🔍 Key Concepts

• Study where item 7 is located in relation to the thrust bearing and oil space. • Think about what device would normally sit in a small boss or pocket on top of a bearing housing to monitor operating conditions. • Consider how each choice (speed sensor, dip stick, thermometer, shaft deflection indicator) would have to be positioned to do its job.

💭 Think About

• Look closely at whether item 7 actually touches the shaft or moving parts, or if it seems to sit in a still area of the housing. What does that suggest about its purpose? • Which of the listed devices would need a clear vertical path down into the oil sump, and which would sit in a shallow well or pocket in contact with metal or lube? • Ask yourself which instrument would be permanently installed on the bearing housing, versus which would be a portable test tool used only during maintenance.

✅ Before You Answer

• Verify whether item 10 looks more like the part that would reach into the oil sump (compare shapes of 7 vs 10). • Check if item 7 appears aimed at measuring or sensing temperature, speed, oil level, or mechanical deflection, based on its placement and orientation. • Confirm that a true shaft deflection indicator would normally be a removable gauge or instrument, not a small fixed fitting in the bearing cap.