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Materials Engineering for Civil Engineers MCQ

1. What is a Dopant in semiconductors?

Answer

Correct Answer: A substance increasing the concentration of charge carriers

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2. What is an adsorbate?

Answer

Correct Answer: A component which belongs to an adsorption layer.

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3. What is absorption in regards to light?

Answer

Correct Answer: The optical phenomenon whereby the energy of a photon of light is assimilated within a substance

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4. What is an abrasion?

Answer

Correct Answer: A hard and wear-resistant material

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5. What is the process called when some grains increase abruptly in size?

Answer

Correct Answer: Abnormal grain growth

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