An Oil Analysis Has Been Done and the Results Show

question 7

Multiple Choice

An oil analysis has been done and the results show a decrease in viscosity. Which of the following CANNOT be the cause?

• A)Fuel dilution"
• B)Oxidation"
• C)Overheated oil
• D)VI (Viscosity Index) depletion from shear"

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Definitions:

MAD

Mean Absolute Deviation, a statistic that measures the average absolute deviation of observed values from their mean.

MSE

Mean Squared Error (MSE) is a measure used in statistics to quantify the average of the squares of the errors or deviations between estimated and actual values.

MAPE

Mean Absolute Percentage Error, a measure used to assess the accuracy of forecast models by calculating the average absolute percent error between predicted and observed values.

Exponential Smoothing

A forecasting technique that applies decreasing weights to past observations as they become older to predict future values.