Which of the devices shown in the...

Which of the devices shown in the illustration should be used with a bridge gage? Illustration GS-0073

🔍 Key Concepts

• Identify the purpose of a bridge gage in marine engineering measurements (what does it usually measure on a shaft or journal?). • Match each illustrated tool with its typical use: feeler gage, depth micrometer, vernier caliper, and outside micrometer. • Think about which tool is designed to measure outside diameters or thicknesses when used with a separate fixture.

💭 Think About

• First, recall what component the bridge gage spans across and what dimension you actually read from it. Is it an inside depth, a gap, or an outside diameter? • Look at how each tool contacts the work: does it read depth from a reference surface, slide along a scale, or clamp around a round part? Which of these motions best fits how a bridge gage would transmit its measurement? • Ask yourself: if the bridge gage holds or supports something over a shaft, which of these tools would you place in or on that bridge to take a precise reading?

✅ Before You Answer

• Be sure you can name each device in the illustration correctly before answering (A–D). • Verify which instrument is normally paired with fixtures or jigs (like a bridge) to extend its measuring range or adapt it to curved surfaces — that’s the one a bridge gage is designed to work with. • Eliminate any tools that are already complete "stand‑alone" gages for depth or clearance and are not typically used in combination with another frame or bridge.

🔍 Key Concepts

💭 Think About

✅ Before You Answer