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125 Cards in this Set
- Front
- Back
List the two primary purposes of aircraft lighting |
A1. To provide specialized exterior lighting and illuminating the interior.
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Why should spare light bulbs be shock mounted |
A2. To prevent filament fatigue failure.
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What are the two most common types of bulb bases |
A3. Single and double contact bayonet.
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What type of light is used to attract visual attention to the aircraft’s position and heading at night? |
A4. Navigation lights |
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On which wing tip will the green navigation light be found? ? |
A5. Right wing tip.
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A bluish-green anticollision light identifies what type of aircraft?
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A6. Tanker aircraft.
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When the angle of attack is perfect for the landing approach, what color AOA light illuminates |
A7. Amber |
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Q1. The science of liquid pressure and flow is known as
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A1. Hydraulics. . |
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Q3. In a hydraulic system, what unit creates fluid flow?
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THE PUMP |
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Q4. What does the hydraulic actuating unit convert fluid pressure into?
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A4. Useful work by linear/reciprocatingmechanical motion.
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Q5. Why does the arresting gear hook relay have a 1.1 second delay?
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A5. To ensure the hook is up and locked before removing hydraulic pressure.
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Q6. What system provides the pilot with adequate directional control during ground operations?
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A6. Nose wheel steering.
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Q7. During emergency retraction, what is used to close the speed brake?
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A7. The airstream pressure. |
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Q8. The pneumatic system compressor comes on when system pressure drops below what value? |
A8. 2,750 PSI
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The frictional temperature increase created by ram compression on the skin surface of the aircraft is known as
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A1. Ram air temperature. |
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What is the conditioning primary purpose of an airand pressurization system?
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A2. Crew safety and comfort.
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Where is the resistance heating element installed in electrically heated windshields?
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A3. On the inner surface of the outer pane of glass. . |
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What do aircraft equipped with wing deice systems use to prevent ice buildup on the leading edge? ? |
A4. Hot air from combustion heaters or engine compressors.
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What does the P-3 empennage anti/deicing systems use to prevent ice buildup |
A5. Electrical heating elements |
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The air turbine starter converts energy from
what type of air to shaft power? |
Converts energy from compressed air to
shaft |
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The external stop switch de-energizes the air turbine start control holding relay by |
A4. Removing the positive potential. |
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Q1. Why is timing not a factor in jet engine ignition systems?
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A1. Jet engines run on a continuous burning fire.
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Q2. What unit in an ignition system develops enough voltage to produce a spark?
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A2. The ignition exciter.
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Q3. At what engine RPM does ignition normally stop?
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A3. Between 45 percent and 65 percent of the engine rated speed.
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Q4. In the capacitor-discharge ignition system, what total number of pulses must occur before the capacitor discharges?
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A4. 34 pulses.
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Q5. Engine ignite reactivates automatically when either of what two conditions occurs?
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A5. A flameout or during aircraft weapons fire.
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List the four positions of the E-2 aircraft condition lever.
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A1. Feather, ground stop, run, and airstart.
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When is the temperature datum control in the temperature controlling range? . |
When the power lever is above 66°F coordinator and the temp datum switch is in AUTO. |
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At what RPM is the engine limiting temperature 830°C?
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A3. Below 94 percent RPM.
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Thermocouple leads are made of
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A4. Chromel and Alumel.
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List the main components of an engine coordinator |
A5. A variable potentiometer, discriminating device, and a cam-operated switch. |
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During a P-3 engine start, at what percent RPM does the start control switch reenergize?
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A1. 65 percent RPM. . |
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What are the three switches in the speedsensitive control? |
A2. 16, 65, and 94 percent switches.
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How much greater is the capacity of the primary pump than the secondary pump?
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A3. 10 percent.
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Q4. Why is the fuel control schedule 20 percent richer than nominal engine requirements?
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A4. To accommodate the temperature datum valve.
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Q5. What unit minimizes the amount of fuel dropping into the combustion liners during engine shutdown? |
A5. Drain valves |
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In supersonic flight, icing doesn’t occur for what reason?
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A1. Friction of the air over the aircraft creates enough heat to prevent icing.
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What are the two types of anti-icing/deicing systems used on aircraft?
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A2. Hot bleed air and electrical.
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At what point in the engine is the air the coldest and most likely to ice?
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A3. Air at the inlet guide vanes. |
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What is the difference between propeller deicing and anti-icing? |
A4. Deicing removes ice already built up whereas anti-icing prevents ice buildup |
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The circuit that differentiates between an overtemp (fire} and a short circuit in afire warning system is known as a
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A1. Short discriminator circuit.
