Let's solve the given problem step by step: ### Problem Statement: A steel shaft of diameter \( 45^{+0.20}_{-0.10} \) mm is plugged into a bearing that has a diameter of \( 45^{+0.05}_{0.00} \) mm. The resulting fit is: ### Step 1: Find the possible range for shaft and bearing - **Shaft diameter range:** - Minimum: \( 45 - 0.10 = 44.90 \) mm - Maximum: \( 45 + 0.20 = 45.20 \) mm - **Bearing diameter range:** - Minimum: \( 45 + 0.00 = 45.00 \) mm - Maximum: \( 45 + 0.05 = 45.05 \) mm ### Step 2: Find the type of fit - **Maximum clearance:** (Bearing max) - (Shaft min) = \( 45.05 - 44.90 = 0.15 \) mm - **Minimum clearance (or maximum interference):** (Bearing min) - (Shaft max) = \( 45.00 - 45.20 = -0.20 \) mm ### Step 3: Interpret the results - If the clearance is positive, it's a clearance fit. - If the clearance is negative, it's an interference fit. - If it can be both positive and negative (as it is here), it's a **transition fit**. ### **Final Answer:** **Transition fit** (Option 10) is correct. --- **Summary:** The correct answer is: **transition fit** Because the fit can result in either clearance or interference depending on the actual sizes.