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During inspection of a medium speed diesel engine piston of the composite type it is found that the steel crown is loose at its connection to the alloy skirt. Further inspection reveals damage to the surfaces and evidence of metal particles where the two parts are connected. Select, from the options given, the likely cause of this type of damage.

01 Jul, 15:07

July 1, 2021, 3:07 p.m.
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Answer:

Fretting due to loss of compression at the joint between the components.

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01 Jul, 15:08

July 1, 2021, 3:08 p.m.
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