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MMET 207 Final Review Questions & Answers
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MMET 207 Final Review Questions & Answers
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MMET 207 Final Review Questions &Answers
what environments affect corrosion and why? Correct Ans--acids (oxidizing&reducing)
-0-7 pH
-bases
-7-14 pH
-salts (acid, neutral, alkaline)
-gases
-solvents
What hardness test method results in a very visible invention that can serve as record. Correct
Ans-Brinell
What is 0.2% offset yield (Engineering yield strength) Correct Ans-the stress at which a
material exhibits a specified deviation from proportionality of stress/strain. Also, it hard to
determine precisely so yield point is considered at an offset strain of 0.2%
What is a 3 digit number with or without a decimal after? Correct Ans-Casting (1xx.x)
What is Annealing? Correct Ans-Softening a steel by heating just into the austenitic range
What is coal heated without air and is pure form of carbon? Correct Ans-Coke
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