🔍 Key Concepts

• Identify what Item #10 does in the governor linkage (is it connected to the flyweights, the pilot valve, or the speeder spring force?) • Think about whether a failure of Item #10 would cause the fuel rack to move toward MORE fuel or LESS fuel when the engine is already at full load. • Recall that in a mechanical-hydraulic governor, loss of control linkage usually sends the engine toward either no fuel (shutdown) or maximum fuel (overspeed) depending on how the spring and flyweights are connected.

💭 Think About

• Trace the force path from the speeder spring and the flyweights to the fuel control: if Item #10 disappears, which force is still acting on the fuel rack? • Ask yourself: at full load, are the flyweights trying to slow the engine down or speed it up? If their control is lost, which way will the fuel rack move? • Compare what would happen to engine speed if the governor could no longer reduce fuel when RPM increased. What protection remains? (think: over‑speed trip).

✅ Before You Answer

• Verify from the diagram whether Item #10 is between the flyweights and the pilot valve, or between the speeder spring and the pilot valve. • Confirm which direction of pilot‑valve/fuel‑rack movement corresponds to increasing fuel and which to decreasing fuel in this governor type. • Before choosing, check which option best matches a condition where the governor can no longer correct an increase in RPM, and only the independent overspeed trip can stop the rise in speed.