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Questions and Answers
Which system provides a constant supply of filtered oil to various components of the engine?
Which system provides a constant supply of filtered oil to various components of the engine?
- Cooling system
- Pressure system (correct)
- Scavenge system
- Breather system
When should the oil level be checked for the most accurate results?
When should the oil level be checked for the most accurate results?
- 5 minutes after shutdown
- 15 to 20 minutes after shutdown (correct)
- Immediately after shutdown
- 30 minutes after shutdown
What is the normal oil level range in the tank?
What is the normal oil level range in the tank?
- MIN to ADD
- ADD to MAX HOT (correct)
- MIN to MAX HOT
- MIN to MAX COLD
Which system is NOT a component of the oil system?
Which system is NOT a component of the oil system?
How often should the oil level be serviced after engine shutdown?
How often should the oil level be serviced after engine shutdown?
What is the capacity of the oil system?
What is the capacity of the oil system?
Which component of the engine is NOT supplied with oil by the oil system?
Which component of the engine is NOT supplied with oil by the oil system?
What is the correct method for checking the oil level in the tank?
What is the correct method for checking the oil level in the tank?
What is the consequence of not servicing the engine oil level properly?
What is the consequence of not servicing the engine oil level properly?
When should the oil level be checked for the most accurate results?
When should the oil level be checked for the most accurate results?
Which warning light illuminates if the oil pressure drops to between 40 and 90 psi, for 10 seconds, above idle power?
Which warning light illuminates if the oil pressure drops to between 40 and 90 psi, for 10 seconds, above idle power?
If the oil pressure is less than 15 psi at idle power, what happens to the amber OIL PX caution?
If the oil pressure is less than 15 psi at idle power, what happens to the amber OIL PX caution?
What does the SCU logic prevent during engine ground start?
What does the SCU logic prevent during engine ground start?
When does the amber OIL PX caution illuminate while maneuvering?
When does the amber OIL PX caution illuminate while maneuvering?
What does the illumination of both red and amber OIL PX caution/warning indicate?
What does the illumination of both red and amber OIL PX caution/warning indicate?
What is the range of oil pressure that triggers the amber OIL PX caution at idle power?
What is the range of oil pressure that triggers the amber OIL PX caution at idle power?
What is the range of oil pressure that triggers the red OIL PX warning above idle power?
What is the range of oil pressure that triggers the red OIL PX warning above idle power?
What does a momentary illumination of the amber OIL PX caution while maneuvering indicate?
What does a momentary illumination of the amber OIL PX caution while maneuvering indicate?
What happens to the amber OIL PX caution if the oil pressure remains between 15 and 40 psi at idle power for 5 seconds or more?
What happens to the amber OIL PX caution if the oil pressure remains between 15 and 40 psi at idle power for 5 seconds or more?
How is power provided for the oil pressure transducer?
How is power provided for the oil pressure transducer?
Which system incorporates two oil pickup elements to ensure oil pressure is maintained during inverted flight?
Which system incorporates two oil pickup elements to ensure oil pressure is maintained during inverted flight?
What is the purpose of the scavenging system in the oil system?
What is the purpose of the scavenging system in the oil system?
Where is the oil cooler located in the aircraft?
Where is the oil cooler located in the aircraft?
How is the oil tank vented in the aircraft?
How is the oil tank vented in the aircraft?
Why may the engine oil pressure indicator display oil pressures up to 4 psi with the engine shut down?
Why may the engine oil pressure indicator display oil pressures up to 4 psi with the engine shut down?
What happens if the main oil filter becomes clogged in the oil system?
What happens if the main oil filter becomes clogged in the oil system?
Where are the oil pressure and temperature sensed in the oil system?
Where are the oil pressure and temperature sensed in the oil system?
What is the purpose of the signal conditioning unit (SCU) computer in the oil system?
What is the purpose of the signal conditioning unit (SCU) computer in the oil system?
At what oil pressure does the SCU activate the red OIL PX warning during idle power?
At what oil pressure does the SCU activate the red OIL PX warning during idle power?
What is the purpose of the engine data manager (EDM) in the oil system?
What is the purpose of the engine data manager (EDM) in the oil system?
Which warning light illuminates if the oil pressure is between 15 and 40 psi at idle power?
Which warning light illuminates if the oil pressure is between 15 and 40 psi at idle power?
What happens if the oil pressure drops to between 40 and 90 psi, for 10 seconds, above idle power?
What happens if the oil pressure drops to between 40 and 90 psi, for 10 seconds, above idle power?
If the oil pressure is less than 15 psi at idle power, what happens to the amber OIL PX caution?
If the oil pressure is less than 15 psi at idle power, what happens to the amber OIL PX caution?
What does a momentary illumination of the amber OIL PX caution while maneuvering indicate?
What does a momentary illumination of the amber OIL PX caution while maneuvering indicate?
