Fuel system indication and warning
In Electrical Volumetric Fuel Quantity Indication, what does the sender use to determine an indication position
A DC current
A variable resister
A float.
What continuously monitor the fuel system's function.
Indicators suchas tank quantity gauges, fuel pressure gauges and warning signals
Where are the fuel tank access panels located
Bottom of the wing between the wing ribs
Where is the main fuel strainer located
in the lowest point in the fuel system to collect foreign particles
Can the jettison system be stopped manually
yes by the crew
What is The simplest direct-reading fuel quantity indicator
sight glass.
In some applications, the booster pumps in some tanks are fitted with sequence valves to ensure what occurs?
fuel from a certain tank is used before that in another tank
What are auxiliary tanks used for
increase the range of the aircraft by supplying more useable fuel
What is the function of the boost pump
maintain pressure in the fuel line to the engine-driven pump for starting and to prevent a vapour lock forming in the lines
What does a ram air intake do in a fuel vent system?
maintains a slight positive pressure in the vent system, thus decreasing fuel vaporisation and maintaining a positive supply of fuel to the boost pumps.
Capacitance type fuel probes are connected in parallel to ensure:
that indications remain the sameregardless of aircraft attitude
Transfer valves allow fuel to be transferred from?
outer to inner cells
Permanent Aux tanks are fitted to?
the centre wing structure, horizontal stabilisers, wings, wing tips
Jet pumps, or ejector pumps, are used where
electrically driven fuel pumps are not essential
What is fitted between the ram air ports and the vent surge tank that keeps flames from entering the tank.
a flame arrestor that is made of a fine-meshed screen
Name 5 (five) parameters of the fuel system that a pilot would monitor during flight
Fuel quantity, Fuel Temperature, Booster pump pressure, Cross Feed valve position, Shut off valve position, Filter blockage
The selector valve does not have a BOTH position because the pump would
pull air froman empty tank rather than pulling fuel from a full tank
Integral tanks are sealed with
Space age sealants
Check valves provide flow in only one direction to
ensure fuel flows in the correct direction
Where is the sump drain valve located
at the lowest point of each fuel tank attached to the lower wing skin.
why is a fuel measuring stick used and what is it used in conjunction with
to indicate fuel level without power and is used with an aircraft atitude indication
The fuel system must be reasonably free from any tendency to
Vapour lock
When fitted rigid tanks must
be supported by the airframe and held in place with some sort of padded straparrangement to prevent movement during flight
Pressure switches are installed to monitor the
output pressure of each fuel pump
What allows the drain valve to be removed and replaced without de-fueling the whole tank?
a check valve