Engineering, 22.06.2020 20:57 lolololol21
Steel sphere with diameter is to be hardened by first heating it to uniform
temperature and then quenching it in large bath of water at . The
following data may be used surface heat transfer coefficient , thermal
conductivity of steel , specific heat of steel , and density of
steel . Calculate: (a) time elapsed in cooling the surface of sphere to
and (b) time elapsed in cooling the center of sphere to .
Answers: 2
Engineering, 03.07.2019 14:10
The y form of iron is known as: a) ferrite b) cementite c) perlite d) austenite
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Engineering, 04.07.2019 18:10
Steel is coated with a thin layer of ceramic to protect against corrosion. what do you expect to happen to the coating when the temperature of the steel is increased significantly? explain.
Answers: 1
Engineering, 04.07.2019 18:20
Most leaks in reciprocating air compressors can be detected and minimized by: (clo4) a)-detecting leakage areas using ultrasonic acoustic detector. b)-tightening joints and connections c)-replacing faulty equipment d)-all of the given options
Answers: 2
Engineering, 04.07.2019 18:20
Prove the equivalence between the two statements of the 2nd law of thermodynamics (i.e., a violation of one statement leads to the violatio the other statement)
Answers: 2
Steel sphere with diameter is to be hardened by first heating it to uniform
temperature and then qu...
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