Mechanical Engineering Department Exam Marks Distribution
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Questions and Answers

Failure analysis is the process of collecting data and analyzing it to determine the __________ cause of a failure.

False

Environmental conditions and operating loads are often the primary causes leading to a material’s failure. True or False?

True

Stress, impact, and frictional loading are examples of __________ conditions that frequently cause a material failure.

False

Failure due to overload can result in __________, fracture, crack propagation, and stress concentration.

<p>False</p> Signup and view all the answers

The prevention of failures is an important aspect discussed in the chapter on failure analysis. True or False?

<p>True</p> Signup and view all the answers

Failure modes/mechanisms are discussed in the chapter on failure analysis. True or False?

<p>True</p> Signup and view all the answers

One critical step in failure prevention methods is to properly select the ____________ that will be used to construct the given system component.

<p>False</p> Signup and view all the answers

Metallographic examination can reveal depth of hardening, grain size, phase present, non-metallic inclusions, and porosities. Is this statement true or false?

<p>True</p> Signup and view all the answers

The detection and collection of data for failure analysis includes gathering information about the loading situation, records, drawings, repair history, and description of failure situation (damage). Is this statement true or false?

<p>True</p> Signup and view all the answers

Improper material selection is listed as one of the potential failure causes. Is this statement true or false?

<p>True</p> Signup and view all the answers

Correct design involves designing for maximum stress including safety factor, avoiding stress raisers, etc. Is this statement true or false?

<p>True</p> Signup and view all the answers

Quenched and tempered materials lose strength at higher temperature. Is this statement true or false?

<p>True</p> Signup and view all the answers

Cold working and forging can create cracks, flaws, and distortion. Is this statement true or false?

<p>True</p> Signup and view all the answers

Welding can create gas porosity and cracks. Is this statement true or false?

<p>True</p> Signup and view all the answers

Recrystallization affects strength, as in welding of cold rolled sheets. Is this statement true or false?

<p>True</p> Signup and view all the answers

Inadequate environmental control is listed as one of the potential failure causes. Is this statement true or false?

<p>True</p> Signup and view all the answers

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