NBTC ONE STOP SERVICE

A. A conditional or partial exemption may be granted, in exceptional circumstances, for a single voyage outside the sea area for which the vessel is equipped.

B. The regulations apply to all passenger ships regardless of size and cargo ships of 300 gross tons and upwards.

C. Ships must have the required equipment inspected at least once every five years.

D. Ships must carry at least two persons holding a GMDSS Radio Operator's license for Distress and Safety radio-communications purposes.

คำถามที่ 3/50

90:00 นาที

Which statement is false regarding a GMDSS equipped ship?

A. Ships must have the required equipment inspected at least once every 12 months.

B. The regulations apply to all passenger ships regardless of size and cargo ships of 300 gross tons and upwards.

C. Ships must carry at least two persons holding a GMDSS Radio Operator's license for Distress and Safety radio-communications purposes.

D. A conditional or partial exemption may not be granted, in exceptional circumstances, for a single voyage outside the sea area for which the ship is equipped.

คำถามที่ 4/50

90:00 นาที

During an annual GMDSS station inspection:

A. All required documents and publications might have to be produced and GMDSS operators may be required to demonstrate equipment competencies.

B. Licensed GMDSS operators may not be required to demonstrate equipment competencies but all required equipment must be fully operational.

C. All required equipment must be fully operational and any required publications that are not current must be on order.

D. GMDSS operators may be required to demonstrate equipment competencies and any of required equipment that is not fully operational can be repaired at the next port of call as long as there is functional duplication.

คำถามที่ 5/50

90:00 นาที

Where can GMDSS regulations pertaining specifically to U.S.-flag vessels be found?

A. These are located in 47 CFR Part 80.

B. These are located in CCIR #476.

C. These are located in FCC Part 83.

D. These are published only by the U.S. Coast Guard.

คำถามที่ 6/50

90:00 นาที

Which of the following documents or publications are required by Part 80 of the FCC rules for vessels on international voyages (other than the Great Lakes)?

A. Appropriate Safety Convention Certificate, ITU Master Plan of GMDSS Coast stations, and ITU manual for Maritime Mobile stations.

B. ITU Master Plan of GMDSS Coast stations, ITU manual for Maritime Mobile stations, ITU List IV & List V.

C. ITU List IV & List V, Appropriate Safety Convention Certificate & ITU manual for Maritime Mobile stations.

D. ITU List IV & List V, Appropriate Safety Convention Certificate & IMO manual for Maritime Mobile stations.

คำถามที่ 7/50

90:00 นาที

Which of the following references should be consulted to identify the name of a vessel based on its Maritime Mobile Service Identity?

A. ITU list of Coast Stations.

B. ITU List of Radio-determination and Ship Stations.

C. ITU Master Plan of Shore-Based Facilities.

D. ITU List of Ship Stations and Maritime Mobile Service Identity Assignments.

คำถามที่ 8/50

90:00 นาที

Which statement is false regarding the maintenance of GMDSS equipment at sea?

A. The GMDSS maintainer may not be the person designated to have primary responsibility for radio-communications during Distress incidents even if licensed as an operator.

B. Ships must carry at least one person who qualifies as a GMDSS maintainer for the maintenance and repair of equipment if the at-sea maintenance option is selected.

C. All at-sea maintenance and repairs must be performed by, or under the supervision of a person holding a GMDSS Maintainer license.

D. The GMDSS maintainer may be the person responsible for ensuring that the watches are properly maintained and that the proper guard channels and the vessel's position are entered into the DSC equipment.

คำถามที่ 9/50

90:00 นาที

Which of the following service or maintenance functions may NOT be performed by the holder of a GMDSS Radio Operator License?

A. Reset tripped circuit breakers or replace defective fuses.

B. Any adjustments or maintenance that may affect the proper operation of the station.

C. Routine battery maintenance if used as part of the GMDSS station.

D. Replacement of consumable items such as paper, ribbons, etc.

คำถามที่ 10/50

90:00 นาที

Which of the following statements concerning GMDSS Radio Operator requirements is false?

