Lime MCQ

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

• Hydraulic lime resembles natural cement with about __________ of clay.
  ক

  15%

  খ

  20%

  গ

  30%

  ঘ

  60%
• Which of the following is not true about clamp burning?
  ক

  It is adopted for manufacturing lime on a small scale

  খ

  Best quality of lime is produced by this process

  গ

  It is uneconomical to manufacture lime by this process on a large scale

  ঘ

  Quantity of fuel required in this process is more
• Which of the following statements about kankar is false?
  ক

  It is used to manufacture natural hydraulic lime

  খ

  It is available in nodular and block form

  গ

  Kankar in nodular form can withstand heat without disintegration

  ঘ

  It is a pure limestone
• Time taken by hydraulic lime to slake is about __________
  ক

  3-4 hours

  খ

  7-10 hours

  গ

  12-48 hours

  ঘ

  60-65 hours
• Pure limestones are indicated by _________ colour.
  ক

  Brown

  খ

  Blue

  গ

  Grey

  ঘ

  White
• Which of the following is not true about hydraulic lime?
  ক

  Hydraulic lime consists of clay and some amount of ferrous oxide

  খ

  Hydraulic lime can set under water

  গ

  It has a perfectly white colour

  ঘ

  It is also known as water lime
• Clay content in feebly hydraulic lime is about ________
  ক

  2-4%

  খ

  5-10%

  গ

  11-20%

  ঘ

  21-30%
• Percentage of impurities in limestones should not exceed ________ for preparing fat lime.
  ক

  5%

  খ

  8%

  গ

  10%

  ঘ

  15%
• Fat lime slakes slowly while hydraulic lime slakes vigorously.
  ক

  True

  খ

  False
• Poor lime contains more than ________ of clay.
  ক

  5%

  খ

  10%

  গ

  20%

  ঘ

  30%
• Fat lime is also called _________
  ক

  Water lime

  খ

  Pure lime

  গ

  Impure lime

  ঘ

  Lean lime
• Which of the following is not a property of fat lime?
  ক

  It readily hardens

  খ

  The colour of fat lime is perfectly white

  গ

  Fat lime slakes vigorously

  ঘ

  Fat lime sets slowly in the presence of air
• In order to develop hydraulicity, it is necessary to have _________ and _________ present in chemical combination with the limestone.
  ক

  Alumina and carbon

  খ

  Magnesium and carbon

  গ

  Silica and carbon

  ঘ

  Alumina and silica
• Kankar is an impure limestone while white chalk is pure limestone.
  ক

  True

  খ

  False
• Which of the following is an autoclave binding material?
  ক

  Quick lime

  খ

  Hydraulic lime

  গ

  Gypsum

  ঘ

  Lime-silica
• Acid-resistant cement and gypsum are examples of _________ materials.
  ক

  Air binding

  খ

  Hydraulic binding

  গ

  Autoclave binding

  ঘ

  Sound binding
• Slaked lime is __________
  ক

  Calcium oxide

  খ

  Hydrated oxide of calcium

  গ

  Calcium carbonate

  ঘ

  Calcium silicate
• The chemical composition of quick lime is ____________
  ক

  CaS

  খ

  CaO

  গ

  MgO

  ঘ

  MgS
• Lime is obtained from the calcination of ___________
  ক

  Lime-silica

  খ

  Sandstone

  গ

  Limestone

  ঘ

  Lime-concrete
• The process of heating to redness in the presence of air is called __________
  ক

  Hydraulicity

  খ

  Setting

  গ

  Roasting

  ঘ

  Calcination