Restricted Operator Certificate - Aeronautical (ROC-A)
Questions With Complete Solutions
The order of priority for transmission of messages in the
aeronautical service is: correct answer: 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 correct answer: 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 correct answer: 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 correct answer: A mobile station in the
aeronautical service, other than a survival craft, located on board
an aircraft.
Aeronautical Operational Control Communications (AOCC)
correct answer: Communications related to the regularity of
flight.
Aeronautical Station correct answer: 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) correct answer: 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 correct answer: An aerodrome at which
an air traffic control unit is in operation.
Flight Service Station correct answer: An Air Traffic Service
(ATS) unit established to provide selected flight services.
, General Aviation Communications (GAC) correct answer:
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 correct answer: 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 correct answer: 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 correct answer: An aircraft or
aeronautical station established to provide air-ground
multipurpose communications of an operational nature.
ACKNOWLEDGE correct answer: Let me know that you have
received and understood this message.
AFFIRM correct answer: An expression used in
radiocommunication meaning "Yes."
Questions With Complete Solutions
The order of priority for transmission of messages in the
aeronautical service is: correct answer: 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 correct answer: 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 correct answer: 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 correct answer: A mobile station in the
aeronautical service, other than a survival craft, located on board
an aircraft.
Aeronautical Operational Control Communications (AOCC)
correct answer: Communications related to the regularity of
flight.
Aeronautical Station correct answer: 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) correct answer: 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 correct answer: An aerodrome at which
an air traffic control unit is in operation.
Flight Service Station correct answer: An Air Traffic Service
(ATS) unit established to provide selected flight services.
, General Aviation Communications (GAC) correct answer:
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 correct answer: 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 correct answer: 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 correct answer: An aircraft or
aeronautical station established to provide air-ground
multipurpose communications of an operational nature.
ACKNOWLEDGE correct answer: Let me know that you have
received and understood this message.
AFFIRM correct answer: An expression used in
radiocommunication meaning "Yes."
