Electrochemistry

Corrosion MCQs with Answers

Welcome to the Corrosion MCQs with Answers, it helps learners quickly identify areas for improvement in Corrosion Online Test.

Corrosion is a natural electrochemical process that occurs when metals react with their environment, leading to deterioration and loss of material integrity. This phenomenon is pervasive in industries such as construction, transportation, and manufacturing, impacting infrastructure, equipment, and safety.

In a corrosion quiz, MCQs on corrosion typically cover various aspects of this process. Types of corrosion multiple choice questions explore different forms such as uniform corrosion, pitting corrosion, galvanic corrosion, and crevice corrosion, highlighting their causes and effects on metals.

Corrosion prevention methods MCQs focus on strategies to mitigate corrosion, including the use of protective coatings, inhibitors, alloying, cathodic protection, and design modifications.

Rusting exam questions specifically address the oxidation of iron and steel in the presence of oxygen and moisture, a common form of corrosion.

Corrosion mechanisms MCQs delve into the electrochemical reactions and environmental factors that accelerate metal degradation, including pH levels, temperature, and humidity.

Corrosion Online Quiz

By presenting 3 options to choose from, Corrosion Quiz which cover a wide range of topics and levels of difficulty, making them adaptable to various learning objectives and preferences. You will have to read all the given answers of Corrosion Questions and Answers and click over the correct answer.

  • Test Name: Corrosion MCQ Quiz Practice
  • Type: Quiz Test
  • Total Questions: 40
  • Total Marks: 40
  • Time: 40 minutes

Note: Answer of the questions will change randomly each time you start the test. Practice each quiz test at least 3 times if you want to secure High Marks. Once you are finished, click the View Results button. If any answer looks wrong to you in Quiz, simply click on question and comment below that question, so that we can update the answer in the quiz section.

Corrosion MCQs

Corrosion

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1 / 40

What is the process of converting iron or steel into a stable compound by exposure to air and moisture called?

2 / 40

What is the process of applying a protective layer of zinc to iron or steel by immersing them in a zinc bath called?

3 / 40

What is the process of removing impurities or contaminants from a metal surface to prevent corrosion called?

4 / 40

Which of the following metals is commonly used in cathodic protection systems?

5 / 40

What is the process of removing rust from metal surfaces using chemicals or mechanical methods called?

6 / 40

Which of the following is a type of atmospheric corrosion?

7 / 40

Which of the following is NOT a factor that affects the rate of corrosion?

8 / 40

What is the process of forming a protective oxide layer on the surface of aluminum to prevent corrosion called?

9 / 40

What is the process of removing the oxide layer from a metal surface to expose a clean metal surface called?

10 / 40

What is the primary mechanism of corrosion in acidic environments?

11 / 40

Which of the following environments accelerates the corrosion of metals?

12 / 40

Which of the following metals is commonly used as a sacrificial anode for protecting steel structures?

13 / 40

What is the process of protecting a metal surface from corrosion by applying a protective layer of paint or coating called?

14 / 40

Which of the following is an example of galvanic corrosion?

15 / 40

Which of the following is a common method of preventing corrosion in the automotive industry?

16 / 40

Which of the following is NOT a common type of corrosion?

17 / 40

Which of the following is a method of cathodic protection against corrosion?

18 / 40

What is the process of removing the oxide layer from a metal surface by chemical or electrochemical means called?

19 / 40

Which of the following metals is commonly used as a sacrificial anode in cathodic protection systems?

20 / 40

Which of the following is NOT a form of localized corrosion?

21 / 40

Which of the following is NOT a method of controlling humidity to prevent corrosion?

22 / 40

What is the process of applying a protective zinc coating to iron or steel to prevent rusting called?

23 / 40

Which of the following is NOT a method to prevent corrosion?

24 / 40

What is the process of coating a metal with a layer of another metal using an electric current called?

25 / 40

Which of the following metals is commonly used as sacrificial anodes to prevent corrosion?

26 / 40

Which of the following metals is commonly used as a barrier coating to protect steel from corrosion?

27 / 40

Which of the following statements about corrosion is true?

28 / 40

Which of the following metals is NOT susceptible to corrosion?

29 / 40

Which of the following is NOT a method of chemical treatment to prevent corrosion?

