Mechanical Engineering Department Exam Marks Distribution

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

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

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

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

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

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

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

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

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?

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

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

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

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

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

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

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