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Q2. The fire warning element has an inverse temperature coefficient. What does this statement mean?
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As the temperature increases, the resistance of the sensing element decreases.
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In the F-18 fuel transfer system, what fuel tanks feed the engines?
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A1. Fuel tanks 2 and 3.
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Q2. When does fuel transfer from the wing start? |
A2. When the fuel level drops below the high pilot valves in tanks 1 and/or 4.
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When does the fuel transfer center of gravity control system energize? |
A3. When fuel tank 1 transfers at a faster rate than fuel tank 4.
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When the engine is shut down and the throttle is in the off position, the variable exhaust nozzle is in what position?
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A1. Closed.
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What unit in the variable exhaust nozzle adjusts the VEN for atmospheric conditions?
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A2. The electrical control assembly (ECA |
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Q1. What are the two ranges of propeller operation?
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A1. Flight and ground operation ranges.
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Q2. What mode of operation is the synchrophaser in when maintaining all propellers at the same RPM?
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A2. Synchrophasing governing mode.
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Q3. What unit provides a means of setting phase relationships between the master and slave propellers in the synchrophase system?
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A3. Phase and trim control unit.
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Q4. The synchrophaser speed derivative circuit is used to dampen changes in
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A4. Engine RPM.
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Q5. The slave propellers are prevented from following an overspeed or underspeed master propeller by what synchrophaser circuit? |
A5. The limiting circuit (two precent). |
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What propeller system is used only during takeoff?
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A1. Thrust.
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Q7. During ground propeller unfeathering, how do you decrease blade angle below 45 degrees? |
A2. Low pitch stop.
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The propeller is used to convert engine shaft horsepower to What mechanical unit maintains a minimum blade angle?
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A3. Variable hydraulic low pitch stop. |
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What does the beta follow-up system provide?
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A4. Pitch lock reset.
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What system resets pitchlock RPM from 103.5 percent to 109 percent during an aborted takeoff?
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A5. Feather valve. . |
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What valve bypasses all other control functions to feather the propeller? |
A6. Automatic feathering system.
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To maintain the best angle-of-attack during landing approaches, the approach power compensator automatically controls
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A1. Engine power.
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What does the approach power compensator use to compensate for differences in ambient temperatures |
A3. A three-position temperature switch.
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Q3. During bladefold operations, if one blade fails to fold, will the other blades fold?
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A3. Yes.
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Q4. During blade spread operations, the actuators run in the fold condition after lockpin position switches activate to
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A4. To relieve stress built up on the segment gear.
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Q5. During pylon and stabilator fold, at what point does the crack open switch power the tail rotor blade position actuator? |
A5. About 50 open
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The ratio of the speed of an object to the speed of sound in the same medium and at the same temperature is known as
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A1. Mach number.
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Q2. The F-18 engine bleed air system duct doors
are controlled by |
A2. Two flight control computers.
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List the two ways of grouping aircraft instruments. |
A1. By operating principles and the job they perform.
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What determines the air pressure at any given altitude? |
A2. The weight of the air above that altitude.
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What is the standard atmospheric pressure at 5,000 feet of altitude? |
A3. 12.23 pounds per square inch.
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Name the three indicators that use pressures from the pitot-static system. |
A4. Airspeed, altimeter, and vertical speed indicator |
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Q5. What instrument uses both pitot and static PRESSURE |
Airspeed indicator.
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What is the Mach number for an aircraft flying at twice the speed of sound?
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Mach 2.
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Q7. Define the terms “AGL” and “MSL.”
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AGL—Altitude above ground level, and MSL —altitude above mean sea level. . |
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Q8. Define the term “absolute altitude.”
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The distance between the aircraft and the terrain it is flying over.
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Q9. What is the name for the aneroid mechanism used in most altimeters?
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Bimetal yoke.
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Q10. Name the four inputs to the air data computer system.
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Total pressure (pitot), indicated static pressure, indicated angle of attack, and total temperature.
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Q11. Define the term “impact pressure |
The force of air against the aircraft.
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Q12. What is the operational limit of aircraft using the CPU-46/A supersonic altitude computer? |
80,000 feet of altitude and Mach 2.5.
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What system actuates the rudder pedal shaker to warn the pilot of an impending stall? |
Angle of attack.
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What determines the degrees of freedom for a gyro |
The number of gimbals the gyro has. .
