USCG Exam PracticeMaintenance, machine tools, drawings, and tables
Before performing any internal maintenance work on a diesel engine, which sequence of actions is required?
- A. Reduce load to idle, isolate fuel, engage turning gear
- ✓ Stop the engine, cool it, isolate starting air and fuel, and engage the turning gearCorrect
- C. Isolate starting air, engage turning gear, then allow the engine to coast to a stop
- D. Shut down fuel, lock out the throttle, and post a watch at the throttle station
Why B is correct
NAVEDTRA 14075 §3-1 specifies that before any internal work the engine is stopped, cooled, the starting air and fuel are isolated, and the turning gear is engaged so it cannot roll. The other options omit one or more of these required steps.
Cited:NAVEDTRA 14075 §3-1