021.08 FUEL SYSTEM

Question 1

AVGAS 100LL is associated with the colour (blue/green/red/black)​.

Answer 1

AVGAS 100LL is associated with the colour (blue).

Question 2

AVGAS 100 is associated with the colour (blue/green/red/black)​.

Answer 2

AVGAS 100 is associated with the colour (green).

Question 3

AVGAS 80 is associated with the colour (blue/green/red/black)​.

Answer 3

AVGAS 80 is associated with the colour (red).

Question 4

The flash point of fuel is the (lowest/highest) temperature of (fluid/vapour) at which it ignites in contact with a flame.

Answer 4

The flash point of fuel is the (lowest) temperature of (vapour) at which it ignites in contact with a flame.

Question 5

On small aircraft the fuel content is typically measured by the (volume/level/weight)​ of the fuel in the tank.

Answer 5

On small aircraft the fuel content is typically measured by the (level) of the fuel in the tank.

Question 6

• The freezing point of Jet A is at a (higher/lower) temperature than Jet B
• The flash point of Jet A is at a (higher/lower) temperature than Jet B

Answer 6

• The freezing point of Jet A is at a (higher) temperature than Jet B (Jet A = -47 °C, Jet B = -60 °C)
• The flash point of Jet A is at a (higher) temperature than Jet B (Jet A = 38 °C, Jet B = -20 °C)

Question 7

The operating pressure of a booster pump in the fuel supply system of a gas turbine aircraft is typically within the (…) to (…) psi range.

Answer 7

The operating pressure of a booster pump in the fuel supply system of a gas turbine aircraft is typically within the (20) to (100) psi range.

Question 8

The freezing point of Jet A-1 is (…) °​C.

Answer 8

The freezing point of Jet A-1 is (-47) °C.

Question 9

A typical value of the fuel density of AVGAS 100LL fuel at 15°C is (…)​ kg/l.

Answer 9

A typical value of the fuel density of AVGAS 100LL fuel at 15°C is (0.72) kg/l.

Question 10

A typical value of the fuel density of Jet A-1 fuel at 15°C is (…)​ kg/l.

Answer 10

A typical value of the fuel density of Jet A-1 fuel at 15°C is (0.8) kg/l.

Question 11

On most transport jet aircraft, the low pressure pumps of the fuel system are supplied with (28/115) V (AC/DC) electric power.

Answer 11

On most transport jet aircraft, the low pressure pumps of the fuel system are supplied with (115) V (AC) electric power.