Aircraft Instrument Systems

19 cards   |   Total Attempts: 184
  

Cards In This Set

Front Back
What three flight instruments are normally operated from the pitot-static system?
Airspeed indicator, Altimeter, and Vertical speed indicator.
What instrument indications will result if the static pressure line becomes disconnected inside the cabin of a pressurized aircraft?
Altimeter and airspeed will be lower than normal. The vertical speed indicator will eventually return to zero.
What is required after replacement of components connected to the pitot-static system?
Leak test.
What are the sources of power to gyroscopic instrument operation?
Vacuum, electricity, or air pressure.
What causes an electric driven gyro rotor to tilt when the aircraft is turned?
Gyroscopic precession.
What is used as a guide for range marking of aircraft instruments?
Aircraft specifications, or Type Certificate Dats Sheets and the Specific aircraft maintenance manual or flight manual.
Where are instrument range markings placed?
The outer edge of the cover glass or over the calibrations on the dial face.
What other type mark is required when range markings are applied to the glass instrument cover?
A white index mark that will indicate slippage.
What is a syncro-type remote indicating system?
They show the movement and position of landing gear, wing flaps, oil cooler doors, or other moveable parts on the aircraft.
What type of fuel quantity system is an electric fuel measuring device that accurately determines the density weight of the fuel in the tanks of an aircraft?
Capacitor fuel type quantity system.
What is meant by swinging a compass?
The adjustment of the North-South, East-West magnets in order to reduce deviation.
When inspecting a magnetic compass, the bowl should be filled with liquid and should not contain any bubbles or discolorations. What is the purpose of the liquid in the bowl?
Dampen the oscillations.
Which instrument is used to indicate the speed of the crankshaft of a reciprocating engine and the speed of the main rotor assembly in a turbine engine?
Tachometer.
What type of indicating system is used to indicate turbine engine exhaust gas temperature (EGT).
A thermocouple system
What does the manifold pressure gauge indicate when the engine is not operating?
Atmospheric pressure.