Q5 Piston - Carburettor Flashcards
When opening the throttle, which component prevents flat spots?
Select one:
1.The Economiser
2.Acceleration Pump
3.Pressure Balance Duct
4.Idle system
2.Acceleration Pump
The Pressure Balance duct;
Select one:
1.Prevents the mixture from richening with increased airspeed
2.Keeps the fuel level in the chamber fixed.
3.Ensures constant mixture if intake pressure changes.
4.Ensures mixture stays constant when opening the throttle
3.Ensures constant mixture if intake pressure changes.
Which component ensures the carburettor delivers fuel at very low RPM
Select one:
1.Main Jet
2.Power Jet
3.Idle Jet System
4.Venturi
3.Idle Jet System
What is the purpose of the Electric Fuel Pump in a Carburated Engine?
a.It is used on the ground prior to starting the engine, and used in flight if required.
b.It is used to force fuel into the main jet for starting.
c.It is used during starting and running of the engine in flight and on the ground.
d.An electric fuel pump is not needed as there is an EDP
a.It is used on the ground prior to starting the engine, and used in flight if required.
Without the required modification, what would happen to your fuel mixture as you accelerated down the runway at a fixed throttle and mixture control setting?
a.It would be unaffected because the Power Enrichment system is in control.
b.It would weaken (Lean Off)
c.It would be unaffected thanks to the diffuser.
d.It would Richen
b.It would weaken (Lean Off)
Carb Heat Air is…
Select one:
1.Hot and Unfiltered
2.Filtered but no particular temperature
3.Hot and Filtered
4.Unfiltered and heated when necessary
1.Hot and Unfiltered
What controls the amount of fuel and air going to the cylinder?
Select one:
1.Main Jet
2.Economiser
3.Pressure Balance duct
4.Throttle Valve
4.Throttle Valve
Which part of the carburettor (engine running) ensures that fuel flows continuously to the main jet?
Select one:
1.Diffuser
2.Power Jet
3.Accelerator Pump
4.Venturi
4.Venturi
If the Idle Jet became blocked after takeoff, when would you become aware of this?
a.The next time you reduced the RPM low enough to require the idle jet (slow running) system
b.As soon as you reduced the engine power from Take Off to Cruise Power
c.It would become immediately apparent as a large reduction in power.
d.You wouldn’t notice until the next time you attempt to start the engine on the ground.
a.The next time you reduced the RPM low enough to require the idle jet (slow running) system
In flight if the EDP failed you would notice the problem [ ]. You would know the problem was a failed EDP when you next started the engine and [ ].
[After a short period of time] [switched off the Electric Pump]
