Restricted Operator Certificate - Aeronautical (ROC-A) Exam 2023 with complete solution
The order of priority for transmission of messages in the aeronautical service is:
1. Distress communications.
2. Urgency communications.
3. Communications relating to radio direction-finding.
4. Flight s...
Restricted Operator Certificate - Aeronautical (ROC-A)
Exam 2023 with complete solution
The order of priority for transmission of messages in the aeronautical service is:
1. Distress communications.
2. Urgency communications.
3. Communications relating to radio direction-finding.
4. Flight safety messages.
5. Meteorological messages.
6. Flight regularity messages.
7. Messages relating to the application of the United Nations Charter.
8. Government messages for which priority has been expressly requested.
9. Service communications relating to the workings of the telecommunication service or
to communications previously exchanged.
10. All other aeronautical communications.
Aerodrome
Any area of land, water (including frozen surface) or any other supporting structure
used, designed, prepared, equipped or set apart for use, either whole or in part, for the
arrival, departure, movement or servicing of aircraft. This includes any buildings,
installations and equipment situated thereon or associated therewith.
Aeronautical Service
A radiocommunication service that provides for the safety and navigation and other
operations of aircraft, and that may also include the exchange of air-to-ground
messages on behalf of the public.
Aircraft Station
A mobile station in the aeronautical service, other than a survival craft, located on board
an aircraft.
Aeronautical Operational Control Communications (AOCC)
Communications related to the regularity of flight.
Aeronautical Station
A land station in the aeronautical mobile service. In certain instances, an aeronautical
station may be located, for example, on board a ship or on a platform at sea.
Air Traffic Control Service (ATC Service)
A service provided for the purpose of:
a. preventing collisions between:
• aircraft;
• aircraft and obstacles; and
• aircraft and vehicles on the manoeuvring area; and
b. expediting and maintaining an orderly flow of air traffic.
Controlled Aerodrome
An aerodrome at which an air traffic control unit is in operation.
Flight Service Station
An Air Traffic Service (ATS) unit established to provide selected flight services.
General Aviation Communications (GAC)
, Communications relating to all civil aviation operations other than for scheduled air
service and nonscheduled air transport operations for remuneration or hire.
Ground Control Communications
ATC Service communications provided for the purposes of:
a. preventing collisions on the manoeuvring area between aircraft, and between aircraft
and obstacles or vehicles; and
b. expediting and maintaining the orderly flow of aircraft operating on the manoeuvring
area.
Private Advisory Service
A communication service offered at controlled aerodromes for use in connection with
company business such as the servicing of aircraft, availability of fuel, lodging, etc.
Such services shall not include information relating to ATC Service, weather reports, the
condition of landing strips, or any other communication normally provided by ATC
Service units.
Private Multiple Station
An aircraft or aeronautical station established to provide air-ground multipurpose
communications of an operational nature.
ACKNOWLEDGE
Let me know that you have received and understood this message.
AFFIRM
An expression used in radiocommunication meaning "Yes."
BREAK
Indicates the separation between portions of the message. (To be used where there is
no clear distinction between the text and other portions of the message.)
CLEARED
Authorized to proceed under the conditions specified.
CONFIRM
Have I received the following ... or Did you receive the message?"
CORRECTION
An error has been made in this transmission (or message indicated). The correct
version is ....
DISREGARD
Consider this transmission as not sent.
GO AHEAD
Proceed with your message.
HOW DO YOU READ?
What is the readability of my transmission?
I SAY AGAIN
An expression used in radiocommunication meaning "I repeat for clarity or emphasis."
MAYDAY
An expression meaning "I am in distress." It is the international radiotelephony distress
signal. Preferably spoken three times, it indicates imminent and grave danger and
means that immediate assistance is requested.
MAYDAY RELAY
The spoken word for the distress relay signal.
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