When inspecting drive shafts, which of the following is NOT a factor to look for?

When inspecting drive shafts, tightness is not a primary factor to consider because the focus is typically on the physical integrity and condition of the shaft itself. The main concerns during an inspection are issues that could compromise the functionality and safety of the drive shafts during operation.

Buckling refers to deformation due to excessive load or stress, which can lead to mechanical failure. Separation indicates a break or disconnection between components, which could prevent the drive shafts from delivering power effectively. Chafing involves wear and tear due to friction against other components, which might lead to further damage.

On the other hand, while ensuring that drive shafts are adequately secured is essential, the term "tightness" is not specific enough to address the kind of detailed inspections that are critical for assessing the health of the drive shafts. Factors like proper alignment and connection integrity are more relevant than the general concept of tightness, making it less important in the context of a thorough drive shaft inspection.