ATSEP-BASIC-METEOROLGY (BAS-MET)
Why is Meteorology important for aviation?
Meteorological service for safety, regularity and efficiency of international air navigation
Does pressure increase or decrease when climbing ?
It decreases because more atmosphere is below us when we climb up.
...
ATSEP BASIC - All in one Quizzes And
Answers
What type of surveillance is regarded Non-cooperative, independent surveillance?
PSR radar
What surveillance technique is ADS-B?
Cooperative, dependent surveillance
What is an example of Cooperative, Independent surveillance?
SSR radar
How is an aircraft detected by the PSR?
By reflected electromagnetic energy transmitted from the radar
What is radar clutter on an ATM radar?
Unwanted targets
What is a limitation to the PSR radar?
No identification of received echoes
What is meant by PRI?
Pulse repetition interval
What is the purpose of the duplexer?
To alternately switch the antenna between receiving and transmitting
What is the operating principle of the aircraft transponder?
To code a reply on the 1090MHz frequency in response to a SSR radar interrogation
What is transmitted on a Mode C reply from a transponder?
Pressure altitude
What is it called when replies from 2 aircraft overlap causing errors in extracting the included data?
Garbling
What is a disadvantage of the classical SSR radar?
Garbling can occur if 2 aircraft are close in slant range and on the same bearing
What is a feature of Mode S?
Selective interrogations to reduce FRUIT
What is provided with Mode S enhanced surveillance?
Downlinked aircraft parameters
, What is a feature of the Monopulse SSR radar?
Improved azimuth resolution and fewer pulses needed to determine position
ADS (automatic dependent surveillance) is a surveillance technique for use by ATS in which:
Aircraft automatically provide, via data link, data from on-board navigation systems
What is a feature of ADS-B?
High update rate and simple, omnidirectional receivers
Which airborne equipment supports the 1090ES messages?
The Mode S transponder
What is the dominant ADS-B data link technology in Europe?
1090 extended squitter
What is the purpose of Mode S Short squitter?
ACAS/TCAS interrogations
What is variation?
The difference between true and magnetic north
What is meant by instrument flight rules?
Flying by reference to instruments in the flight deck, and navigation is accomplished by reference to
electronic signals
What is the most common geodetic reference system with global coverage?
WGS 84
What is meant by "dead reckoning"?
Determining position based on known speed, course and elapsed time
What is meant by "course" in relation to aircraft movement?
The direction over the ground the aircraft is moving
What is considered an integrity risk in relation to navigational performance?
That undetected navigational system errors results in hazardously and misleading information to an
aircraft
On what frequency band is the DME operating on?
UHF
What is an advantage with the NDB?
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