Question 103Gas Turbine - Assistant Engineer70% to pass
A gas turbine engine’s main lube oil system pump check valve serves to maintain system prime and perform what other function?
AI Explanation
The correct answer is B) To prevent reverse flow of oil through a secured pump.
The main lube oil system pump check valve in a gas turbine engine serves to maintain system prime and prevent reverse flow of oil through the pump when it is not running. This ensures that the pump is ready to provide lubrication immediately when the engine is started, and prevents oil from draining back out of the system when the pump is shut off. The check valve does not increase system pressure or return oil to the reduction gear sump - those are separate functions handled by other components in the lubrication system. Therefore, option B is the correct answer that describes the primary purpose of the pump check valve.
Related Questions
#101 A gas turbine engine in which exhaust gas heat energy is added to the compressor air charge before entering the combustor, is classified as which of the following? #102 A gas turbine engine in which exhaust gas heat energy is added to the air charge between the compressor and combustion chamber is classified as which of the following? #104 How is the lube oil supplied to each bearing in a gas turbine engine controlled? #105 The electrostatic vent fog precipitator removes oil mist from which of the following areas? #106 When the main reduction gear lube oil system is secured, which of the following components maintains the air within the casing at less than 35 percent relative humidity?