Prog 1 Excel Tester.xlsm - Fuel System Flashcards
1
Q
How can you close the Fuel tank emerg shutoff valve
A
Machanically via the E-handle
2
Q
Fueling rate - 2 Hoses
A
600 US GAL per min (4000LBS/min)
3
Q
During fueling operations, green light on panel:
A
Fueling transfer valves closed
4
Q
XFeed amber light illuminates steadily to indicate:
A
Valve not in selected position
5
Q
Fuel for the APU usually supplied by:
A
Normally 2, but any (wing?) tank
6
Q
Max Fuel Diff b/w 1 & 4: TO / Flight / Land
A
TO-1400, Flight and Landing - 4389
7
Q
Max Fuel Diff b/w 2 & 3 TO / Flight / Land
A
TO-5025, Flight-NIL, Landing - NIL
8
Q
Max Fuel Diff If using JP4 b/w 2 & 3:
A
10 860
9
Q
During refueling, max px?
A
45 - 55 PSI
10
Q
Reset advisory light on the fuel management panel:
A
Indicates that the refueling panel has control
11
Q
Tank 5 over PX gauge is connected to what section
A
Center section
12
Q
E-handle closes the emergency fuel shutoff valve :
A
Closes both tank and crossfeed
13
Q
What does the Dump System use During a fuel Dump?
A
1x Dump pump and 2x transfer pumps, at a rate of 1000lbs/min
14
Q
Total water drain valves:
A
7 - 1 on each wing tank, 2 on the centre-cell, 1 on the fuselage cell
15
Q
Tank 1 & 4 Capacity
A
10,760 10-76 Fuel at the tips (120.6lbs Unusable)
16
Q
Tanks 2 & 3 Capacity
A
11,195 closest to the hive (150.75 lbs Unusable)
17
Q
Tank 5 Capacity
A
17,728 - holds the most weight (103.85lbs Unusable)
18
Q
Total Tanks Capacity
A
61,640lbs 61-640 makes you sporty
19
Q
Standard Fuels
A
JP-8 (F-34); JP-8 +100 (F-37)
20
Q
Acceptable Fuel
A
F-40 Civilian and Military Jet Fuel
21
Q
Emergency Fuels
A
F-12 ; F-18; F-22
22
Q
Fueling rate - 1 Hose
A
300 US gal/min (2000lbs/min)
23
Q
__________, allow fuel into each tank and _______________ when tank is full via ____________
A
fueling valves allow fuel into each tank and automatically close when tank is full via float valves (toilet bowl pilot valves)
24
Q
Defueling carried out at _________________ at _____ PSI
A
Defueling carried out at pressure adapters at 5.5 PSI
25
(FCU) Provides a means of varying _______________ in order to permit a selection of power that is co-ordinated with _____________________ and ___________________.
Provides a means of varying fuel flow in order to permit a selection of power that is co-ordinated with propeller blade angle and engine speed.
26
(FCU) Compensates for changes in ____________ as sensed from variations in __________________ and ______________.
Compensates for changes in air density as sensed from variations in compressor inlet air temperature and pressure.
27
(FCU) In conjunction with the _____________, it Regulates ________________________ during acceleration to prevent ___________________
(FCU) In conjunction with the TD system, it Regulates rate of fuel metering during acceleration to prevent excessive TIT
28
(FCU) Controls the rate of ____________________ during deceleration to prevent ___________________.
Controls the rate of decrease of fuel metering during deceleration to prevent flame out.
29
(FCU) Controls ____________ in the ground range and in the flight range beyond the range of _________________________________.
Controls RPM in the ground range and in the flight range beyond the range of propeller governor operation.
30
(FCU) Provides __________ protection through the fuel governor portion of the control by ______________________.
Provides overspeed protection through the fuel governor portion of the control by reducing fuel flow.
31
(FCU) Provides a starting fuel flow schedule which, in conjunction with the_________________________________, prevents __________________ and _____________________.
Provides a starting fuel flow schedule which, in conjunction with the temperature datum valve, prevents overtemperature and compressor surge.
32
(FCU) Provides a means of shutting off fuel to the power unit ___________________ and ___________________.
Provides a means of shutting off fuel to the power unit electrically and mechanically.
33
(FCU) Provides a fuel governor reset solenoid that allows changing the ground range RPM from NORMAL (______ %) to LOW (______%).
