High Temperature Corrosion MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on High Temperature Corrosion, 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 High Temperature Corrosion 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 High Temperature Corrosion mcq questions that explore various aspects of High Temperature Corrosion problems. Each MCQ is crafted to challenge your understanding of High Temperature Corrosion 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 High Temperature Corrosion MCQs are your pathway to success in mastering this essential Corrosion Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of High Temperature Corrosion. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your High Temperature Corrosion knowledge to the test? Let's get started with our carefully curated MCQs!

High Temperature Corrosion MCQs | Page 3 of 4

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Q21.
Which of the following is/are true regarding parabolic oxidation rate law?

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

Discuss
Answer: (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
Q22.
Which of the following metals follows logarithmic oxidation law?

a.

Aluminum

b.

Copper

c.

Iron

d.

Aluminum, copper, and iron

Discuss
Answer: (d).Aluminum, copper, and iron
Q23.
Metals that follow linear oxidation kinetics at low temperatures tend to oxidize catastrophicallyat high temperatures.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q24.
Which of the following metals results in the ignition in extreme cases?

a.

Sodium

b.

Magnesium

c.

Niobium

d.

Sodium, magnesium, and niobium

Discuss
Answer: (d).Sodium, magnesium, and niobium
Q25.
Which of the following metals results in the formation of volatile oxides?

a.

Molybdenum

b.

Tungsten

c.

Osmium, tungsten, molybdenum, and Vanadium

d.

Vanadium

Discuss
Answer: (c).Osmium, tungsten, molybdenum, and Vanadium
Q26.
Which of the following is/are true regarding internal corrosion?

a.

Corrosion products precipitate in the metal matrix

b.

Corrosion products precipitate in the metal matrix and metals such as Fe, Ni, and Co are highly prone to internal corrosion

c.

Corrosion occurs on external surfaces of metals

d.

It is due to the stable corrosion products of base metals

Discuss
Answer: (b).Corrosion products precipitate in the metal matrix and metals such as Fe, Ni, and Co are highly prone to internal corrosion
Q27.
Dilute alloying elements of base metals exhibiting a relatively high solubility and diffusivity for atomic oxygen are subject to internal corrosion.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q28.
Which of the following mechanical properties is/are important in structural applications of metals?

a.

Tensile strength

b.

Yield strength

c.

Ductility and Elasticity

d.

Tensile strength, Yield strength, Ductility, and Fracture toughness

Discuss
Answer: (d).Tensile strength, Yield strength, Ductility, and Fracture toughness
Q29.
Which of the following is/are correct regarding creep?

a.

It is the continuous plastic elongation of metal under constant load

b.

It is the high-temperature mechanical effect of a metal

c.

It is the continuous plastic elongation of metal under constant load at high temperature and it can be minimized by the fraction of grain boundaries

d.

It can be minimized by reducing the fraction of grain boundaries

Discuss
Answer: (c).It is the continuous plastic elongation of metal under constant load at high temperature and it can be minimized by the fraction of grain boundaries
Q30.
Which of the following is/are true regarding stress rupture?

a.

The stress required to cause a rupture in a predetermined time at a constant temperature

b.

It is important in short-term high-temperature applications

c.

Stress rupture is an important mechanical property for gas turbine or rocket engines

d.

The stress required to cause a rupture in short-term high-temperature applications at a predetermined time is known as stress rupture and it is an important mechanical property for gas turbines and rocket engines

Discuss
Answer: (d).The stress required to cause a rupture in short-term high-temperature applications at a predetermined time is known as stress rupture and it is an important mechanical property for gas turbines and rocket engines
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