11.5 Flashcards
What clock is used in a GPS satellite?
Atomic
In a GPS system what type of clock is in the receiver?
Quartz
What is mode 1 and 2 of GPWS used for?
Excessive descent rate and excessive terrain closure
IRS laser gyro is what type of gyro?
Rate gyro
A HF coupling is used to match the?
Aerial
Coriolis effect is corrected for by?
Adding a correction term to the accelerometer outputs
FMCS utilises:
ILS, DME & ADC
FM improvements effect what systems?
VHF, VOR & ILS
FMC auto tunes?
VOR & DME
What type of gyroscope is housed within an attitude indicator?
Displacement gyroscope
What kind of gyro is a rate gyro?
Tied down
What is the purpose of the hairspring in a Bourdon tube pressure gauge?
To reduce backlash
What errors are direct reading compasses subject to?
Acceleration and turning errors
TAS computed from IAS takes into account?
Temperature and altitude
TAS in an ADC is a function of?
Mach number and temperature
The directional gyro is checked every 15 minutes for?
Drift
The capsule in an altimeter responds to?
Absolute pressure
One atmosphere is?
760 mm.hg
A laser gyro gives?
Rate of angular displacement
A standby air supply for gyro operation could be obtained from?
A Venturi
An altimeter in a pressurised aircraft at altitude has a case leak. The altimeter will?
Under read
Gauge pressure as indicated on a direct reading Bourdon tube pressure gauge is equal to?
Absolute pressure minus atmospheric pressure