Which device trips and shuts down the GE engine if gases develop in the crankcase?

Which device trips and shuts down the GE engine if gases develop in the crankcase?

• A. Bubble-Type Sight Glass
• B. Low Oil Device
• C. Fuel Pressure Gauge
• D. Crankcase Overpressure Protective Device, (GE)

Answer: (D)

The critical concept is a protective system that detects abnormal crankcase pressure caused by gas buildup and automatically shuts the engine down to prevent damage. The device that does this for GE engines is the Crankcase Overpressure Protective Device. When gases accumulate in the crankcase and pressure rises, this protector senses the overpressure and triggers a shutdown, safeguarding the engine from possible crankcase rupture, oil loss, or fire risk. Why the other items don’t apply: a bubble-type sight glass only indicates oil level, not engine shutdown due to crankcase gas. a low oil device responds to oil pressure or level issues but not crankcase gas buildup. a fuel pressure gauge monitors the fuel system, not crankcase pressure or protective shutdown.

The critical concept is a protective system that detects abnormal crankcase pressure caused by gas buildup and automatically shuts the engine down to prevent damage. The device that does this for GE engines is the Crankcase Overpressure Protective Device. When gases accumulate in the crankcase and pressure rises, this protector senses the overpressure and triggers a shutdown, safeguarding the engine from possible crankcase rupture, oil loss, or fire risk.

Why the other items don’t apply: a bubble-type sight glass only indicates oil level, not engine shutdown due to crankcase gas. a low oil device responds to oil pressure or level issues but not crankcase gas buildup. a fuel pressure gauge monitors the fuel system, not crankcase pressure or protective shutdown.