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Corrosion MCQ Questions And Answers

Corrosion MCQs : Here you will find MCQ Questions related to "Basics" in Corrosion Engineering. These Basic MCQ Questions Will help you to improve your Corrosion Engineering knowledge and will prepare you for various Examinations like Competitive Exams, Placements, Interviews and other Entrance Exmaniations

Question 1

Which of the following is true about Corrosion?

A. Corrosion is a natural process that converts a refined metal into a more chemically stable form
B. It is the gradual destruction of materials (usually a metal) by chemical and/or electrochemical reaction with their environment
C. Corrosion engineering is the field dedicated to controlling and preventing corrosion
D. All of the above

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Question 2

Which corrosion occurs when two different metals have physical or electrical contact with each other and are immersed in a common electrolyte?

A. Intergranular
B. Crevice
C. Galvanic
D. Erosion

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Question 3

Corrosion of material by furnace gases is classified as _____

A. dry corrosion
B. wet corrosion
C. galvanic corrosion
D. crevice corrosion

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Question 4

Corrosion can not also occur in materials other than metals.

C. Can be true or false
D. Can not say

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Question 5

If a metal undergoes uniform corrosion it becomes _____

A. thicker
B. perforated
C. thinner
D. thicker and perforated

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Question 6

which of the following metal is highly corrosive?

A. zinc
B. aluminum
C. silver
D. gold

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Question 7

What is the mechanism of dry corrosion?

A. Absorption
B. Electrochemical
C. Differential solubility
D. Both electrochemical and differential solubility

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Question 8

which of the following metal is less corrosive?

A. copper
B. bronze
C. brass
D. All of the above

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Question 9

Is it possible to chemically remove the products of corrosion?

A. Yes
B. No
C. Can be yes or no
D. Can not say

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Question 10

Which of the following materials will undergo Corrosion?

A. Metals only
B. Metals and Non-metals
C. Metals, Non-metals, Ceramics, Plastics and Rubbers
D. Metals, Non-metals, Ceramics and Plastics

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