30 / 40

Which of the following metals forms a protective oxide layer when exposed to air, preventing further corrosion?

31 / 40

What is the process of coating a metal with a layer of oxide to protect it from corrosion called?

32 / 40

Corrosion of iron is commonly known as _______.

33 / 40

What is the process of converting a metal surface into an oxide layer to protect it from corrosion called?

34 / 40

What is the primary component of rust formed on iron or steel?

35 / 40

Which of the following is NOT a common method of preventing corrosion in underground pipelines?

36 / 40

What is the chemical reaction responsible for the formation of rust on iron or steel?

37 / 40

Which of the following is a common method of preventing corrosion in marine environments?

38 / 40

What is the gradual destruction of metals by chemical or electrochemical reaction with their environment called?

39 / 40

Which of the following factors does NOT affect the rate of atmospheric corrosion?

40 / 40

What is the process of coating a metal with a layer of zinc using electrolysis called?

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Corrosion Flashcards

What is the gradual destruction of metals by chemical or electrochemical reaction with their environment called?

Corrosion

Which of the following is NOT a common type of corrosion?

Galvanization

Corrosion of iron is commonly known as _______.

Rusting

What is the process of applying a protective zinc coating to iron or steel to prevent rusting called?

Galvanization

Which of the following is NOT a factor that affects the rate of corrosion?

Temperature

What is the chemical reaction responsible for the formation of rust on iron or steel?

Iron oxidation

Which of the following metals is commonly used as sacrificial anodes to prevent corrosion?

Zinc

Which of the following is an example of galvanic corrosion?

Rusting of iron

What is the process of converting a metal surface into an oxide layer to protect it from corrosion called?

Passivation

Which of the following statements about corrosion is true?

Corrosion occurs only in the presence of water

What is the primary component of rust formed on iron or steel?

Iron oxide

Which of the following metals is NOT susceptible to corrosion?

Gold

What is the process of removing rust from metal surfaces using chemicals or mechanical methods called?

Derusting

Which of the following is NOT a method to prevent corrosion?

Exposing to air

Which of the following environments accelerates the corrosion of metals?

Salty water

What is the process of applying a protective layer of zinc to iron or steel by immersing them in a zinc bath called?

Hot-dip galvanization

Which of the following is a method of cathodic protection against corrosion?

Impressed current

Which of the following metals is commonly used in cathodic protection systems?

Magnesium

Which of the following is NOT a form of localized corrosion?

General corrosion

What is the process of coating a metal with a layer of another metal using an electric current called?

Electroplating

Which of the following metals is commonly used as a barrier coating to protect steel from corrosion?

Aluminum

What is the primary mechanism of corrosion in acidic environments?

Hydrogen evolution

Which of the following metals forms a protective oxide layer when exposed to air, preventing further corrosion?

Aluminum

What is the process of removing the oxide layer from a metal surface to expose a clean metal surface called?

Pickling

Which of the following is NOT a method of controlling humidity to prevent corrosion?

Coating with paint

What is the process of coating a metal with a layer of oxide to protect it from corrosion called?

Anodizing

Which of the following is NOT a common method of preventing corrosion in underground pipelines?

Cathodic protection

What is the process of removing impurities or contaminants from a metal surface to prevent corrosion called?

Degreasing

Which of the following is a type of atmospheric corrosion?

Salt spray corrosion

Which of the following factors does NOT affect the rate of atmospheric corrosion?

Humidity

What is the process of converting iron or steel into a stable compound by exposure to air and moisture called?

Rustproofing

Which of the following metals is commonly used as a sacrificial anode for protecting steel structures?

Magnesium

What is the process of forming a protective oxide layer on the surface of aluminum to prevent corrosion called?

Anodizing

Which of the following is NOT a method of chemical treatment to prevent corrosion?

Coating with paint

What is the process of removing the oxide layer from a metal surface by chemical or electrochemical means called?

Derusting

Which of the following is a common method of preventing corrosion in marine environments?

Cathodic protection

What is the process of coating a metal with a layer of zinc using electrolysis called?

Electroplating

Which of the following metals is commonly used as a sacrificial anode in cathodic protection systems?

Zinc

What is the process of protecting a metal surface from corrosion by applying a protective layer of paint or coating called?

Coating

Which of the following is a common method of preventing corrosion in the automotive industry?

Rustproofing

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