Question 202Motor Plants - Assistant Engineer
70% to passA 'Blotter test' is a test performed on the lube oil of a diesel engine which can determine_______________.
Athe specific gravity of the oil
Bthe flash point of the oil
Ca change in the oils viscosity
Dthe TBN number of the oil
AI Explanation
The correct answer is C) a change in the oils viscosity. A 'Blotter test' is a simple field test performed on the lube oil of a diesel engine to detect any changes in the oil's viscosity. This can indicate potential issues with the engine, such as excessive wear, contamination, or degradation of the oil. By monitoring changes in viscosity over time, the engineer can identify when the oil needs to be changed or the engine serviced. The other answer choices are incorrect because they do not accurately describe what a Blotter test can determine. Specifically, a Blotter test does not measure the specific gravity (A), flash point (B), or TBN number (D) of the oil.
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