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Name the two basic properties of gyrofrom the pitot-static system. scopic action. |
Rigidity in space and precession |
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What indicator shows the lateral attitude of an aircraft? |
Turn-and-bank indicator |
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What tach generator output is proportional to the engine speed?
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Frequency.
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When there is an open in the voltage supply circuit, what will the galvanometer of a Wheatstone bridge read?
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Zero. . |
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In a radiometer-type temperature indicator, what component determines needle position?
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How the permanent magnet aligns to the flux of the two coils.
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What is a thermocouple?
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A junction of two unlike metals used to sense temperature.
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In the fuel flow transmitter, what component senses vane movement and sends it to the synchro motor?
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Magnets (ring magnet and bar magnet).
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Name two ways of indicating oil pressure.
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The Bourdon tube and the synchro system.
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In the torquemeter system, what shaft is the reference shaft? |
The outer shaft |
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Q1. Name the two types of fuel probes.
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Non characterized and characterized.
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Q2. Upon what does the density of fuel depend? |
Temperature.
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WHAT UNIT IN THE FULE QUANTITY SYSTEM DEPENDS ON THE DIALCTRIC CONTENT REWATEH THE QUANTITY |
The compensator probe.
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NAME THE POSITION INDICATOR VARIOUS SYSTEMS INTO ON SYSTEM |
Integrated position indicator |
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What type of marking is used to identify dial face slippage?
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White paint.
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Q2. When installing rigid tube markings, what is the minimum number per compartment?
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A2. One.
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Q3. What is the color of the identfication tape on electrical conduits?
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A3. Brown and orange.
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Q4. Name the four classes of hazards identified by identification of hazards tape. 6- |
A4. Flammable material, toxic and poisonous materials, anesthetics and harmful materials, and physically dangerous materials. |
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What are the two main purposes of the AFCSand ASE
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To Ease pilot workload and provide aircraft stability at all
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what is air foil
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Any part of an aircraft designed to produce lift
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When the pressure on both sides of the airfoil is nearly equal, what happens to the airfoil
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the airfoil stalls
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fixed wing ac controls
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What to type of altitude signals can the AFCS is used to maintain a constant altitude
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Radar and barometric altimeter signals
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Why is the AFCS synchronized with the flight controls before engaging the AFCS
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To prevent sudden and violent maneuvers upon engagement
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What AFCS component provide signal output representing yaw pitch and roll rates
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3 axis rate gyros
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What unit is considered the heart of the AFCS
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The air navigation computer
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What type of heading signal does bases received from the compass/ INS system
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Clutch heading signal
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What are the two modes of operation for electro hydraulic servo actuators
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Manual and AFCS engaged
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What unit of the AFC s send a signal that acts as a follow up to flight control movement
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Surface position transmitter
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What AFCS mode automatically dancing oscillation in the yard, bitch, and roll rate axes
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Ability augmentation mode
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In the H 60 bladefold systems the transmission low oil pressure relay is energized by a
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transmition pressure switch
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When the rotor head is on the insulated area between index Drive slip ring segments 180 degrees from the index position and what direction will the rotor head travel toward index
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Counterclockwise
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List two ways of grouping aircraft instruments
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By operating principles and the job they perform
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What determines the air pressure at any given altitude
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The weight of the air above that altitude
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What is the standard atmospheric pressure at 5000 feet
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12.23 pounds per square inch
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Name the three indicators that use pressures from pitot-static system
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Airspeed, altimeter and vertical speed indicator
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what instrument uses both pitot and static air pressure
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Airspeed indicator
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What is the Mach number for an aircraft flying at twice the speed of sound
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Mach 2
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Define the terms AGL and MSL
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AGL altitude above ground level MSL altitude above mean sea level
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Define the term absolute altitude
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The distance between the aircraft and the terrain it is flying over
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What is the name for the android mechanism used in most altimeters
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Bimetal yoke
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Name the four input to the air data computer system
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Total pressure (pitot ) indicated static pressure indicated angle of attack and total temperature
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Define the term impact pressure
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The force of air against the aircraft
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What is the operational limit of aircraft using the CPU -46/A supersonic altitude computer
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80,000 feet of thealtitude and mach 2.5
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What system actuate the rudder pedal shaker to warn the pilot of an impending stall
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Angle of attack
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What determine the degree of freedom for a gyro
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Number of Gimbels the gyro has
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Name the two basic properties gyroscopic action
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Rigidity in space and precision
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