Aircraft Fuels
Aircraft fuel lines
Aircraft fuel pumps
Fuel indication
Mr. E's "MIX-UP"
100

The color of 100LL is?

JUST LIKE A SMURF!!! 

BLUE!!!

100

Where is the main fuel strainer located  in the aircraft fuel system?

At the lowest point in the fuel system

100

During what period does the fuel pump bypass valve open and remain open?

When the boost pump pressure is greater than the fuel pump pressure

100

The probe of a capacitance-type fuel lever gauge is essentially a 

A capacitor with fuel and air acting as a dielectric. 

100

What is the dielectric (nonconducting material) in a capacitance-type fuel quantity indicating system?

Outer shell of the capacitor.

200

How are aviation fuels, which possess greater anti-knock qualities than 100 octane classified?

By performance numbers

200

Fuel system components must be bonded and grounded in order to?

Drain off static charges

200

Which type of pump is commonly used as a fuel pump on reciprocating engines?

Vane

200

An electrical type fuel quantity indicating system consists of an indicator in the flight compartment and a float

In the tank that moves a connecting arm to the wiper on a variable resistor in the tank

200

Fuel pressure produced by the engine-driven fuel pump is adjusted by the

Relief valve adjusting screw

300

Why is ethylene dibromide added to aviation gasoline?

To scavenge lead oxide from the cylinder combustion chamber.

300

Fuel lines are kept away from sources of heat and sharp bends and steep rises are avoided to reduce the possibility of?

Vapor Lock

300

The fuel pump relief valve directs excess fuel to the?

Inlet side of the pump

300

One advantage of electrical and electronic fuel quantity indicating systems is that the indicator?

can be located any distance from the tank(s).

300

A fuel that does not vaporize readily enough can cause?

Hard Starting

400

A fuel that vaporizes too readily may cause?

Vapor Lock

400

FAA regulations require the fuel flow rate for gravity systems (main and reserve) to be?

150% of the takeoff fuel consumption of the engine 

400

When an electric primer is used, fuel pressure is built up by the?

Internal pump in the primer solenoid 

400

A capacitance-type fuel quantity indicating system measures fuel in

pounds.

400

What is the minimum distance allowed between a fuel tank and the fire wall separating the engine?

One half inch

500

What must accompany fuel vaporization?

The absorption of heat

500

Where physical separation of the fuel lines from electrical wiring or conduit is impractical, locate the fuel line?

Below the wiring and clamp the line securely to the airframe structure 

500

What is the purpose of an engine-driven fuel pump bypass valve?

To prevent a damage or inoperative pump from blocking fuel flow of another pump is series with it

500

What are the four general types of fuel quantity gauges? 1. Sight glass. 2. Mechanical. 3. Electrical. 4. Electronic. 5. Bourdon tube. 6. Vane-type transmitter. 7. Litmus indicator. 8. Direct-reading static pressure type.

1, 2, 3, 4.

500

Which unit most accurately indicates fuel consumption of a reciprocating engine?

Fuel flowmeter.

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