Concrete Technology MCQ

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

• Evaluation of cracks _________ be determined after cracking.
  ক

  Can

  খ

  Can’t

  গ

  Sometimes

  ঘ

  Depends on the structure
• Which of the following compound is used for fine polishing?
  ক

  Aluminum oxide

  খ

  Nitric oxide

  গ

  Silicon carbide

  ঘ

  Iron oxide
• In Concrete core test the strength is ________ at the top and _________ at the bottom.
  ক

  Lowest, lowest

  খ

  Lowest, highest

  গ

  Highest, lowest

  ঘ

  Highest, highest
• A ratio of core height-to-diameter of __________ gives a standard cylinder test.
  ক

  1

  খ

  2

  গ

  3

  ঘ

  4
• It is about __________ times the tensile stress determined by the splitting test.
  ক

  Equal

  খ

  .5

  গ

  1.5

  ঘ

  2
• Compressive strength of hardened concrete is done by _________
  ক

  Cube test

  খ

  Tensile splitting test

  গ

  Concrete core test

  ঘ

  Flexure test
• Evaluation of cracks ________ be determined before cracking.
  ক

  Can

  খ

  Can’t

  গ

  Sometimes

  ঘ

  Depends on the structure
• Which one can’t be the reason for the shrinkage of concrete?
  ক

  W/c ratio

  খ

  Temperature

  গ

  Cement content

  ঘ

  Formwork
• Plastic shrinkage cracking occurs in ________ hours after placing.
  ক

  .5

  খ

  24

  গ

  10

  ঘ

  5
• Is it possible to have 0% crack in our building?
  ক

  Yes

  খ

  No

  গ

  May be

  ঘ

  Can’t be determined
• Which can be the possible option for cracking in the building?
  ক

  Due to light load

  খ

  Low w/c ratio

  গ

  Temperature difference

  ঘ

  Gain of water
• What is the maximum w/c ratio?
  ক

  .2

  খ

  .3

  গ

  .4

  ঘ

  .5
• How can we prevent cracks in concrete structures?
  ক

  Due to heavy load

  খ

  Low w/c ratio

  গ

  Settlement of structure

  ঘ

  High water cement ratio
• Creep is ____ to the strength of concrete.
  ক

  Equal

  খ

  Similar

  গ

  Directly proportional

  ঘ

  Inversely proportional
• At the construction stage, binding wires ____________
  ক

  Should touch the formwork

  খ

  Should not touch the formwork

  গ

  To be turned outside

  ঘ

  To be turned whole structure
• Powder epoxy is fusion bonded to bar at about _________0C temperature.
  ক

  100

  খ

  250

  গ

  300

  ঘ

  350
• Cement not more than ________ months old should be used.
  ক

  1

  খ

  1.5

  গ

  2

  ঘ

  3
• What should be the minimum water cement ratio?
  ক

  .45

  খ

  .5

  গ

  <.45

  ঘ

  >.45
• Symptoms for aggressive ASR?
  ক

  It will show disintegration of the concrete evidenced by loss of the cement paste

  খ

  It will show concrete surfaces that are very rough in areas where the paste is leached

  গ

  Affected concrete does not exhibit telltale features too distinctly

  ঘ

  Expansion does not occur without reaction products
• Symptoms for aggressive ACR reaction?
  ক

  It will show disintegration of the concrete evidenced by loss of the cement paste

  খ

  It will show concrete surfaces that are very rough in areas where the paste is leached

  গ

  Affected concrete does not exhibit telltale features too distinctly

  ঘ

  Expansion does not occur without reaction products
• Symptoms for aggressive water attack?
  ক

  It will show disintegration of the concrete evidenced by loss of the cement paste

  খ

  It will show concrete surfaces that are very rough in areas where the paste is leached

  গ

  Affected concrete does not exhibit telltale features too distinctly

  ঘ

  Expansion does not occur without reaction products
• Symptoms for acid attack?
  ক

  It will show disintegration of the concrete evidenced by loss of the cement paste

  খ

  It will show concrete surfaces that are very rough in areas where the paste is leached

  গ

  Affected concrete does not exhibit telltale features too distinctly

  ঘ

  Expansion does not occur without reaction products
• Reduction in the volume due to shrinkage causes __________
  ক

  Low volume

  খ

  Volumetric strain

  গ

  Volumetric stress

  ঘ

  W/c ratio
• The rate of creep generally ____________ with the ____________ of the size of aggregates.
  ক

  Increase, increase

  খ

  Decrease, decease

  গ

  Increase, decrease

  ঘ

  2.5, 12mm
• The rate of creep rapidly ___________ with time.
  ক

  Increase

  খ

  Decrease

  গ

  Doesn’t affect

  ঘ

  Depends on the temperature
• Dry intervals in surface wetting leads to ____________
  ক

  Cracking

  খ

  Fogging

  গ

  High strength

  ঘ

  Good workability
• IS 1199:1959 is for __________
  ক

  Specification for standard sand for testing of cement

  খ

  Methods of samplingand analysis of concrete

  গ

  Specification for Portland-pozzolana cement: Part 2 Calcined clay based

  ঘ

  Methods of test for pozzolanicmaterials
• IS 650:1991 is for _____________
  ক

  Specification for standard sand for testing of cement

  খ

  Methods of samplingand analysis of concrete

  গ

  Specification for pozzolana cement

  ঘ

  Methods of test for pozzolanicmaterials
• IS 1727:1967 is for ____________
  ক

  Code of practice for general construction of plain and reinforced concrete for dams and other massive structures

  খ

  Specification for Portland pozzolana cement Part 1 Fly ash based

  গ

  Specification for Portland-pozzolana cement: Part 2 Calcined clay based

  ঘ

  Methods of test for pozzolanic materials
• IS 1489(Part 2):1991 is for ______________
  ক

  Code of practice for general construction of plain and reinforced concrete for dams and other massive structures

  খ

  Specification for Portland pozzolana cement Part 1 Flyash based

  গ

  Specification for Portland-pozzolana cement: Part 2 Calcined clay based

  ঘ

  Methods of test for pozzolanic materials