A gas turbine engine's main lube oil system...

Question 1 / 270705eccef9fbacbc34ba4d46b99

Question 1 of 270705eccef9fbacbc34ba4d46b99

A gas turbine engine's main lube oil system pump check valve serves to maintain system prime and perform what other function?

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Question 1 of 27070

A gas turbine engine's main lube oil system pump check valve serves to maintain system prime and perform what other function?

🔍 Key Concepts

• Function of a check valve in a fluid system • What it means to maintain system prime in a lube oil system • Flow direction when a pump is secured or not running

💭 Think About

• Ask yourself: what does a check valve physically allow and what does it block in a pipeline? • If the pump is stopped, what undesired movement of oil could happen without a check valve? • Which option actually describes a typical check valve function in any piping system, not just on gas turbines?

✅ Before You Answer

• Verify which choice describes directional control of flow rather than pressure increase or oil return routing. • Confirm that maintaining prime is related to keeping the pump and suction line full, not raising pressure. • Eliminate any options that describe functions normally handled by relief valves or return/sump drains, not by check valves.

Question 1 of 27070

A gas turbine engine's main lube oil system pump check valve serves to maintain system prime and perform what other function?

To return oil to the main reduction gear sump

To increase system pressure

To prevent reverse flow of oil through a secured pump

None of the above