Final Quiz in EMAT

How would you define destructive testing?

• Tests are carried out to the specimen's failure, in order to understand a specimen's performance or material behavior under different loads.

• Tests are carried out to the specimen's failure, in order to understand a specimen's performance or material behavior under same loads.

• Tests are carried out to the specimen's failure, in order to understand a specimen's performance or material behavior without loads.

• Tests are carried out to the specimen's failure, in order to understand a specimen's performance or material behavior under loads.

Why destructive testing is important?

• It is undertaken in order to understand a specimen’s physical or material behavior.

• It is undertaken in order to understand a specimen’s chemical or material behavior.

• It is undertaken in order to understand a specimen’s mechanical or material behavior.

• It is undertaken in order to understand a specimen’s performance or material behavior.

What is the main idea of stress testing?

• It used to test situations and detecting the failure which can be accomplished using a sound detector or temperature gauge which produces a signal to trigger the high-speed camera.

• It used to test situations and detecting the failure which can be accomplished using a sound detector or pressure gauge which produces a signal to trigger the high-speed camera.

• It used to test situations and detecting the failure which can be accomplished using a sound detector or strain gauge which produces a signal to trigger the high-speed camera.

• It used to test situations and detecting the failure which can be accomplished using a sound detector or stress gauge which produces a signal to trigger the high-speed camera.

What would the result be if after the original causes of any stresses has been removed in a solid material?

• Physical stresses will remain.

• Residual stresses will remain.

• Chemical stresses will remain.

• Mechanical stresses will remain.

Why does measurement of residual stresses work?

• It allows the designers and engineers to determine factors like near-surface and through-thickness residual stress distribution.

• It allows the designers and engineers to determine factors like near-surface and through-thickness physical stress distribution.

• It allows the designers and engineers to determine factors like near-surface and through-thickness chemical stress distribution.

• It allows the designers and engineers to determine factors like near-surface and through-thickness mechanical stress distribution.

What actions would you take to perform in warm forging or hot forging?

• By boiling the metals into a hot water.

• By cooling the metals.

• By heating the metals.

• By surfacing.

How can you classify forging according to temperature?

• As dry forging, wet forging, or hot forging.

• As cold forging, wet forging, or hot forging.

• As dry forging, warm forging, or hot forging.

• As cold forging, warm forging, or hot forging.

What can you point out about casting materials?

• It includes epoxy, concrete, plaster, and clay.

• It includes epoxy, concrete, plastics, and clay.

• It includes epoxy, concrete, plaster, and wood.

• It includes epoxy, concrete, plaster, and chemicals.

How would you explain advanced fabrication techniques?

• They have been used for the manufacture of micro- and nano-structured bone scaffolds by AM.

• They are too expensive to perform.

• They require specialized skills.

• They are limited in tools.

What explanation do you have for additive manufacturing (AM)?

• It is theoretical in nature.

• It is the process of making something from scratch.

• Additive manufacturing has been in manufacturing industry a long time ago.

• Scaffolds with controlled porosity, pore size, and inter-connectivity have been developed by AM processes.