Ground Handling

Question 1

Name the two ways that liquid aviation fuels are classified:

Answer 1

Volatile and Non-volatile

Question 2

What are the four grades of aviation gasoline?

Answer 2

80/87
100/130
100LL
115/145

Question 3

What is aviation fuel usually made of?

Answer 3

Kerosene and AVGAS

Question 4

Why is it important for static electricity to be discharged from the aircraft before fueling?

Answer 4

the static electricity in the airframe attempts to return to the ground through the fuel line causing a spark that can ignite any vaporized fuel

Question 5

Three types of turbine fuels used in civilian aviation are:

Answer 5

Jet A, Jet A-1, Jet B

Question 6

What is the distance required before fueling an aircraft within range of an operating radar?

Answer 6

500ft

Question 7

Why should you never mix AVGAS and turbine fuel?

Answer 7

Adding jet fuel to AVGAS causes a decrease in power and could cause damage to the engine

Question 8

What are three effects of microorganism in Jet fuel?

Answer 8

1. Formation of slime and sludge
2. Emulsification of the fuel
3. Corrosive compounds that can attack the fuel tank structure

Question 9

Do not refuel an aircraft if lightning is within how many miles?

Answer 9

5 miles

Question 10

What color is 100 Low Lead gasoline?

Answer 10

Blue

Question 11

What is the best way of controlling contamination in fuel?

Answer 11

prevent its introduction into the fuel system

Question 12

Where on refueling equipment would a mechanic find information on the grade of gasoline onboard?

Answer 12

The color code band on piping and fueling equipment

Question 13

What are the two types of Jet fuel?

Answer 13

Jet A and Jet B

Question 14

How does Jet A differ from Jet B?

Answer 14

Jet A is made from kerosene
Jet B is a blend of Kerosene and AVGAS

Question 15

If you had to mix AVGAS with jet fuel, what document would you consult with first?

Answer 15

Refer to the TCDS for the respective powerplant

Question 16

How can entrained water be detected in Jet Fuel?

Answer 16

It gives the fuel a cloudy look

Question 17

If a fuel sample is cloudy, what does this indicate?

Answer 17

That there is entrained water in the fuel

Question 18

What is microbiological growth?

Answer 18

Microorganisms that can live in the free water in jet fuel

Needs water and warmth to grow

Question 19

What effects does free water have on engine operation?

Answer 19

Ice crystals may form, clogging filters and other small orifices

Question 20

Solid contaminants are what?

Answer 20

Contaminants that are insoluble in fuel

Question 21

What are the most common types of solid contamination?

Answer 21

Rust, dirt, sand, gasket material, lint, and fragments of shop towels

Question 22

When servicing oxygen, why is it important to keep tools clean, free of grease and oil?

Answer 22

Oxygen combines with grease and oil to form a highly explosive mixture that is sensitive to compression or impact

Question 23

Why should the propeller of a radial engine be pulled through for several revolutions before the engine is started?

Answer 23

To detect hydraulic lock

Question 24

When starting a reciprocating engine, should the carburetor heat control be in the hot or cold position?

Answer 24

Cold

Question 25

When starting a small reciprocating engine by hand, should the person in the cockpit repeat the word contact before or after the ignition switch is turned on?

Answer 25

before

Question 26

How may a reciprocating engine that has been flooded be cleared of the excessive fuel in the cylinders?

Answer 26

Turn it over by hand or by the starter

Question 27

What should be done to a reciprocating engine if there is no indication of oil pressure within 30 seconds?

Answer 27

Stop the engine and determine the problem

Question 28

When operating an engine with a controllable pitch propeller on the ground, should the propeller be in the low pitch position or the high pitch position?

Answer 28

full low pitch

Question 29

What should be done if an engine develops an induction system fire as it is being started?

Answer 29

Continue cranking to start the engine and extinguish the fire (you can also direct the CO2 into the engine intake)

Question 30

How far **ahead** of an idling turbine engine does the danger area extend?

Answer 30

25ft

Question 31

How far **behind** an idling turbine does the danger area extend?

Answer 31

100ft

Question 32

While starting a turbine engine, what are four things you should always observe?

Answer 32

1. starter duty cycle 2. Air pressure or electrical capacity 3. Turbine Inlet Temperature 4. Provide fuel under low pressure to the engines fuel pump

Question 33

Why is it extremely important that the ramp area be clean before running a turbine engine?

Answer 33

Because the turbine inlets suck in anything light enough

Question 34

What is meant by a hung start of a turbine engine?

Answer 34

When the turbine engine starts but doesn't accelerate

Question 35

What must be done if fuel is spilled on personnel or clothing?

Answer 35

It must be removed as soon as possible

Question 36

What are the two main advantages of pressure fueling compared to overwing fueling on an aircraft?

Answer 36

Decreases time to fuel and reduces the chance of static electricity igniting the fuel

Question 37

What is a Class A fire?

Answer 37

Ordinary combustible materials Wood, cloth, paper, etc

Question 38

What is a Class B fire?

Answer 38

Flammable liquid Fuel, oil, hydraulic fluid, etc

Question 39

What is a Class C fire?

Answer 39

Electrical

Question 40

What is a Class D fire?

Answer 40

Flammable Metals

Question 41

What are three requirements for a fire?

Answer 41

Fuel Heat Oxygen

Question 42

What type of fire extinguisher is best suited for a Class A fire?

Answer 42

Water extinguisher

Question 43

What type of fire extinguisher is best suited for a Class B fire?

Answer 43

Halogenated Hydrocarbon

Question 44

What type of fire extinguisher is best suited for a Class C fire?

Answer 44

Halogenated Hydrocarbon

Question 45

What type of fire extinguishing agent is not recommended for use in the aircraft industry? (except on metals)

Answer 45

Dry powder

Question 46

What type of oxygen is used when charging a high pressure oxygen system in an aircraft?

Answer 46

BB-O-925A Aviators Breathing Oxygen

Question 47

Why are two persons required to properly service an aircraft oxygen system?

Answer 47

In case of an emergency

Question 48

What is one main disadvantage of manila rope for use as a tie down for aircraft?

Answer 48

It shrinks when wet

Question 49

What is indicated if while taxiing an aircraft near an active runway, the control tower shines a flashing white light at the aircraft?

Answer 49

Return to starting point

Question 50

What is indicated if while taxiing an aircraft near an active runway, the control tower shines a steady red light at the aircraft?

Answer 50

Stop