Fuel Flashcards
What assist the collector tanks in maintaining a full level of fuel?
Scavenger ejectors
How many fuel tanks does the challenger 350 Aircraft have?
2 tanks
Each divided into 3 sections
Main, collector and surge tanks
How many water sumps are installed?
Six
How many fuel pumps are installed?
Nine
2 engine driven pumps 2 electrical boost pumps 2 main ejector pumps 2 scavenge pumps One APU mechanical pump
How is the fuel heated?
Fuel heater/oil cooler. FHOC
Engine oil cooler/ fuel heat exchanger
Does the fuel transfer Valve need to be open to refuel?
No
What is the minimum fuel quantity for a go around?
509 lbs per side
What are the limitations on fuel transfer?
No transfer during takeoff
What are the pressure limits for the SPPR?
-8 PSI TO 55 PSI
What are the fuel temperature limitations?
50 degrees C max bulk fuel temp
With 45 C or more ; min 2800 lb with < 1000lb per side
Do not operate engines for more than 30 min
How much fuel can be added using SPPR?
14,150lbs
How much fuel can be added using over wing refueling?
13,000 lbs
From where does the refuelling panel obtain power?
Right BATT bus
What power source is required to use SPPR?
Right BATT bus
How many moving parts are in a jet pump?
None
When is fuel transfer prohibited?
On takeoff
What is the minimum bulk fuel temperature using Jet A?
-30 C
Why can engines only operate for 30 minutes with less than 1000 pounds of fuel per side?
Overheating of hydraulic fluid
During which phase of flight must the fuel transfer push button annunciator be selected closed?
Takeoff
Assuming both engine run switch is off, both fuel pumps in the automatic mode, and the APU knob selected to run, what EICAS message should appear?
Cyan R FUEL PUMP ON (A)
What is the maximum negative pressure when defueling?
-8 PSI
What is the maximum zero fuel weight?
28,200lbs
In order to transfer fuel, the transfer switch must be selected to______ and one of the pumps selected to______.
Open
On
If the aircraft is not in level flight, what unit signals the fuel computer with an accurate fuel reading?
IRS
Concerning the fuel venting system, from which area does air from the right wing NACA scoop originate?
Left main tank and right surge tank
What prevents fuel from travelling outboard during low wing maneuvers?
Flapper valves
What is the maximum operation altitude for JP 4 or JET B?
16000 ft