A. Each compulsory vessel must carry at least two licensed GMDSS Radio Operators at all times while at sea.

B. 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.

C. All communications involving Safety of life at sea must be logged as long as the compulsory vessel was not involved in such communications.

D. 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.

คำถามที่ 11/50

90:00 นาที

Which statement is false regarding the radio operator requirements for a GMDSS-equipped ship station?

A. 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.

B. One of the qualified GMDSS radio operators must be designated to have primary responsibility for radio-communications during Distress incidents.

C. A qualified GMDSS radio operator, and a qualified backup, must be designated to perform Distress, Urgency and Safety communications.

D. 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.

คำถามที่ 12/50

90:00 นาที

Which of the following are personnel, functional, or equipment FCC requirements of the GMDSS?

A. One FCC licensed GMDSS radio operator in sea areas A1 & A2, two FCC licensed GMDSS radio operators in sea areas A3 & A4 and equipment carriage based on intended sea area of operations.

B. Distress alerting and response, two USCG STCW GMDSS watchstanders, equipment carriage based on intended sea area of operations.

C. Equipment carriage reduced for sea areas A3 & A4, Distress alerting and response and two FCC licensed GMDSS radio operators.

D. Equipment carriage based on intended sea area of operations, distress alerting and response and two FCC licensed GMDSS radio operators.

คำถามที่ 13/50

90:00 นาที

What is the meaning of “Reserve Source of Energy”?

A. High caloric value items for lifeboat, per SOLAS regulations.

B. Power to operate the radio installation and conduct Distress and Safety communications in the event of failure of the ship's main and emergency sources of electrical power.

C. Diesel fuel stored for the purpose of operating the powered survival craft for a period equal to or exceeding the U.S.C.G. and SOLAS requirements.

D. The diesel fueled emergency generator that supplies AC to the vessel’s Emergency power bus.

คำถามที่ 14/50

90:00 นาที

Which term describes the source of energy required to supply the GMDSS console with power if the ship’s source of main or emergency energy fails?

A. Emergency power

B. Ship's emergency diesel generator

C. Reserve Source of Energy

D. Ship's standby generator

คำถามที่ 15/50

90:00 นาที

What is the requirement for emergency and reserve power in GMDSS radio installations?

A. Compulsory ships must have emergency and reserve power sources for radio communications.

B. An emergency power source for radio communications is not required if a vessel has proper reserve power (batteries).

C. A reserve power source is not required for radio communications.

D. Only one of the above is required if a vessel is equipped with a second 406 EPIRB as a backup means of sending a Distress alert.

คำถามที่ 16/50

90:00 นาที

While underway, how frequently is the DSC controller required to be tested?

A. Once a week

B. Once a day

C. Twice a week

D. Once a month

คำถามที่ 17/50

90:00 นาที

At sea, all required equipment (other than Survival Craft Equipment) must be proven operational by:

A. Testing at least every 48 hours.

B. Weekly testing of all S.C.E. and other compulsory equipment.

C. Daily testing or daily successful use of the equipment.

D. Daily testing of the S.C.E. and weekly tests of the other equipment.

คำถามที่ 18/50

90:00 นาที

The best way to test the MF-HF SITOR (NBDP) system is:

A. Make a radiotelephone call to a coast station.

B. Initiate an ARQ call to demonstrate that the transmitter and antenna are working.

C. Initiate an ARQ call to a Coast Station and wait for the automatic exchange of answerbacks.

D. Initiate an FEC call to demonstrate that the transmitter and antenna are working.

คำถามที่ 19/50

90:00 นาที

A vessel certified for service in Sea Area A-2 is required to maintain watch on:

A. 2174.5 kHz

B. 2182.0 kHz

C. 2738.0 kHz

D. 2187.5 kHz

คำถามที่ 20/50

90:00 นาที

Proper watchkeeping includes the following:

A. Monitoring all required frequencies in the proper mode, setting the DSC scanner to 2 MHz, 4 MHZ and 8 MHz for ships in the vicinity, notifying the Master of any Distress alerts.

