P3-2a: Aircraft Systems (2.1-2.12) Flashcards
2.3 Reciprocating Engines 2.4 Ignition and Electrical Systems 2-6 Fuel Induction Systems 2-7 Carburetor Ice 2-10 Aviation Fuel 2-12 engine temperatures
2-3 What major four parts make up a reciprocating engine?
Cylinders, pistons, connection rods, crankshaft
2-3 Name the four strokes required in a two crankshaft revolution.
Intake, compression, power, exhaust strokes
2-4 Should it become necessary to handprop an airplane engine, it is extremely important that a competent pilot.
A call “ contact “ before touching the propeller .
B - be at the controls in the cockpit .
C - be in the cockpit and call out all commands .
B - be at the controls in the cockpit
2-4 What should be the first action after starting an aircraft engine ?
A - Adjust for proper RPM and check for desired indications on the engine gauges
2-4 What is one purpose for using reciprocating engines ?
A - Heat is distributed better .
B - To preserve cylinder head duration and maintain lower temperatures .
C - They are relatively simple and inexpensive to operate .
C - They are relatively simple and inexpensive to operate .
2-5 One purpose of the dual ignition system on an aircraft engine is to provide for
A - improved engine performance .
B - uniform heat distribution .
C - balanced cylinder head pressure
A - improved engine performance .
2-5 If the ground wire between the magneto and the ignition switch becomes disconnected , the most noticeable result will be that the engine
A- will run very rough .
B - cannot be started with the switch in the ON position .
C - cannot be shut down by turning the switch to the OFF position .
C - cannot be shut down by turning the switch to the OFF position .
An electrical system failure ( battery and alternator ) occurs in a magneto equipped aircraft during flight In this situation , you would
A - probably experience engine failure due to the loss of the engine - driven fuel pump and also experience failure of the radio equipment , lights and all instruments that require alternating current .
B - probably experience failure of the engine ignition system , fuel gauges , aircraft lighting system , and avionics equipment
C - experience avionics equipment failure .
C - experience avionics equipment failure .
2-5 Concerning the advantages of an aircraft generator or alternator , select the true statement .
A generator always provides more electrical current than an alternator .
B - An alternator provides more electrical power at lower engine RPM than a generator .
C - A generator charges the battery during low engine RPM ; therefore , the battery has less chance to become fully discharged , as often occurs with an alternator .
B - An alternator provides more electrical power at lower engine RPM than a generator
What is the basic purpose of adjusting the fuel/air mixture at altitude?
B - decrease the fuel flow in order to compensate for decreased air density .
2.7 Carburetor Ice occurs between what temperatures
20 and 70 degrees F
2-7 When carburetor heat is applied, the heated air is less dense or more dense
Less dense
2-7 Applying carburetor heat causes the air fuel mixture to become enriched and intern decreases or increases the engine output
Decreases
2-7 During engine run up prior to departure from a high altitude airport, the pilot may notice a slight engine roughness, which is not affected by the magneto check, worse when carb heat is applied. Why?
The air fuel mixture may be too rich due to the lower air density at high altitudes. Applying carburetor heat decreases the air density even more. Leaning the mixture, could solve this problem.
2-7 In a fixed pitch propeller airplane the first indicator of carburetor ice would likely be
Decrease in RPM as the air supplies choked off
2-8 The presence of carburetor ice in an aircraft equipped with a fixed - pitch propeller can be verified by applying carburetor heat and noting…
C - a decrease in RPM and then a gradual increase in RPM .
2-8 Carburetor icing can occur with an OAT as high as…?
B - 20 ° C and high relative humidity .
Generally speaking, the use of carburetor heat tends to?
A - decrease engine performance
2.6 What is the difference between the fuel induction and an fuel injection system
Fuel induction is carburetor induction, where the float-type carburetor takes in air that flows through a venturi.
2.6 In a carburetor, what forces the fuel into the airstream.
The pressure difference between the low pressure area and outside air forces fuel into the airstream (mix) then into the intake manifold.
What three things can you do to reduce detonation and pre-ignition during flight?
Lower the power, enrich the mixture, and lower cowl flaps.
What are the two fuel pump systems called in an airplane, and how are they driven?
The main pump system is engine driven,
and the Auxiliary electrical driven pump is used when the engine pump fails.
What is the electric auxiliary pump known as, how is it controlled, and what does it aid in starting?
Boost pump, controlled by a switch in the cockpit, aids in engine starting.
2-10 If the grade of fuel used in an aircraft engine is lower than specified for the engine , it will most likely cause
A- a mixture of fuel and air that is not uniform in all cylinders
B - lower cylinder head temperatures
C - detonation .
Detonation.
2-11 Detonation may occur at high power settings when
A - the fuel mixture ignites instantaneously instead of burning progressively and evenly .
B - an excessively rich fuel mixture causes an explosive gain in power .
C - the fuel mixture is ignited too early by hot carbon deposits in the cylinder .
A - the fuel mixture ignites instantaneously instead of burning progressively and evenly .
Detonation occurs in a reciprocating aircraft engine when
A - the spark plugs are fouled or shorted out or the wiring is defective.
B - hot spots in the combustion chamber ignite the fuel / air mixture in advance of normal ignition.
C - the unburned charge in the cylinders explodes instead of burning normally.
C - the unburned charge in the cylinders explodes instead of burning normally .
During preflight in cold weather, what should receive special attention?
C - ice from crankcase vapors that have condensed and subsequently frozen .
If a pilot suspects that the engine is detonating during climb-out after takeoff, what should be the initial corrective action?
B - lower the nose slightly to increase airspeed .
What is one procedure to aid in cooling an engine that is overheating ?
A - Enrichen the fuel mixture .
B - Increase the RPM
C - Reduce the airspeed .
A - Enrichen the fuel mixture .
A - Enrichen the fuel mixture .
AOT (operator)
Alert Operator Transmission
ARROW (paperwork needed to fly)
-Airworthyness Cert and
-Registration (displayed).
-Radio License (for international flight).
-Operators manual (not POH).
-Weight and balance (not precheck, OG weight (+ any extras (paint, new equip, etc.))
ARTCC (route)
Air route traffic control center.
ARTS (radar terminal)
Automated Radar Terminal System
ASDA (accelerated)
Accelerated Stop distance Available
ASEL
Airplane single engine land
ASTM ( testing and material)
American Society for Testing and Materials
A.T.
AIRMET TANGO
ATA
Actual time of arrival
ATIS
Automatic Terminal Information Service: Terminal
autokinisis
staring at a light too long at night it will begin to move
AWBH (aw+bh)
Aircraft Weight and Balance Handbook
AWOS
Automated weather observing system: FAA
AWOS-A
reports altimeter settings all other information is advisory only