What does the illumination of both red and amber OIL PX caution/warning indicate?
What does the illumination of both red and amber OIL PX caution/warning indicate?
What is the purpose of the signal conditioning unit (SCU) computer in the oil system?
What is the purpose of the signal conditioning unit (SCU) computer in the oil system?
What is the range of oil pressure that triggers the red OIL PX warning above idle power?
What is the range of oil pressure that triggers the red OIL PX warning above idle power?
When should the oil level be checked for the most accurate results?
When should the oil level be checked for the most accurate results?
Where are the oil pressure and temperature sensed in the oil system?
Where are the oil pressure and temperature sensed in the oil system?
How is power provided for the oil pressure transducer?
How is power provided for the oil pressure transducer?
Which two elements make up the pressure system in the oil system?
Which two elements make up the pressure system in the oil system?
What is the purpose of the scavenging system in the oil system?
What is the purpose of the scavenging system in the oil system?
Where is the oil cooler located in the aircraft?
Where is the oil cooler located in the aircraft?
How is the oil tank vented in the aircraft?
How is the oil tank vented in the aircraft?
What triggers the red OIL PX warning in the engine indication and crew alerting system (EICAS) above idle power?
What triggers the red OIL PX warning in the engine indication and crew alerting system (EICAS) above idle power?
What happens if the main oil filter becomes clogged in the oil system?
What happens if the main oil filter becomes clogged in the oil system?
Where are the oil pressure and temperature sensed in the oil system?
Where are the oil pressure and temperature sensed in the oil system?
What is the purpose of the signal conditioning unit (SCU) computer in the oil system?
What is the purpose of the signal conditioning unit (SCU) computer in the oil system?
What is the purpose of the engine data manager (EDM) in the oil system?
What is the purpose of the engine data manager (EDM) in the oil system?
What range of oil pressure triggers the amber OIL PX caution at idle power?
What range of oil pressure triggers the amber OIL PX caution at idle power?
Which component of the engine drives the propeller operating speed of 2000 RPM?
Which component of the engine drives the propeller operating speed of 2000 RPM?
What is the measure of the angle between the plane of rotation of the propeller and the chord line of the blade when the propeller blades are aligned nearly straight into the wind?
What is the measure of the angle between the plane of rotation of the propeller and the chord line of the blade when the propeller blades are aligned nearly straight into the wind?
At what throttle settings will the propeller blades be at low pitch?
At what throttle settings will the propeller blades be at low pitch?
What is the approximate angle of the propeller blade from the reference plane when it is in low pitch?
What is the approximate angle of the propeller blade from the reference plane when it is in low pitch?
What is the purpose of the engine power management unit (PMU) and the propeller interface unit (PIU)?
What is the purpose of the engine power management unit (PMU) and the propeller interface unit (PIU)?
What is the approximate torque produced by the reduction gearbox when the engine is producing 100% indicated torque at the prop shaft?
What is the approximate torque produced by the reduction gearbox when the engine is producing 100% indicated torque at the prop shaft?
What is the approximate thrust produced at sea level, zero airspeed when the engine is producing 100% indicated torque?
What is the approximate thrust produced at sea level, zero airspeed when the engine is producing 100% indicated torque?
What is the purpose of the propeller system in the aircraft?
What is the purpose of the propeller system in the aircraft?
What is the range of oil pressure that triggers the red OIL PX warning above idle power?
What is the range of oil pressure that triggers the red OIL PX warning above idle power?
What is the capacity of the oil system in the aircraft?
What is the capacity of the oil system in the aircraft?
Which component is responsible for reducing the power turbine output shaft speed from over 30,000 RPM to the propeller operating speed of 2000 RPM?
Which component is responsible for reducing the power turbine output shaft speed from over 30,000 RPM to the propeller operating speed of 2000 RPM?
What is the purpose of the chip detector in the reduction gearbox (RGB)?
What is the purpose of the chip detector in the reduction gearbox (RGB)?
What is the role of the propeller system in the aircraft?
What is the role of the propeller system in the aircraft?
What is the maximum torque available from the engine at sea level on a standard day?
What is the maximum torque available from the engine at sea level on a standard day?
Which component is responsible for automatically controlling the propeller blade angle and propeller speed?
Which component is responsible for automatically controlling the propeller blade angle and propeller speed?
What is the purpose of the permanent magnet alternator (PMA) in the aircraft?
What is the purpose of the permanent magnet alternator (PMA) in the aircraft?
What is the role of the air conditioning compressor in the aircraft?
What is the role of the air conditioning compressor in the aircraft?
How is the engine power output measured in the aircraft?
How is the engine power output measured in the aircraft?
What is the purpose of the torque probe in the aircraft?
What is the purpose of the torque probe in the aircraft?
What is the role of the power turbine in the aircraft engine?
What is the role of the power turbine in the aircraft engine?
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