Materi GMDSS

GMDSS – GOC

1.      
What will most likely happen if a
satellite  elevation become very
small?  A.
communication through satellite will likely become difficult or impossible to
estabilish.

2.       What is
the fundamental concept of the GMDSS?  A. It is intended to automate and improve emergency
communication in the maritime industry

3.       Which of
the following statements concerning SARTs is false….? a.
Once it has been placed in the “ON” position, a SART will begin transmitting
immediately upon detecting what itnis in the water.

4.       What is
the proper procedure to be followed upon receipt of a distress alert transmitted
by use of Didital Selective  Calling
Technique?  d.
Set watch on the Radio Telephone Distress and Safety frequency associated with
the distress and safety calling frequency on which the distress alert was
received.

5.       Which
statement is the True regarding the COSPAS – SARSAT system?  a. EPIRBs are used as satellite beacons
aboard vessels as alerting devices   b.
Signal received by the Low Altitude near polar Orbit satellite are relayed to a
ground receiving station, Caled a Local User Terminal.   c. Dropler shift is used to locate the
beacons.  d. All
of this

6.       GMDSS
equipped vessels must maintain a continuous DSC watch on 2187,5 kHz.: a. At all time when underway

7.       DSC used
primarily to: a. Transmit and receive distress and
safety alert from other ships and shore station via radio

8.       Which
statement is correct? A. FEC mode broadcasts can be
received without the transmitter being turned on.  B. FEC requests are acknowledged by the
vessels  transmitter before broadcasts ca
be received.  C. Weather broadcasts are
always made in ARQ  mode  d. None Of This

9.       The sea
area of you in is determined by: a. the type of Coast
Station you are in communication range of.. b. The vessel’s distance
from shore.  C. The type of maintenance
available to your vessel.. d.
None of theme

10.   How can a
SART’s effective range be maximized? A. The SART should
be held as high as possible.

11.   What
signal is used to allow a scanning receiver to stop and detect in MF or HF DSC
Distress message… ? 200 Bit 100 baud dot pattern is
received

12.   If a GMDSS
radio operator in initiates a DSC Distress transmision but those not insert a
message what happen..? The transmision will be made
with default information provided automically

13.   What
causes the SART to begin a transmision? B. After being
activated either manually or automatically, the SART responds to radar
integration.

14.   Which of
the following statements concerning INMARSAT is true? A. The system relies upon
a highly directional signal that is transmitted to the satellite.   B. Shipboard Obstructions can cause
shadowing to both inbound and outbound satellite signals.   C. Telex communications may be possible when
voice call may be impossible.    D. All of the above.

15.   Which
statement is FALSE regarding a Distress request?   A. Any distress request
is automatically switched to an INMARSAT distress working frequency

16.   Which of
the following statements concerning COSPAS – SARSAT is true?  A. EPIRBs are units that are used as alerting
device.  B. These are satellites in a
low-earth polar Orbit that detec EPIRB 
beacons on 406 MHz and relay the information to an earth-side Local User
Terminal (LUT).   C. All of the above

17.   What means
is used to avoid mutual interference by station in the navitec system? .. d.Transmission by station in
each NAVAREA are arranged in time-sharing basis

18.   What
statement is true  regarding the exchange
between to parties enganged in NBDP communication?.. c.in
ARO, the sending station transmit a block of three characters and the receiving
station responds with either a One Character acknowledgement of the receive of
a valid block or a negative acknowledgement indicating that the block should be
resend following this the transmiting station will send a new block or
re-transmit the previous  block as
required

19.   Which of
the following statements concerning distress alert is true?  D. Information
contained in a distress alert includes the name and position of the distressed
vessel, and may include additional information such as the

20.   Which the
following statement concerning locating signal in the GMDSS is False..? Locating signal are transmitted by survival craft VHF
transreceivers

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