Cement MCQ

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

• Which of the following is not true about pozzuolana cement?
  ক

  Pozzuolana cement can resist the action of sulphates

  খ

  Less heat is evolved during its setting

  গ

  Pozzuolana cement possesses a very low tensile strength

  ঘ

  It imparts plasticity to the mortar prepared from it
• Which of the following is not a hydrophobic admixture?
  ক

  Lime silicate

  খ

  Acidol

  গ

  Naphthenesoap

  ঘ

  Oxidised petrolatum
• The final setting time of high alumina cement is about _______
  ক

  30 mins

  খ

  2 hours

  গ

  5 hours

  ঘ

  24 hours
• The total alumina content in high alumina cement should not be less than _______
  ক

  24%

  খ

  32%

  গ

  50%

  ঘ

  75%
• In England, high alumina cement is known by the trade name of ___________
  ক

  Lumnite

  খ

  Lumnite Fondu

  গ

  Limonite

  ঘ

  Cement Fondu
• The presence of cobalt in cement imparts _________ colour.
  ক

  Yellow

  খ

  Blue

  গ

  Black

  ঘ

  White
• Expanding cement is obtained by the addition of an expanding medium like _________ to the ordinary cement.
  ক

  Sodium silicate

  খ

  Potassium silicate

  গ

  Sodium aluminate

  ঘ

  Sulpho-aluminate
• The presence of chromium oxide in cement imparts _________ colour.
  ক

  Green

  খ

  Orange

  গ

  Blue

  ঘ

  Red
• The resistance to water of acid-resistant cement is increased by adding __________ of linseed oil.
  ক

  0.50%

  খ

  0.15%

  গ

  2.50%

  ঘ

  2.75%
• Sodium fluosilicate added in the acid-resistant cement decreases the resistance of cement to water and acid and also retards the hardening process of soluble glass.
  ক

  True

  খ

  False
• ___________ is the binding material of acid-resistant cement.
  ক

  Lime

  খ

  Soluble glass

  গ

  Soda ash

  ঘ

  Caustic soda
• The specific surface of cement should not be lesser than __________
  ক

  550 cm2/gm

  খ

  1250 cm2/gm

  গ

  2250 cm2/gm

  ঘ

  5250 cm2/gm
• Total sulphur content in the cement should not be more than _________
  ক

  1.75%

  খ

  2.75%

  গ

  5.25%

  ঘ

  7.25%
• The ratio of the percentage of alumina to that of oxide of iron in the cement should not be less than ________
  ক

  0.24

  খ

  0.39

  গ

  0.66

  ঘ

  0.79
• In the wet process in the manufacturing of portland cement, argillaceous material is thoroughly mixed with water in _________
  ক

  Wash mill

  খ

  Ball mill

  গ

  Reverberatory furnace

  ঘ

  Blast furnace
• High-alit contains tricalcium silicate more than ________
  ক

  10%

  খ

  13%

  গ

  30%

  ঘ

  60%
• The percentage of dicalcium silicate in belit is more than ________
  ক

  10%

  খ

  15%

  গ

  30%

  ঘ

  35%
• Which of the following is the quickest to react with water when the water is added to the cement?
  ক

  Tetra-calcium alumino-ferrite

  খ

  Tricalcium silicate

  গ

  Dicalcium silicate

  ঘ

  Tricalcium aluminate
• During the setting action of the cement, tricalcium aluminate is formed within ________ after adding water to the cement.
  ক

  6 hours

  খ

  24 hours

  গ

  4 days

  ঘ

  1 week
• Which of the following compounds is not formed during the setting action of the cement?
  ক

  Tricalcium aluminate

  খ

  Tricalcium silicate

  গ

  Dicalcium silicate

  ঘ

  Dimagnesium carbonate
• It results in the failure of concrete made from the cement if the amount of alkali oxides in it exceeds _________
  ক

  1%

  খ

  5%

  গ

  12%

  ঘ

  17%
• Calcium sulphate is present in ordinary cement in the form of __________
  ক

  Lime

  খ

  Alumina

  গ

  Gypsum

  ঘ

  Magnesia
• Clay predominates in calcareous materials while calcium carbonate predominates in argillaceous materials.
  ক

  True

  খ

  False
• Portland cement was invented by ___________
  ক

  John Raymond

  খ

  Joseph Aspdin

  গ

  Charles Frank

  ঘ

  James Watson
• The colour of natural cement is __________
  ক

  Brown

  খ

  Black

  গ

  White

  ঘ

  Yellow