Which statement regarding orders of running speed is accurate?

Orders of running speed, often referred to in vibration analysis, are typically indicated in terms of "X," where "X" represents a multiple of the running speed of the machine. This is a critical concept in vibration monitoring and diagnostics, as it helps analysts understand how vibrations relate to the speed of the machine during operation.

When discussing orders, the context is generally centered around identifying specific frequencies that correlate to the machine's rotational speed. For example, if a machine is operating at a certain speed, vibrations at 1X would indicate vibrations occurring at that fundamental speed, while 2X would indicate vibrations at double that speed. This consistent use of "X" allows for standardized communication and understanding among professionals in vibration analysis.

Considering other options, while it is true that CPM (cycles per minute) and orders can apply to 2-pole motors, the equivalency does not hold for all configurations and is not a universal truth. Additionally, orders are not limited to variable speed machines; they can apply to any machine type at any operational speed. Hence, asserting orders are only for variable speed machines isn't accurate. Lastly, stating "None of the above" would imply that all previous statements were incorrect, which is not the case, particularly for the