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Worksheetsgmdss5
Total questions: 52
Worksheet time: 39mins
The abbreviation of telephony mode of radiation using phase modulation is
F1B
F3E
G3E
P3E
What is the frequency, if the wavelength is 7.5 m?
22.5 MHz
40 MHz
25 MHz
2500 kHz
What is the wavelength, if the frequency is 4 MHz?
18 m
180 m
0.2 m
75 m
What is the approximate range of MF radio waves during the day time?
1200 nm
150 nm
2500 nm
30 nm
Are VHF radio waves reflected by the ionosphere?
Only by D-layer
Yes, by all layers
Not reflected
By D-layer and E-layer
How many navareas are there in the world?
12
14
16
21
How many pieces of Emergency VHF portable transceivers must a ship of 450 GT be provided with?
0
1
2
3
ITU-channel 608 means:
Channel No 60 from 8 MHz band
Channel No 08 from 6 MHz band
Channel No 06 – duplex, from VHF marine band
None of these
What is the frequency range for SHF?
30-300 GHz
300-3000 kHz
30-300 MHz
3-30 GHz
What is the frequency range for UHF?
3-30 MHz
300-3000 MHz
30-300 MHz
10-30 MHz
What is the frequency range for VHF?
3-30 MHz
300-3000 kHz
30-300 MHz
10-30 MHz
What is the primary frequency range for long distance skywave communications?
3 – 30 MHz
300 – 3000 kHz
30 – 300 MHz
None of these
What is the primary frequency range for long distance skywave communications?
3-30 MHz
300-3000 kHz
30-300 MHz
10-30 MHz
What is the frequency range for HF?
3-30 MHz
300-3000 kHz
30-300 MHz
10-30 MHz
What is the frequency range for MF?
30-300 kHz
300-3000 kHz
1,000-10,000 kHz
10-30 MHz
All stations are forbidden to carry:
The transmissions of signals without identification
The transmissions of superfluous signals and correspondence
The transmissions of false or misleading signals
All of these
What is the frequency range for MF?
30-300 kHz
300-3000 kHz
1,000-10,000 kHz
10-30 MHz
Which of the following is the call sign for a Bulgarian coast station?
NERK
KPH
LZW
WCC
What publication/s should a GMDSS Operator consult regarding the proper set-up and operation of vessel equipment?
IMO Conventions and Resolutions
ITU Publications
The manufacturer's instruction manuals
ALRS Publications
What publication/s should a GMDSS Operator consult regarding the proper set-up and operation of vessel equipment?
ITU Publications
The manufacturer's instruction manuals
Ship Safety Radio Certificate
At-sea service manual
Which of the following documents are required for vessels under GMDSS?
Ship Safety Equipment Certificate
List of Call Signs and Numerical Identities. (ITU List VII-A)
List of Radiodetermination and Special Service Stations. (ITU List VI)
All of these
Which of the following documents are required by GMDSS for passenger ships on international voyages?
IAMSAR manual v.3
Station radio-log
Manual for use by the MMS and MMSS
All of these
What is the minimum operator license required to perform or supervise the performance of at-sea adjustments, servicing or maintenance which may affect the proper operation of the GMDSS station?
Marine Radio Operator Permit
General Radiotelephone Operator license and Radar endorsement
Designated maintainer possessing a GMDSS Radio Operator license
GMDSS Radio Maintainer's license
What is a minimum operator license(or certificate) required to perform or supervise the performance of at-sea servicing, adjustments or maintenance which may affect the proper operation of the GMDSS station?
GMDSS General Operator’s license
GMDSS Radio Maintainer’s license
GMDSS Restricted Operator’s license
GMDSS Second-class Radioelectronic’s license
Which statement is false regarding the radio operator requirements for a GMDSS-equipped ship station?
One of the qualified GMDSS radio operators must be designated to have primary responsibility for radiocommunications during distress incidents
A qualified GMDSS radio operator, and a qualified backup, must be designated to perform distress, urgency and safety communications
Maintaining a record of all incidents connected with the radio-communications service that appear to be of importance to safety of life at sea is not required
While at sea, all adjustments or radio installations, servicing or maintenance of such installations that may affect the proper operation of the GMDSS station must be performed by, or under the supervision of, a qualified GMDSS radio maintainer
Which of the following is the minimum license requirement of a GMDSS Radio Operator?
Holding the Marine Radio Operator Permit is a pre-requisite before the GMDSS Radio Operator Endorsement can be obtained
Holding the General Radiotelephone Operator License with RADAR endorsement is sufficient
Holding a valid GMDSS Radio Operator license is sufficient
Holding either the General Radiotelephone Operator License or the First or Second Class Radiotelegraph license with GMDSS Radio Maintainer's endorsement is sufficient
What is the minimum requirement of a GMDSS radio operator?
Marine Radio Operator Permit and GMDSS Endorsement
General Radiotelephone Operator license and Radar endorsement
GMDSS Radio Operator license
General Radiotelephone license or First or Second Class Radiotelegraph license with GMDSS and Radio Maintainer's endorsement
Which of the following maintenance functions is not responsibility of the GMDSS radio operator?
Visual inspection of equipment, including the antenna and associated components
Perform on-the-air verification checks
Perform scheduled testing of the battery’s charged condition
Aligning the power output stage for maximum power
Which of the following log-keeping statements is true?
