Corrosion Engineering Online Test Online Exam Quiz

Corrosion Engineering Online Test GK Quiz. Question and Answers related to Corrosion Engineering Online Test. MCQ (Multiple Choice Questions with answers about Corrosion Engineering Online Test

Which of the following metals follows logarithmic oxidation law?

Options

A : Aluminum

B : Copper

C : Iron

D : Aluminum, copper, and iron

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Diffusion-controlled oxidation can be minimized by decreasing the concentration of ionic defects in the scale.

Options

A : False

B : True

C :

D :

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Which of the following is/are true regarding parabolic oxidation rate law?

Options

A : It was proposed by C. Wagner

B : It states that square of weight loss is directly proportional to the time of exposure

C : It was proposed by C. Wagner which states that square of weight loss is directly proportional to the time of exposure and it resembles non-steady-state diffusion-controlled reactions

D : It resembles non-steady-state diffusion-controlled reactions

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What are the types of oxidation rate laws?

Options

A : Linear and parabolic law

B : Cubic and logarithmic law

C : Linear, parabolic and cubic law

D : Linear, parabolic, cubic and logarithmic law

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Which of the following oxidation rate law is depicted as x in the given figure?

Options

A : Linear law

B : Parabolic law

C : Cubic law

D : Parabolic law

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Which of the following oxidation rate law is depicted as z in the given figure?

Options

A : Linear law

B : Parabolic law

C : Cubic law

D : Parabolic law

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Which of the following metal doesn’t follow linear oxidation law?

Options

A : Sodium

B : Aluminum

C : Niobium

D : Potassium

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In general, all oxides are nonstoichiometric in nature their composition varies from an ideal molecular formula.

Options

A : True

B : False

C :

D :

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Which of the following is/are correct regarding linear oxidation law?

Options

A : Weight gain per unit area of the metal is directly proportional to the exposure time

B : It is a characteristic of porous or cracked scale

C : Sodium is an example that follows linear oxidation law

D : Weight gain per unit area of metal is directly proportional to exposure time, it is characteristic of porous or cracked scale and sodium follows linear oxidation law

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Which of the following is/are correct regarding the measurement of the rate of oxidation?

Options

A : Weight loss per unit area of metal is the measure of the rate of oxidation

B : Either weight loss or weight gain per unit area of metal is the measure of the rate of oxidation

C : Weight gain per unit area of metal is the measure of the rate of oxidation

D : Neither weight loss nor weight gain per unit area of metals is the measure of the rate of oxidation

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