Ground operation and servicing Flashcards

1
Q

Name possible hazards that may be encountered during typical ground operations

A

Fire during engine start, turning propellers, rotors, jet blast, and turbine inlet areas. Other aircraft vehicles, people obstacles, foreign object debris

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2
Q

What is the most generally use knot for tying down small aircraft?

A

The bowline

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3
Q

Describe the precautions that should be taken to protect life and property while starting and running an aircraft engine

A

Study the procedures in the airplane flight manual, be sure the propeller or inlet area is clear and check the area for loose stones gravel debris that can be sucked into the prop or engine

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4
Q

If an engine induction fire occurs while starting a reciprocating engine, what procedure should be followed to extinguish the fire

A

Continue cranking the engine to start it and hopefully suck the fire into the engine. If the engine doesn’t start in the fire continues to burn discontinued to start a time shut off the fuel source extinguish the fire with a suitable fire extinguisher

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5
Q

What safety procedures must be observed on hand propping a small aircraft

A

Become thoroughly trained, have a qualified person in the cockpit, checked the brakes call switch off before moving the prop and make sure you have a solid footing. When ready to start, call contact and listen for the reply swing the prop with the flat of your hand and move back from the prop arc

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6
Q

What procedure should be followed prior to starting a large radial engine to detect and or prevent hydraulic lock in the cylinders

A

Pull the propeller through by hand for three or four revolutions resistance to the prop turning indicates a possible hydraulic lock at least one of the cylinders

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7
Q

What is the cause of hydraulic lock in large radial engines?

A

Oil seeps between the piston rings and accumulates in the combustion chamber of the lower cylinders

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8
Q

What damage is most likely to result from hydraulic lock?

A

Sufficient for us can be exerted on the crankshaft to bend, or break the connecting rod

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9
Q

What is a material safety data sheet?

A

A detailed chemical information sheet explaining health and safety risk when using the product

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10
Q

What are the safety precautions when using a drill press

A

Where I protection and air protection, clamp, all work, securely, proper RPM, for the material used stop machine to make adjustments to the work, or to remove jammed, work and clean the area when finished

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11
Q

When towing in aircraft with a tow vehicle, what breaks are used when the aircraft is to be stopped?

A

The tow vehicle breaks, the aircraft brakes should only be used in an emergency

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12
Q

What is meant by a hot start when starting a jet engine?

A

Ignition occurs with an excessively rich mixture, leading to a rapid temperature rise that can exceed the EGT limit

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13
Q

Why should a mechanic know the standard light signals at an airport?

A

Light signals bank may be used when taxiing an airplane without a radio, or when a radio becomes in operative of a tower controlled airport

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14
Q

If a mixture of aviation, gasoline and jet fuel is used in a reciprocating aircraft engine, order the possible results

A

Avgas contaminated by jet fuel, must not be used in piston engines. The engine may be damaged or destroyed.

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15
Q

When is pre-oiling of a reciprocating engine necessary

A

Pre-oiling is used before starting a new engine or an engine that has been preserved for storage

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16
Q

What does the number 100 signify in 100 LL aviation gasoline?

A

It refers to the lean mixture, performance number, or octane rating of the fuel

17
Q

Is it permissible to use of gas in a turbine engine?

A

Limited operation may be allowed by the manufacture, continued use, may reduce efficiency due to lead deposits on the turbine blades

18
Q

What are some of the possible outcomes of using a low-grade of avgas, then the specified grade

A

And increase chance of engine damage, due to detonation loss of engine power, and an increased probability of overheating

19
Q

Part 23.973 of the FAA regulations specifies that certain markings must be placed adjacent to the fuel filler openings what markings are used for reciprocating engine powered airplanes

A

The filler openings must be marked with the fuel grade and the word avgas

20
Q

Describe the important precautions that should be observed when fueling an aircraft

A

Be certain you are using the correct fuel properly, ground the aircraft and refueling unit and protect the aircraft surfaces from hose and nozzle damage

21
Q

The marking requirements for oil tank, filler openings as specified by FAR 23.1157. What markings are required for piston powered airplanes?

A

The word oil, and the permissible grades, and or types or reference to the appropriate airplane flight manual for permissible, grades, and or types

22
Q

Where can the standard aircraft taxi hand signals be found?

A

In the aeronautical information manual

23
Q

Under what condition may automobile gasoline be used in an aircraft engine?

A

Only if approved by the FAA usually by the issuance of the supplementary type certificate (STC)

24
Q

What are the indications of water in aircraft feel after draining a sample from the fuel sumps

A

The sample may have a cloudy or hazy appearance, or a solid slug of water in the bottom of the sample