Question 487General Subjects - Assistant Engineer

70% to pass

When performing a vibration analysis for rotating machinery, what is essential?

AA baseline vibration signature should be established as a reference, but no historical record of periodic analyses need be maintained. Vibration amplitudes at various frequencies are compared.

BA baseline vibration signature should be established as a reference, and a historical record of periodic analyses should be maintained. Vibration amplitudes at various frequencies are compared.

CA historical record of periodic analyses should be maintained, but no baseline vibration signature need be established as a reference. Vibration amplitudes at various frequencies are compared.

DA baseline vibration signature should be established as a reference, and a historical record of periodic analyses should be maintained. Vibration amplitudes are compared with no need to examine frequencies.

AI Explanation

The correct answer is B. Establishing a baseline vibration signature as a reference and maintaining a historical record of periodic vibration analyses are essential when performing vibration analysis for rotating machinery. This allows you to track changes in vibration patterns over time and identify any abnormalities or potential issues. Comparing vibration amplitudes at various frequencies is crucial, as changes in frequency can indicate specific problems with the machinery. The other options are incorrect because: A) does not require maintaining a historical record, C) does not require establishing a baseline reference, and D) does not emphasize the importance of analyzing vibration frequencies.