Modern Theory Principles and Applications MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Modern Theory Principles and Applications, a fundamental topic in the field of Corrosion Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Modern Theory Principles and Applications MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Modern Theory Principles and Applications mcq questions that explore various aspects of Modern Theory Principles and Applications problems. Each MCQ is crafted to challenge your understanding of Modern Theory Principles and Applications principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Corrosion Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Modern Theory Principles and Applications MCQs are your pathway to success in mastering this essential Corrosion Engineering topic.

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Modern Theory Principles and Applications MCQs | Page 8 of 9

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Q71.
Which of the following is depicted in the given mixed potential schematic?

a.

Dissolution of zinc

b.

Oxidation of hydrogen

c.

Reduction of zinc

d.

Dissolution of copper

Discuss
Answer: (a).Dissolution of zinc
Q72.
What is depicted in the given polarization curve?

a.

Cathodic dissolution of typical active-passive transition metal

b.

Anodic dissolution of typical active-passive transition metal

c.

Anodic dissolution of a metal

d.

Cathodic dissolution of a metal

Discuss
Answer: (b).Anodic dissolution of typical active-passive transition metal
Q73.
Which of the following statements is/are correct regarding the given schematic?

a.

Increase in acid concentration and temperature increase the passive potential

b.

Increase in acid concentration and temperature increase critical current density

c.

The relative reduction in the size of the passive region

d.

Increase in acid concentration and temperature increase critical current density, passive potential and we can observe a relative reduction in the size of the passive region

Discuss
Answer: (d).Increase in acid concentration and temperature increase critical current density, passive potential and we can observe a relative reduction in the size of the passive region
Q74.
Which of the following is described in the given figure?

a.

Effect of oxidizers concentration on cathodic behavior of active metal

b.

Effect of oxidizers concentration on the electrochemical behavior of active metal

c.

Effect of oxidizers concentration on the electrochemical behavior of active-passive transition metal

d.

Effect of oxidizers concentration on cathodic behavior of active-passive transition metal

Discuss
Answer: (c).Effect of oxidizers concentration on the electrochemical behavior of active-passive transition metal
Q75.
What is the potential of oxidizers at which metal passivation starts according to a given figure?

a.

Concentration corresponding to C

b.

Concentration corresponding to D

c.

Concentration corresponding to A

d.

Concentration corresponding to B

Discuss
Answer: (a).Concentration corresponding to C
Q76.
Which of the following is described in the given figure?

a.

Effect of velocity on anodic dissolution of oxygen

b.

Effect of velocity on the electrochemical behavior of active-passive transition metal

c.

Effect of velocity on the electrochemical behavior of a normal metal

d.

Effect of velocity on the cathodic dissolution of metal

Discuss
Answer: (c).Effect of velocity on the electrochemical behavior of a normal metal
Q77.
Which of the following is depicted in the given figure?

a.

Galvanic effect of copper-platinum

b.

Corrosion of platinum

c.

Corrosion of Zinc

d.

Galvanic effect of zinc-platinum

Discuss
Answer: (d).Galvanic effect of zinc-platinum
Q78.
Which of the following is depicted in the given figure?

a.

Galvanic effect of the zinc-platinum couple

b.

Effect of the velocity of zinc-platinum couple

c.

Effect of the cathode-anode area ratio of a zinc-platinum couple

d.

Effect of oxidizers on the zinc-platinum couple

Discuss
Answer: (c).Effect of the cathode-anode area ratio of a zinc-platinum couple
Q79.
Which of the following is described in the given figure?

a.

Protection range for anodic protection for an active metal

b.

Protection range for anodic protection for an active-passive transition metal

c.

Protection range for cathodic protection for an active-passive transition metal

d.

Protection range for cathodic protection for an active metal

Discuss
Answer: (b).Protection range for anodic protection for an active-passive transition metal
Q80.
Which of the following is depicted in the given figure?

a.

Electric circuit for cathodic polarization measurements

b.

Electric circuit for anodic polarization measurements

c.

Electric circuit for cathodic protection

d.

Electric circuit for sacrificial anode system

Discuss
Answer: (a).Electric circuit for cathodic polarization measurements
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