Ground operation and servicing Flashcards
(30 cards)
what is the procedure for extinguishing reciprocating engine induction system fires that occur during starting
continue cranking to start the engine and blow out the fire. If the engine does not start and the fire continues to burn, discontinue starting and have the fireguard extinguish the fire
what procedure should be followed before starting a radial engine to detect liquid(hydraulic) locking of the cylinders
pull the propeller through three or four complete revolutions by hand to detect a hydraulic lock
what damage is most likely to result from liquid lock
sufficient force can be exerted on the crankshaft to bend or break a connecting rod
what information must be located adjacent to fuel filler openings for reciprocating engine powered airplanes built under the current airworthiness standards of 14 CFR part 23
the fuel filler openings are clearly marked with the word AVGAS and the minimum fuel grade
what information must be located adjacent to oil filer openings for reciprocating engine powered airplanes built under the current airworthiness standards of 14 CFR part 23
the oil tank filter openings are clearly marked with the word OIL and the permissible oil designations of reference to the Airplane Flight Manual (AFM) for permissible oil designations
what are the results of using aviation gasoline in a turbine engine
A limited operation may be allowed by the manufacturer. Continued use may cause a loss in engine efficiency and possible engine damage
what is the possible result of operating an engine with a lower grade of gasoline specified
loss of engine power, the probability of the engine overheating and engine damage due to detonation
what are the physical and safety requirements for starting and running a powerplant
use a proper checklist; position the aircraft into the wind; check prop(or jet) blast (and jet intake) area; secure external power cart; and use a fireguard
what are the starting safety procedures when hand propping a small engine
fuel on, switch off, throttle closed and brakes on. contact is called and the switch is placed ON. Be sure the ground is firm and do not lean into the propeller arc
what type of knots should be used when using rope to secure light aircraft
anti slip knots such as the bowline or square knot
when towing an aircraft with a tow vehicle, what brakes are used when the aircraft is to be stopped
the tow vehicle brakes; the aircraft brakes should only be used ONLY if necessary in emergency conditions
why should aviation mechanics know standard light signals
standard light signals may be used for taxi control when taxiing aircraft
where are aircraft taxi hand signals publishes
the Aeronautical Information Manual (AIM). Formerly known as the Airman’s Information Manual
when refueling an aircraft, what precautions should be taken
use the correct fuel; properly ground the aircraft and refueling unit; protect aircraft surfaces from hose or nozzle damage
what is meant by the term HOT START when starting an aircraft turbine engine
a hot start occur when the engine operating temperature exceeds specified limits during start
may automotive gasoline be used in an aircraft engine
only if FAA approved (such as with a supplemental type certificate)
how do you determine the presence of water in aircraft fuel when draining fuel sumps
a fuel sample may have a cloudy or hazy appearance or may even contain a solid slug of water. Also chemical treatment of samples can detect invisible water
what are some typical ground operation(engine run-up and or taxi) hazards to watch for or take precautions against. Name at least three
1) Foreign objects(loose hardware, rocks, gravel, etc) in the run up or taxi area 2) other aircraft or obstacles (including people) 3) the possibility of a fire, especially during a start (use a fireguard) 4) noise levels that can be damaging to hearing 5) turning propellers or rotors, prop or jet blast and jet intake areas 6) hydraulic lock in radial engines 7) Weathervaning in tailwheel aircraft 8) limited or partially obstructed visibility from inside some aircraft
what does the number 100 refer in 100LL aviation gasoline
it is lean mixture performance number(or octane rating) for the fuel
what are the safety precautions when using a drill press
wear eye and ear protection, clamp all work securely, proper rpm for material used, stop machine before adjusting work or removed jammed work and clean area when finished
why are water type fire extinguishers not recommended on class C fires
the possibility of electrocution because water is a good conductor
why are fingers not curled over the prop when propping an engine
kickback from the engine may break them or draw your body into the blade path
why is a tire cage recommended when inflating aircraft tires
to prevent possible personal injury should the tire or wheel fail
what is the Material Safety Data Sheet
a detailed chemical information sheet explaining health and safety risks when using the product
detailed information about the hazards associated with a chemical product, as well as how to work safely with it
