Pitted reduction gear teeth having a deep blue color with evidence of overheating have been operated with _______. -题库考试答案搜索网

Pitted reduction gear teeth having a deep blue color with evidence of overheating have been operated with _______.

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2022-01-04 10:04

A、excessive speed
B、improper warm-up
C、extreme misalignment
D、inadequate lubrication

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正确答案

D

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