Corrosion MCQ

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

• Casing Integrity can be checked by ________
  ক

  SP

  খ

  Temperature Survey

  গ

  Dual Latero Log

  ঘ

  Neutron Porosity
• What does CSC mean in corrosion?
  ক

  Calcium Stress Cracking

  খ

  Casing Stress Cracking

  গ

  Chromium Stress Cracking

  ঘ

  Chloride Stress Cracking
• What is the full form of CRA?
  ক

  Corrosion Resistant Alloy

  খ

  Corrosion Resistant to Alloy

  গ

  Casing Resistant Alloy

  ঘ

  Casing Recovering Assistant
• Sulphide Stress Cracking/ Hydrogen Embrittlement can’t be found in corrosion in oil and gas.
  ক

  True

  খ

  False
• Acidic corrosion can be found to happen in Oil and Gas production wells?
  ক

  True

  খ

  False
• The emf of the cathode in the zinc-air batteries is __________
  ক

  0.1V

  খ

  0.2V

  গ

  0.3V

  ঘ

  0.4V
• The emf of the anode in zinc-air batteries is ___________
  ক

  -1V

  খ

  -1.25V

  গ

  1V

  ঘ

  1.25V
• The drawback of this battery is the working voltage of battery is _________ due to the internal losses.
  ক

  Higher

  খ

  Lower

  গ

  Moderate

  ঘ

  Not considerable
• In zinc-air cells are composed of three parts of zinc used as ___________
  ক

  Anode

  খ

  Cathode

  গ

  Based on the half cell

  ঘ

  Can’t be said
• The advantages of the nickel metal hydrated batteries are having _________ more energy than the nickel cadmium batteries.
  ক

  100%

  খ

  50%

  গ

  75%

  ঘ

  25%
• Nickel metal hydrated batteries having the low cell voltage of __________
  ক

  1V

  খ

  1.2V

  গ

  1.3V

  ঘ

  1.4V
• The amount of iron wasted by corrosion each year is estimated about _________ of its annual production.
  ক

  1

  খ

  1/2

  গ

  1/4

  ঘ

  1/8
• Which of the following is not lost during corrosion?
  ক

  Malleability

  খ

  Ductility

  গ

  Conductivity

  ঘ

  Colour
• The corrosion is the reverse process of ____________
  ক

  Metal extraction

  খ

  Metal production

  গ

  Metal heating

  ঘ

  Metal moulding
• Iron undergoes corrosion to produce __________ coloured hydrated ferric oxide.
  ক

  Red

  খ

  Brown

  গ

  Green

  ঘ

  Blue
• The metals except ________ exist in nature in the form of their minerals or ores.
  ক

  Gold

  খ

  Silver

  গ

  Copper

  ঘ

  Iron
• In corrosion, as a result of decay, the metals are not converted into __________
  ক

  Oxides

  খ

  Hydroxides

  গ

  Carbonates

  ঘ

  Peroxides
• Which of the following metal does not corrode?
  ক

  Iron

  খ

  Zinc

  গ

  Copper

  ঘ

  Magnesium
• Which of the following is the overall reaction of rusting?
  ক

  2Fe(s) → 2Fe2+ + 4e–

  খ

  O2 (g)+4H+(aq)+4e–⟶2H2O(l)

  গ

  2Fe(s) + O2(g) + 4H+(aq) → 2Fe2+(aq) + 2H2O(l)

  ঘ

  H2O ⇌ H+ + OH–
• Which of the following is not essential for rusting to take place?
  ক

  Metal (like iron)

  খ

  Oxygen

  গ

  Moisture

  ঘ

  Light
• Which of the following is not a method of prevention of corrosion?
  ক

  Galvanization

  খ

  Anti-rust solutions

  গ

  Cathodic protection

  ঘ

  Heating
• Which of the following does not cause rusting of iron?
  ক

  Moisture

  খ

  Vacuum

  গ

  SO2

  ঘ

  CO2
• Magnesium is used as a sacrificial metal to protect iron from rust.
  ক

  True

  খ

  False
• Which of the following statements regarding corrosion is true?
  ক

  Corrosion does not depend on the reactivity of the metal

  খ

  Presence of impurities does not affect the rate of corrosion

  গ

  Strains in metals affect the rate of corrosion

  ঘ

  Presence of electrolytes does not affect the rate of corrosion
• What is the method of protection of iron by coating it with zinc called?
  ক

  Tinning

  খ

  Cathodic protection

  গ

  Galvanization

  ঘ

  Anti-rust solutions
• Rusting of iron is a type of corrosion.
  ক

  True

  খ

  False