WorksheetsReview phase 4
Total questions: 13
Worksheet time: 18mins
How is the AU protected during startup to avoid high temperature?
by a sequence computer who controls the fuel
by a computer that controls the air mass
due to a reduction in spark intensity
The out flow valves will open due to
Hi air pressure through automatic control
Low air pressure through automatic control
By a torque motor that drives the mechanism
Of the following, which faults will automatically shut down the APU?
HI oil temperature, low oil press, over speed. low fuel flow
HI oil temperature, low oil press, over speed. low speed, apu fire
HI oil temperature, low oil press, low speed. ambient tempersture
The main difference between engine and APU extinguisher systems is
The contents of the fire extinguisher bottle
the test, because the apu FWCU test requires protection to prevent self-discharge
The wiring is data buses
HOW THE SPRAG CLUTCH OF THE APU IS LUBRICATED?
By oil into its own sump
By the same APU oli circuit
by oil that is served through the filling plug
What precautions must be taken to perform the Engine anti ice test?
All persons around the engine must be alert due hi temperature
115AC must be available to do the test
An engeneer must turn the propeller until the test is over
What is required for the cockpit recirculation fan to start working?
the P/B must be on and FD airconditioning valve must be open
The P/B must be ON and one pack must be OFF
The P/B must be on and the engines must be running
Which of the following countries is not from Africa?
Mali, Costa de Marfil Tanzania, Santo Tome y Principe
Guinea, Angola ,Sierra Leona and Turkey, Gabon
Sudan , Mauricio , Eritrea, Suazilandia, Niger
What is the difference between heavy and light in the DE-icing system?
the rest time at the end of the sequence
the amount of air pressure if the ice is soft or hard
the sequence time to keep the boots inflated*/deflated
If you close a little bit the out flow valves
Differential pressure increase , the internal pressure decrease, the cabin altitude decrease
Differential pressure increase , the internal pressure increases,the cabin altitude decrease
Differential pressure decreases , the internal pressure increase, the cabin altitude increases
The following valves uses the close solenoids
PACK shutoff valve, and PRSOV
PACK shutoff valve, HP valve, and PRSOV
PACK shutoff valve, HP valve, The out flow Valves and PRSOV
What is the relationship between feathering the propeller above or below 10,000 feet with the pneumatic system?(packs normal)
There is relationship
above 10,000 feet it will be commanded to normal in the live engine and close below 10000
above 10,000 feet it will be commanded to economy in the live engine and close below 10000
What will happen if the APU detects fire during operation?
The APU will be commanded to shut down and after the timer expires, the extinguisher bottle will be discharged.
It remains ON until the operator takes the control
The APU will be commanded to shutdown and the operator will dischage the bottle