Entries relating to pre-voyage, pre-departure and daily tests are required
All distress, urgent and safety communications must be logged
Routine daily MF-HF and Inmarsat-C transmissions do not have to be logged
Both 1 and 2
How long must the radio log be retained on board before sending it to the ship-owner?
At least one year after the last entry
At least three years after the last entry
At least 90 days after the last entry
At least 30 days after the last entry
Where should the GMDSS radio log be kept on board ship?
Captain's office
Sea cabin
At the GMDSS operating position
Anywhere on board the vessel
Which of the following statements are true?
Key letters or abbreviations may not be used in GMDSS Radio Logbooks under any circumstances
Urgent communications do not need to be entered in the GMDSS radio log
Both 1 and 2
None of these
Which of the following statements concerning GMDSS Radio Operator requirements is false?
Each compulsory vessel must carry at least two licensed GMDSS Radio Operators at all times while at sea
Each compulsory vessel must carry at least two licensed GMDSS Radio Operators at all times while at sea and may elect to carry a GMDSS Radio Maintainer as well
Communications involving safety of life at sea do not have to be logged as long as the compulsory vessel was not involved in such communications
While at sea, adjustments to, and the maintaining of, GMDSS equipment may be performed by the GMDSS Radio Operator as long as the work is supervised by an on-board licensed GMDSS Radio Maintainer
Which of the following statements are true?
GMDSS Radio Logs are required to contain entries pertaining to all incidents connected with the radiocommunications service that appear to be of importance to the safety of life at sea
All distress communications must be entered in the GMDSS radio log
Both 1 и 2
None of these
Which ship’s document describes the number of EPIRBs onboard?
Safety Equipment Certificate
Form “E” supplementing Safety Equipment Certificate
Safety Radio Certificate
Form “R” supplementing Safety Radio Certificate
What service was established by IMO and IHO for the purpose of coordinating the transmission of navigational warnings to ships in co-ordinated geographical areas?
NAVAREAs
WWNWS
NAVTEX
MSI
Which statement is NOT true regarding the NAVTEX system?
NAVTEX is a single frequency broadcast system (using NBDP narrow band direct printing) TELEX on 518 kHz
A selective message-rejection feature of the receiver allows the mariner to receive only that safety information pertinent to his requirements
NAVTEX broadcasts in the prevailing language of the coast station and adjacent NAVAREAs
NAVTEX carries information relevant to all sizes and types of vessels within a region established for this service
Which statement is NOT true regarding the NAVTEX system?
NAVTEX is tailored for international sea commerce on or near main shipping lanes;
NAVTEX carries information relevant to all sizes and types of vessels within a region established for this service;
NAVTEX carries routine meteorological forecasts and warnings and other urgent safety information to ships
A selective message-rejection feature of the receiver allows the mariner to receive only that safety information pertinent to his requirements
What is the international direct-printing service for the promulgation of maritime safety information (MSI) in the English language pertaining to coastal waters up to about 400 miles offshore?
NAVAREA broadcasts
NOAA weather broadcast
HF facsimile
NAVTEX
Urgency and safety communications by NBDP should normally establish in:
ARQ mode
FEC mode
SELFEC mode
None of these
Which services are available through Enhanced Group Calls?
Maritime Safety Information and messages to pre-defined groups of subscribers
HF NBDP weather forecasts
NAVTEX broadcasts
Maritime Safety Information and vessel traffic lists
How many hours before sailing the NAVTEX receiver must be switched on to ensure receiving on all Maritime Safety Information?
Up to 4 hours
Up to 8 hours
Up to 12 hours
Up to 24 hours
NAVTEX Transmissions in simple English are sent on:
518 kHz, FEC mode
500 kHz, SELFEC mode
490 kHz, ARQ mode
None of these
MSI is sent by means of:
NAVTEX
Safety NET of EGC
HF-Radio telex
All of these
If the vessel is within range of NAVTEX broadcasts and both the Inmarsat-C and the NAVTEX receiver are inoperative the GMDSS operator should
Select 518 kHz ARQ on the MF/HF console to receive MSI
Request repairs of the Sat-C system and wait until within range of NAVTEX
Select an HF MSI frequency and ARQ telex mode to receive MSI
Select 518 kHz FEC telex on the MF/HF console to receive MSI
What number will a ship station use to identify itself using NBDP?
Four digit selcall
Five digit selcall or 9 digit MMSI number
7 digit Inmarsat-A I. D. number
9 digit Inmarsat-C I.D. number
Which one of the following is a ship station selcall?
11243
1104
1502352
230364973
What would the number 1090 indicate?
A ship MMSI number
A coast station MMSI number
A coast station selcall number
A ship station selcall number
FEC-mode means:
Characters are sent in groups containing 3 char. in group
Each character is followed by Control signal for checking
Each character is sent two times with interval
Non of these
ARQ-mode means:
Characters are sent in groups containing 3 char. in group
Each character is followed by Control signal for checking
Each character is sent two times with interval
Non of these
What is an indication of an out-of-paper condition on a NAVTEX receiver?
Unit ceases all operation until paper is replaced
Audible and/or visual alarm signal is displayed
External alarm, if fitted, is activated
All of these
Which statement is true of a NAVTEX receiver?
Reception is not available in Ocean Area A1
Operates on 518 kHz
One must transmit a request signal to initialize the coastal station
Receives distress transmission directly from ships operating in the same Ocean Area