B. After silencing an alarm all displays and/or printouts are read, monitoring all required frequencies in the proper mode, notifying the Master of any Distress alerts.

C. Notifying the Master of any Distress alerts, setting the DSC scanner to 2 MHz, 4 MHZ and 8 MHz for ships in the vicinity, monitoring all required frequencies in the proper mode.

D. Setting the DSC scanner only to the mandatory 2 MHz & 8 MHz, maintain continuous watch on 2182.0 kHz or 4125.0 kHz, notify the Master of any Distress traffic heard.

คำถามที่ 21/50

90:00 นาที

Which is true concerning a required watch on VHF Ch-16?

A. When a vessel is in an A1 sea area and subject to the Bridge-to-Bridge act and in a VTS system, a watch is required on Ch-16 in addition to both Ch-13 and the VTS channel.

B. It is not compulsory at all times while at sea until further notice, unless the vessel is in a VTS system.

C. When a vessel is in an A1 sea area and subject to the Bridge-to-Bridge act and in a VTS system, a watch is not required on Ch-16 provided the vessel monitors both Ch-13 and the VTS channel.

D. It is not always compulsory in sea areas A2, A3 and A4.

คำถามที่ 22/50

90:00 นาที

Where should the GMDSS radio log be kept on board ship?

A. Captain's office

B. Sea cabin

C. Anywhere on board the vessel.

D. At the GMDSS operating position.

คำถามที่ 23/50

90:00 นาที

How long must the radio log be retained on board before sending it to the shoreside licensee?

A. At least 30 days after the last entry.

B. At least one year after the last entry.

C. At least two years after the last entry.

D. At least 90 days after the last entry.

คำถามที่ 24/50

90:00 นาที

Which statement concerning radio log archival by the station licensee is false?

A. Retain for two years if there are no Distress entries.

B. Logs related to an investigation may not be destroyed without specific authorization.

C. Retain for three years if there are Distress entries.

D. Retain for one year unless there are Distress or Urgency entries.

คำถามที่ 25/50

90:00 นาที

Which of the following logkeeping statements is false?

A. Entries of all company communications using GMDSS satellite equipment are required.

B. Entries relating to pre-voyage, pre-departure and daily tests are required.

C. A summary of all Distress communications heard and Urgency communications affecting the station’s own ship. Also, all Safety communications (other than VHF) affecting the station’s own ship must be logged.

D. Entries related to failures of compulsory equipment are required.

คำถามที่ 26/50

90:00 นาที

What would the number 1090 indicate?

A. A ship DSC MMSI number.

B. A coast station SITOR (NBDP) SELCAL number.

C. A coast station DSC MMSI number.

D. A ship station SITOR (NBDP) SELCAL number.

คำถามที่ 27/50

90:00 นาที

What number will a ship station use to identify itself using SITOR (NBDP)?

A. Four digit SELCAL.

B. Five digit SELCAL or 9 digit SELCAL number identical to MMSI.

C. 9 digit Inmarsat-B I. D. number.

D. 9 digit Inmarsat-C I.D. number.

คำถามที่ 28/50

90:00 นาที

How many digits are in the MID (Maritime Identification Digits)?

A. 3

B. 7

C. 9

D. 10

คำถามที่ 29/50

90:00 นาที

What does the MID (Maritime Identification Digits) signify?

A. Port of registry

B. Nationality

C. Gross tonnage

D. Passenger vessel

คำถามที่ 30/50

90:00 นาที

Which of the following numbers indicates a U.S. flag ship station?

A. 036627934

B. 243537672

C. 338426791

D. 003382315

คำถามที่ 31/50

90:00 นาที

Which of the following MMSI numbers indicates a U.S. flag ship station?

