Aircraft Instrument Systems Flashcards
What can be used to static check a manifold pressure indicator gauge ?
Current atmospheric pressure
What flight instruments are usually connected to a pitot static system ?
Air speed indicator, vertical speed indicator, altimeter and mach meter
Why should you avoid cleaning obstructions from the sensing holes in a pitot static system ?
The holes are aerodynamically critical
What causes an electric driven gyro rotor to tilt when the aircraft turns ?
Gyroscopic Precession
What indication error may be found in an altimeter ?
Scale erros, hysteresis (lags), friction and installation
What aircraft instrument can be used to check manifold pressure gauge for proper indication ?
Sensitive altimeter
What is a synchro type remote indicating system ?
A system that transmit information from one point to another point (flap position)
What does a tachometer indicate ?
Crankshaft RPM or main turbine rotor speed in % of RPM
Where does an electrical resistance temperature indicator receive a signal ?
From a temperature bulb or sensitive element
What type of indicating system is a turbine engine exhaust gas temperature system ?
Thermocouple
What methods are used to drive turn and bank / slip (gyroscopic turn indicator) indicators ?
Vacuum, air pressure or electricity
Who is authorized to apply the range markings to an instrument dial face ?
The manufacture or certificated instrument repair station
What does a yellow arc on an instrument dial indicate ?
Caution
Why are slippage marks used on instruments glass covers ?
To indicate glass rotation in the bezel
What references should be consulted to determine the proper range markings for an aircraft instruments ?
The aircraft maintenance manual, aircraft flight manual, TCDS, aircraft specifications
