Metallurgical Testing and Inspection MCQ Questions and Answers

Metallurgical Testing and Inspection MCQ Questions and Answers | Metallurgical Engineering

Enhance your knowledge of Metallurgical Testing and Inspection with this comprehensive collection of MCQ questions and answers. These MCQ questions and answers in Metallurgical Testing and Inspection are specifically designed for students of Metallurgical Engineering who are preparing for the GATE Exam. Strengthen your preparation and excel in your studies with this valuable resource. Page-5 section-1

Creep rate in ternary stage

A) Decreases B) Constant C) Increases D) None

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Answer & Solution

Answer: Option C

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The tensile load-elongation curve of a metal does not describe

A) work hardening B) yield stress C) anisotropy index D) necking strain

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Answer & Solution

Answer: Option C

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What is the minimum age in years at which a person may perform radiography

A) 15 B) 18 C) 21 D) 30

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Answer & Solution

Answer: Option B

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The unit of strain is:

A) Pascals B) Meter C) Dimensionless D) Newton

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Answer & Solution

Answer: Option C

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Torsional stress multiplied with original cross sectional area is

A) Maximum twisting load B) Minimum twisting load C) Minimum shear load D) Yield shear load

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Answer & Solution

Answer: Option B

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An advantage of a gamma ray source is

A) Radiation may be turned on or off at will B) Outside power is normally not required C) Less shielding is required than for X ray D) All of the above

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Answer & Solution

Answer: Option B

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For dye-penetrant test, identify the correct statement.

A) Pre and post-cleaning of parts are not required B) Internal defects can be detected C) Surface oxides helps in crack indentification D) Dye with low contact angle is required

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Answer & Solution

Answer: Option D

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Crack propagation in metallic materials is detected by the NDT method:

A) Eddy current testing B) Magnetic particle inspection C) Accoustic emission testing D) Ultrasonic testing

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Answer & Solution

Answer: Option B

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Fracture toughness, KIC, decreases with

A) increasing temperature B) increasing strain rate C) increase in yield strength D) increase in grain size

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Answer & Solution

Answer: Option B

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In the context of tensile test of a ductile alloy, the following observations were made. Choose the correct ones from the following observations:
P. Per cent elongation is independent of the dimensions of the test specimens.
Q. The number of necking instabilities are different in cylindrical and sheet specimens.
R. The range of strain rates to be used for 'static tensile test' is 10^-1 to 10^-5 s^-1.
R. The yield stress is independent of the temperature of the test.

A) Q, R, S B) P, Q, R C) Q, R D) R, S

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Answer & Solution

Answer: Option C

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