Provides a fuel governor reset solenoid that allows changing the ground range RPM from NORMAL (97 %) to LOW (72.4 %).
34
LOW Engine RPM Range
71.0% - 73.8%
35
Normal Engine RPM Range
96.3% - 99.1%
36
FCU provides ______% more fuel than the engine requires
FCU provides 20% more fuel than the engine requires
37
Primary Fuel Pump is a ________________________ type, and is _____% Larger than the secondary pump
Primary Fuel Pump is a High Pressure Gear- type, and is 10% Larger than the secondary pump
38
Secondary Fuel Pump is a _________________________ type. It supplies fuel to either the ___________________ or the _______________ depending on its mode of operaion
Secondary Fuel Pump is a High pressure gear-type. It supplies fuel to either the Primary Pump or the High pressure filter, depending on its mode of operaion
39
Max Differential b/w dipped and Fuel Management Panel
500Lbs
40
Max Differenetial between Hydro-static and Fuel Management Panel
1200Lbs
41
Fuel Dump Rate: Dump Pump __________lbs/_____ ; Trasnfer Pump __________lbs/______
Fuel Dump Rate: Dump Pump 650 lbs/min ; Trasnfer Pump 175lbs/min.
42
Fwd Trasnfer pump & Fuel Dump Pump Are both on ____________________________(electrical). So if this bus fails, Fuel Dump will be limited to the Aft Transfer pump at ________lbs/____ and take a very long time
Fwd Trasnfer pump & Fuel Dump Pump Are both on Main AC Bus A So if this bus fails, Fuel Dump will be limited to the Transfer pump at 175lbs/min and take a very long time
43
Minimum fuel of ___________ should be reached with ___________ in the outboard tanks and ___________ in the inboard tanks. This will prevent ________________and provide for ____________________ requirements.
Minimum fuel of 3000 lb should be reached with 500 lb in the outboard tanks and 1000 lb in the inboard tanks. This will prevent fuel starvation and provide for hydraulic system cooling requirements.
44
Pump starvation may occur when the fuel level in Tank No.5 is below the level of the cell interconnect (aprox __________ lbs) and the fuel from the ____________
is emptied faster than the scavenge element can replace it from the _____________________.
Pump starvation may occur when the fuel level in Tank No.5 is below the level of the cell interconnect (approximately 3000 pounds) and the fuel from the fuselage cell is emptied faster than the scavenge element can replace it from the centre-section cell.
45
The scavenge element transfers fuel from the bottom of the ______________ into the ___________________ at the rate of_____________ pounds per ___________ per pump.
The scavenge element transfers fuel from the bottom of the centre-section cell into the fuselage cell at the rate of 2500 pounds per hour per pump.
46
The transfer element pumps fuel through the fuelling/transfer manifold, via a check valve at a rate of ______________ pounds per ___________ per pump.
The transfer element pumps fuel through the fuelling/transfer manifold, via a check valve, at a rate of 5000 pounds per hour per pump.
47
______ pounds of JP-8 of unusable fuel is contained in the pipes and fittings of the fuel system.
127.3 pounds of JP-8 of unusable fuel is contained in the pipes and fittings of the fuel system.
48
A _______________________ is provided to relieve excessive transfer pump pressure back into the fuselage cell. The valve also limits transfer pump output pressure to approximately ______ PSI to prevent overpressurization of the wing tanks.
A bypass pressure relief valve is provided to relieve excessive transfer pump pressure back into the fuselage cell. The valve also limits transfer pump output pressure to approximately 13 PSI to prevent overpressurization of the wing tanks.
49
the surge box consists of a _________________ and a _______________.
the surge box and consists of a scavenge element and a boost element.
50
The scavenge element discharges fuel at a rate of _________ pounds per ________ from a low point in the tank into the _________________. The surge box is kept full to ___________________ even in prolonged nose-down attitudes
The scavenge element discharges fuel at a rate of 2000 pounds per hour from a low point in the tank into the surge box. The surge box is kept full to prevent fuel starvation even in prolonged nose-down attitudes
51
The boost element pumps fuel from the surge box at a pressure of ____ to ____ PSI to the engine-driven pump via a ___________ and an ___________________ located in the fuel manifold and a fuel heater and strainer
The boost element pumps fuel from the surge box at a pressure of 15 to 30 PSI to the engine-driven pump via a main tank shutoff valve and an emergency shutoff valve located in the fuel manifold and a fuel heater and strainer
52
The Tank vent system pressure relief valves open at a minimum pressure of _________ PSI and the
suction relief valve opens at a minimum pressure of _____PSI.
