GLA Systems Questions Flashcards
You are doing the pre-flight and you need to check the fire bottle, what is the PSI and temperature?
360 PSI at 70 Degrees F
When you engage the starter/ignition switch what gets activated with the (UP position)? What about Down position?
Starter
Standby pump
Exciter box
Down position:
Starter only
Kicks out all the fuel out of it
What do we want to see when starting the engine?
“Light, light, pressure”
Ignition light -ON
Fuel Pressure Low Annunciator Light - Extinguished
Oil Pressure - Increasing
When do we want to add fuel on engine start?
At minimum 12% N1, bring condition levers out of fuel cut-off
What are the reasons for a hot start?
Weak battery
Introduction of fuel too early
Parked downwind (reverse flow into engine)
Crack in combustion chamber
What are the reasons behind a hung start?
Weak battery
May have blocked or inoperative fuel nozzles or stuck flow divider valve
When does eng. Anti ice needs to be on?
- contaminated runway
- heavy rain
- all ground ops
- flying at night and flight free of visible moisture is not assured temps at and below 5 degrees C
- in visible moisture at and below 5 degrees C
What is required to be on for all flight operations?
Left and right Pitot heat
Stall warning heat
How is fuel taken to the collector tanks?
Cutout One way check valve Jet pumps Aux pumps XFER transfer pumps
How is the standby boost pump turned on?
Standby pump switch - on
Ignition and engine start switch - on
Cross transfer switch - on
What are the 3 fuel vents?
Heated ram vent NACA Scoop vent - that is naturally ice resistant Flush vent (looks like hole in the wing) - with flame arrestor
A Pressure valve prevents over pressurization of the fuel tank
Back up vent opens at 1.5 PSI
- externally dumped fuel through the heated ram vent
what 3 things could cause the aircraft not to pressurize?
- Bleeds off
- cabin controller not set properly
- squat switch malfunction
what are 3 common failures after takeoff with regards to pressurization?
- ) Rapid decompression towards max differential
- ) Lack of pressurization
- ) Cabin leak down which increases with the greater differential
what is dynamic braking? (regarding the flap system)
stops the flaps from rolling on the jackscrews after the flap has reached its desired position
What are some. Systems on the triple fed bus?
L/r fuel quantity L/r fuel pressure L/r oil temperature L/r oil pressure Stall warning
What are some systems on the triple fed avionics bus?
Comm 1, NAV 1, transponder 1, compass 1
What are some systems on the hot battery bus?
L/r firewall shutoff valves
Cargo compartment lights
L/r fire extinguisher
What are some systems on the right center bus?
Ice lights, taxi light, NAV light
What is the pressure switch for NO AUX XFR annunciator?
5 PSI
What is the holding speed?
160 Knots
What is max. Continuous ITT?
Too of green arc, bottom of yellow arc
What prevents the pressure vessel from exceeding the max differential pressure?
Poppet Valve
What is the max. Generator load for cross start?
50%
What is powered by the triple fed bus? (Name 3 systems)
- ) left and right oil temperature indicator
- ) stall warning
- ) left and right oil pressure indicator
What is powered on the hot battery bus and battery bus?
- ) Right Pitot Heat (battery bus)
- ) L and R fire extinguisher
- ) door entry lights
What is powered by the R Center Bus?
Taxi light, ice light, nav light
What is powered by the L Center Bus?
Landing gear motor, L manual prop deice, No. 1 Inverter Power
What is powered by the R Avionics Bus?
Compass 2, NAV 2, Transponder 2
What is powered by the L Avionics Bus?
Comm2, DME 1, ADF 1, Radar
What is powered by the R Generator Bus?
Anti-collision lights, Emergency exit lights, Recognition lights
What is powered by the L Generator Bus?
Flap motor, GPWS, TCAS
What is powered by the triple fed avionics bus?
NAV 1, Comm 1, Transponder 1, Compass 1
what “standard 3” things that need to be?
L Pitot heat, R pitot heat, stall warning
What kind of oil do we use?
BP or EXXON 2380
what moves when you move into reverse?
Blade angle, and fuel
What are the pneumatic components?
Hobbs, EVA tubing, Landing gear fill can, Pneumatic pressure gauge, Deice boots (pressure)
what are the vacuum side of the pneumatics?
De-ice boots (vacuum portion), Cabin pressure controller, Vacuum Pressure gauge, Vacuum regulator
What things could cause the cabin not to pressurize?
Cabin controller set improperly, bleeds off, squat switch malfunction
Explain the Takeoff Profile…
First Segment.. 35’ to gear retraction, positive climb at V1
Second Segment- gear retraction to 400’ AGL, climb gradient of 2% to 400’ AGL
Third Segment - 400’ AGL to Venr to Flap retraction
level flt/no climb
Fourth Segment - Flaps up to 1,500’ AGL
climb gradient of 1.2% to 1,500’ AGL
What are GCU (Generator Control Unit) functions?
Voltage regulation and contactor control Over voltage and over excitation control Reverse current protection Paralleling and load sharing Cross start and current limiting
