Aircraft Engine Operation Limits Quiz

What is the maximum EGT limit for ground starts?

• 1900°F (1038°C)

• 1387°F (753°C)

• 1918°F (1048°C)

• 1621°F (883°C)

What is the minimum oil pressure at minimum ground idle speed?

• 15 minutes

• 43 psia (296 kPa)

• 13 psia (90 kPa)

• 17.4 psi (120.0 kPa)

What is the maximum supply oil temperature limit for continuous operation?

• 284°F (140°C)

• 311°F (155°C)

• 15 minutes

• -40°F (-40°C)

Which service bulletin gives the specifications for the fuel approved for use in the LEAP 1B engine?

• 73-0001

• 71-00-00-212-001-G00

• 71-00-00-200-810-G00

• 79-0001

What is the maximum N1 rotor speed?

• 40%

• 4.0 units (6 MILS DA)

• 20171 RPM (117.5%)

• 4586 RPM (104.3%)

What is the advisory level for maximum N2 vibration?

• 1621°F (883°C)

• 1918°F (1048°C)

• 1387°F (753°C)

• 4.0 units (6 MILS DA)

How long can the inlet cowl anti-icing system be used when the temperature is at or less than 65°F (18°C)?

• 5 minutes

• 30 seconds

• 15 minutes

• No time limit

What is the maximum N1 when the thrust reverser is extended?

• 4586 RPM (104.3%)

• 40%

• 1387°F (753°C)

• 1918°F (1048°C)

When is engine motoring with the engine cowling open permitted?

• During cruise operation

• During an idle leak check

• During takeoff

• During normal operation

What is the purpose of the procedure for starting the engine after an emergency shutdown?

• To increase the speed to a higher power

• To keep the damage to the tip seals at a minimum

• To cool the engine for 5 minutes

• To engage the starter again