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PERFORMANCE CHECK AFS 2024

Total questions: 15

Worksheet time: 23mins

Name
Class
Date
1.

1.       An AFTN station whose primary function is the relay or retransmission of AFTN traffic from (or to) a number of other AFTN stations connected to it. The Definiton from..

a)

AFTN STATION

b)

AFTN SUB-COM MUNICATION CENTRE

c)

AFTN TRIBUTARY STATION

d)

AFTN COMMUNICATION CENTRE

2.

Based on ICAO Document 8400, abbreviation fo ATS Reporting Office is...

a)

ARO

b)

ATSRO

c)

ARP

d)

ARR

3.

An AFTN station whose primary function is the relay or retransmission of AFTN traffic from (or to) a number of other AFTN stations connected to it. The Definiton for.....

a)

AFTN STATION

b)

  AFTN SUB-COM MUNICATION CENTRE

c)

AFTN TRIBUTARY STATION

d)

AFTN COMMUNICATION CENTRE

4.

A telecommunication service between specified fixed points provided primarily for the safety of air navigation and for the regular, efficient and economical operation of air services. the definition for...

a)

Aeronautical Fixed Telecommunication Network

b)

Aeronautical Fixed Service

c)

Aeronautical Fixed Station

d)

Aeronautical Telecommunication Station

5.

What is The Definition of Tributary station?

a)

A station selected from those forming an enroute air-ground radiotelephony network to communicatewith or to intercept communications from aircraft innormal conditions.

b)

An aeronautical fixed station that may receive or transmit messages and/or digital data but which does not relay except for the purpose of serving similar stations connected through it to a communication centre.

c)

A land station in the aeronautical mobile service. In certain instances, an aeronautical station may be located, for example, on board ship oron a platform at sea.

d)

an aeronautical fixed station which relays or retransmits telecommunication traffic from (or to)a number of other aeronautical fixed stations directly connected to it.

6.

A worldwide system of aeronautical fixed circuits provided, as part of the aeronautical fixed service, for the exchange of messages and/or digital data between aeronautical fixedstations having the same or compatible communications characteristics. It is the definition for...

a)

Aeronautical Fixed Station

b)

Aeronautical Fixed Telecommunication Service

c)

Aeronautical Fixed Telecommunication Networking

d)

Aeronautical Fixed Telecommunication Network

7.

How many categories of Messages shall be handled by AFTN?

a)

10

b)

6

c)

8

d)

12

8.

What is the priority indicator of Flight Regularity Messages?

a)

FF

b)

GG

c)

DD

d)

KK

9.

movement and control messages, messages originated by an aircraft operating agency of immediate concern to aircraft in flight or preparing to depart, meteorological messages restricted to SIGMET information, special air-reports, AIRMET messages, volcanic ash and tropical cyclone advisory information and amended forecasts. These are contain of messages from..

a)

Flight Regularity Messages

b)

Flight Safety Messages

c)

Aeronautical Information Service Messages

d)

Meteorological Messages

10.

messages concerning the safety of a ship, aircraft or other vehicles, or of some person on board or within sight..

a)

DD

b)

SS

c)

FF

d)

GG

11.

Copies of all messages, in their entirety,transmitted by an AFTN origin station shall be retained for..

a)

31 Days

b)

No Longer than 30 Days

c)

30 Days

d)

At least 30 days

12.

message category shall comprise those messages sent by mobile stations reporting that they are threatened by grave and imminent danger and all other messages relative to the immediate assistance required by the mobile station in distress

a)

Urgency Messages

b)

Flight Regularity Message

c)

Flight Safety Messages

d)

Distress Messages

13.

Short-term retention of AFTN traffic records, AFTN communication centres shall retain, for a period..

a)

2 Hours

b)

24 Hours

c)

1 Hours

d)

At Least 1 Hour

14.

Three-digit channel-sequence numbers AFTN.

a)

001 to 000 (representing 1 000)

b)

000 to 000 (representing 1000)

c)

001 to 999

d)

000 to 999

15.

The Message Format of International Telegraph Alphabet No.2 (ITA2) Is....

a)

Starting Pulse, Heading, Origin,Text, Ending

b)

Heading, Address, Origin, Text, Ending

c)

ZCZC, Address, Origin, Text, Ending

d)

Heading, Origin, Text, Ending