Question 138Steam Plants - QMED
70% to passA lube oil sample is taken from the main engine lube oil system and visually inspected. Which of the following would indicate water contamination?
AA clear, amber color
BA reddish-orange color
CA black color
DA milky-white color
AI Explanation
The correct answer is D) A milky-white color. A milky-white color in the lube oil sample would indicate the presence of water contamination. This is because water and oil do not mix, and the presence of water in the oil will cause the sample to appear cloudy or milky in appearance. The other options are incorrect because: A) a clear, amber color would indicate normal, uncontaminated lube oil; B) a reddish-orange color could indicate oxidation or overheating of the oil; and C) a black color could indicate sludge buildup or excessive wear of engine components.
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