Refractories and Dielectric Materials MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Refractories and Dielectric Materials, a fundamental topic in the field of Engineering Materials. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Refractories and Dielectric Materials 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 Refractories and Dielectric Materials mcq questions that explore various aspects of Refractories and Dielectric Materials problems. Each MCQ is crafted to challenge your understanding of Refractories and Dielectric Materials principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Engineering Materials tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Refractories and Dielectric Materials MCQs are your pathway to success in mastering this essential Engineering Materials topic.

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Refractories and Dielectric Materials MCQs | Page 3 of 4

Q21.
TCP phase of nickel-based superalloys are formed at a temperature of _______
Discuss
Answer: (d).> 750°C
Q22.
Which of the following is not an effect of adding boron and silicon to superalloys?
Discuss
Answer: (c).Increases spalling
Q23.
The thermal coating ‘thermally grown oxide’ is formed by the oxidation of _______
Discuss
Answer: (d).Aluminum
Q24.
Which of the following applications does a tungsten-carbide coating provide?
Discuss
Answer: (c).Loss of coating mass
Discuss
Answer: (b).8.854 * 10⁻¹² F m⁻¹
Q26.
What is the unit of polarization?
Discuss
Answer: (c).Cm⁻²
Q27.
How is the dielectric strength denoted as?
Discuss
Answer: (b).Vm⁻¹
Discuss
Answer: (d).1.602 * 10⁻¹⁹
Discuss
Answer: (c).Decreases with an increase in humidity
Discuss
Answer: (a).0.18 * 10⁻⁴⁰ Fm²
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