The Tank vent system pressure relief valves open at a minimum pressure of 1.2 (±0.1) PSI and the suction relief valve opens at a minimum pressure of -0.1 PSI.
53
In Tank No.5 Fuselage Cell, there are ____ transfer pumps ( _____ & _____ ). Each can pump at a rate of ____lbs/____, for a cumulative _____lbs/_____ should the dump pump fail
In Tank No.5 Fuselage Cell, there are 2x transfer pumps ( FWD & AFT ). Each can pump at a rate of 175 lbs/min , for a cumulative 300 lbs/min should the dump pump fail.
54
If the differential across the filters exceeds ___ PSI, the switch completes a circuit to the yellow FILTER caution light on the FUEL MANAGEMENT panel.
If the differential across the filters exceeds 7.5 psi, the switch completes a circuit to the yellow FILTER caution light on the FUEL MANAGEMENT panel.
55
The enrichment (primer) valve closes:
when fuel pressure in the manifold reaches 50 PSI;
56
Fuel is maintained at (....) C to prevent icing in the fuel strainer. (heated by hot engine oil)
4.5
57
Red light on TIT indicator will illuminate at:
1080 +/- 2 C TIT
58
How many engine driven fuel pumps (or pump) run from the accessory assembly?
Three - centrifugal, primary, secondary
59
What indication will you get if the high pressure fuel filter becomes clogged?
None, the fuel filter bypass indicator will pop.
60
What will cause the yellow PRESS LOW caution light to illuminate on the FUEL MANAGEMENT panel?
when the pump pressure drops below 3 PSI or when the differential pressure across the corresponding engine-driven boost pump drops below 19 PSI
61
How would you know that the secondary fuel pump had failed during the engine start?
No PRIMARY FUEL PUMP FAILURE LT between 16 & 65% rpm
62
How would you know that the primary fuel pump had failed during the engine start?
PRIMARY FUEL PUMP FAILURE LT on above 65% rpm
63
The capacity of the primary pump is _____ % greater than that of the secondary pump.
10%
64
The manifold drain valve located at the bottom of the fuel manifold, is spring-loaded open and drains the fuel nozzle manifold when the pressure drops below _____ to _____ psi.
The manifold drain valve located at the bottom of the fuel manifold, is spring-loaded open and drains the fuel nozzle manifold when the pressure drops below 8 to 10 psi.
65
What power the valve open after 16% RPM
Speed Sensitive Control
66
Where is the tank 5 sight gauge located?
center tank
67
What is the max. difference between dipped quantity & management panel gauges?
500 lbs.
68
Depressing the fuel gauge test button …
tests operability of gauges & totalizer, not accuracy
69
The purpose of the fuel transfer system is ...
transfer fuel from tank #5 to wing tanks
70
Where do the transfer pumps scavenge fuel from?
center tank
71
What powers #1 & #3 boost pumps?
Bus A
72
The emergency shutoff valve is controlled by ...
the “E” handle, mechanically
73
Where are the fuel boost pumps located?
surge box
74
What is the boost pump operating pressure?
15-30 psi
75
What powers #2 & #4 boost pumps?
Bus B
76
Dual float operated pressure relief valves are located ...
tanks 1 & 4
77
Tank 5 consists of ...
fuselage and center sections
78
Which tank can fuel be dumped from?
tank 5
79
How are the fuel tanks normally refueled?
pressure refueled under stbd wing
80
What is the normal fuel dump rate?
1000 lbs/min
81
Where is the dump chute located?
port inboard wing
82
What pump(s) operate during fuel dumping?
dump pump
fwd transfer pump
aft transfer pump
83
What is the scavenge rate of the transfer pumps?
2500 lbs/hr
84
The transfer pump PRESS LOW light illuminates at ...
Less than 3 psi
85
If the transfer valve fails to close in the #2 tank the excess fuel would ...
recirculate into tank 5 center section
86
Fuel quantity is determined by ...
capacitance type probes
87
Total fuel capacity using JP-8 is ...
61,640 lbs
88
A negative pressure of ____ lbs is required to defuel.
5.5 psi
89
The tank 5 interconnect will allow free flow between tanks when fuel level is above...
3000 lbs
