• Slaking of lime refers to:
  ক

  Mixing NaCl in hydraulic lime

  খ

  Mixing water in quick lime

  গ

  Mixing water in limestone

  ঘ

  Mixing NaCl in quick lime
• Which one of the following is an advantage of Kiln burning over clamp burning?
  ক

  Burning is not complete

  খ

  Requires more fuel

  গ

  No wastage of lime

  ঘ

  Time effective
• In which feed type kiln, limestone does not come in contact with fuel?
  ক

  Single feed

  খ

  Isolated feed

  গ

  Separate feed

  ঘ

  Mixed feed
• The temperature at which standard Gibbs free energy is zero for calcination reaction is called:
  ক

  Absolute temperature

  খ

  Negative temperature

  গ

  Transition temperature

  ঘ

  Thermal decomposition temperature
• Which of the following is not an example of Calcination process?
  ক

  Decomposition of Calcium Chlorate

  খ

  Decomposition of volatile matter in petroleum coke

  গ

  Removal of ammonium ions in synthesis of zeolites

  ঘ

  Decomposition of hydrated minerals
• The term Calcination comes from:
  ক

  Greek word Calcinare

  খ

  Latin word Calcinare

  গ

  Greek word Calcinate

  ঘ

  Latin word Calcinate
• How can one understand the completion of the burning of lime?
  ক

  Blue flame at the top disappears

  খ

  Blue flame appears at the top

  গ

  Smoke is released in huge quantity

  ঘ

  Red flame appears at the top
• How is the arrangement in a clamp, if the fuel used is coal?
  ক

  Stacked in alternate layers

  খ

  Placed on a platform

  গ

  Mixed and poured into a basin

  ঘ

  Heaped
• Which of the following methods yields quick, small supplies of Quick Lime?
  ক

  Intermittent kiln

  খ

  Continuous kiln

  গ

  Clamp burning

  ঘ

  Kankar burning