What type of fit occurs when the shaft diameter is slightly larger than the hole diameter?

The scenario described, where the shaft diameter is slightly larger than the hole diameter, indicates an Interference Fit. In this type of fit, the two components (shaft and hole) are designed so that when assembled, there is no space between them. The larger diameter of the shaft snugly fits into the smaller hole, creating an interference that helps to produce a strong connection once the parts are mated. This fit type is crucial for ensuring that parts do not move relative to each other, which is often desired in applications requiring tight tolerances and secure assemblies.

In contrast, a Clearance Fit would involve the hole being larger than the shaft, allowing for free movement. A Loose Fit could suggest a larger allowance for movement than what is considered in a Clearance Fit, and a Transition Fit represents a fit that can involve slight interference but also may allow for some clearance, depending on the specific tolerances considered. Therefore, these other types do not align with the definition provided in the question.