Podcast
Questions and Answers
What is the purpose of the auxiliary lubrication oil supply?
What is the purpose of the auxiliary lubrication oil supply?
- To cool the gas turbine bearings (correct)
- To clean the compressor blading
- To control the temperature of the gas turbine
- To adjust the fuel flow to the combustor
What is the purpose of the anti-icing system in gas turbines operating in cold climates?
What is the purpose of the anti-icing system in gas turbines operating in cold climates?
- To reintroduce hot air into the compressor inlet section (correct)
- To clean the compressor blading
- To protect against fire hazards
- To increase the power output and efficiency
What type of pumps are generally employed for liquid fuel utilized for a gas turbine?
What type of pumps are generally employed for liquid fuel utilized for a gas turbine?
- Reciprocating pumps
- Diaphragm pumps
- Volumetric pumps (correct)
- Centrifugal pumps
What happens during a major overhaul of a gas turbine?
What happens during a major overhaul of a gas turbine?
What is observed or checked for aging or maintenance in gas turbines?
What is observed or checked for aging or maintenance in gas turbines?
How does an increase in air temperature affect air density?
How does an increase in air temperature affect air density?
What effect does high barometric pressure have on air density?
What effect does high barometric pressure have on air density?
Why do changes in atmospheric pressure and temperature dramatically affect the output of a gas turbine?
Why do changes in atmospheric pressure and temperature dramatically affect the output of a gas turbine?
What are the factors considered when programming fuel admission and ignition sequences during startup?
What are the factors considered when programming fuel admission and ignition sequences during startup?
Which type of fuel systems are mentioned in the text?
Which type of fuel systems are mentioned in the text?
What is the purpose of the fuel shutoff valve in a gas turbine system?
What is the purpose of the fuel shutoff valve in a gas turbine system?
In a fully automatic gas turbine startup, at what point does the ignition turn off and the starter motor disengage?
In a fully automatic gas turbine startup, at what point does the ignition turn off and the starter motor disengage?
Which device is used to bring the gas turbine to rest if the turbine speed exceeds a pre-determined RPM?
Which device is used to bring the gas turbine to rest if the turbine speed exceeds a pre-determined RPM?
What does a high stator temperature in a gas turbine generator indicate?
What does a high stator temperature in a gas turbine generator indicate?
Which system is used to start gas turbines and requires periods of cranking, purging, firing, acceleration, and load acceptance?
Which system is used to start gas turbines and requires periods of cranking, purging, firing, acceleration, and load acceptance?