A. 430326890

B. 033609991

C. 303236824

D. 257326819

คำถามที่ 32/50

90:00 นาที

A MMSI 030346239 indicates what?

A. Group MMSI

B. Inmarsat-C I.D. number

C. Coast station

D. Ship station

คำถามที่ 33/50

90:00 นาที

Which of the following statements concerning MMSI is true?

A. Coast station MMSI numbers have 9 digits starting with 4.

B. All MMSI numbers are 9 digits and contain an MID.

C. Ship station MMSI numbers can be 7 digits or 9 digits depending on the Inmarsat terminal.

D. Group MMSI numbers must begin with 2 zeros.

คำถามที่ 34/50

90:00 นาที

Which of the following statements concerning MMSI is false?

A. All Coast Station MMSI must begin with 2 zeros.

B. All Coast Station MMSI must begin with the MID then 2 zeros.

C. A group call must begin with a single zero followed by the MID.

D. The first 3 digits of a ship MMSI comprise the MID.

คำถามที่ 35/50

90:00 นาที

Which of the following would indicate an F77 terminal?

A. 150036

B. 430364290

C. 1502460

D. 766832922

คำถามที่ 36/50

90:00 นาที

Which of the following would indicate an Inmarsat-B terminal?

A. 150036

B. 430363275

C. 1502460

D. 366632824

คำถามที่ 37/50

90:00 นาที

Which of the following would indicate an F77 terminal?

A. A 9 digit number always starting with 76.

B. A 12 digit number starting with the MID.

C. A 9 digit number ending with the MID.

D. A 9 digit number always starting with 4.

คำถามที่ 38/50

90:00 นาที

You receive a TELEX with the sender’s I.D. of 436640927. What type of terminal sent this message to your vessel?

A. F77 Fleet

B. Inmarsat-C

C. Land TELEX terminal

D. Inmarsat-M

คำถามที่ 39/50

90:00 นาที

Which of the following would indicate an Inmarsat-C terminal?

A. 003668202

B. 325468263

C. 436682433

D. 1500270

คำถามที่ 40/50

90:00 นาที

Which of the following would indicate an Inmarsat-C terminal?

A. A 9 digit number beginning with the MID.

B. A 9 digit number always starting with 4.

C. A 7 digit number.

D. A 9 digit number always starting with 3.

คำถามที่ 41/50

90:00 นาที

When sending a DSC call:

A. Vessel’s position will automatically be sent with DSC calls specifying an alternate frequency.

B. Vessel's position will automatically be sent if the vessel is sending a “Distress Hot Key” alert.

C. Vessel's MMSI will indicate its ocean region and vessel position.

D. Vessel’s MMSI and position will automatically be sent for all types of DSC calls.

คำถามที่ 42/50

90:00 นาที

DSC transmissions are encoded:

A. Using J3E mode for proper follow-on communications.

B. Using F1B mode to ensure proper reception.

C. Using a ten-bit error detecting code.

D. Using J2B mode for correct transmission.

คำถามที่ 43/50

90:00 นาที

DSC transmissions are received:

A. Using voice or TELEX modes as appropriate.

B. Using J3E or H3E modes as appropriate.

C. Using digital decoding by the DSC controller.

D. Using F1B and/or J2B decoding by the transceiver.

คำถามที่ 44/50

90:00 นาที

Properly formatted MF-HF DSC transmissions can request which of the following emissions for follow on communications?

A. J3E/H3E telex emissions

B. F1B/J2B voice emissions

C. J3E/F3E voice emissions

D. J3E/H3E voice emissions

คำถามที่ 45/50

90:00 นาที

What is the action that a GMDSS Radio Operator should take when a DSC Distress alert is received requesting J3E?

A. No action is necessary, as the DSC control unit will automatically switch to the SITOR (NBDP) follow-on communications frequency.

B. The Operator should immediately set continuous watch on VHF channel 70.

C. The Operator should immediately set continuous watch on the SITOR (NBDP) frequency that is associated with frequency band on which the Distress alert was received.

D. The Operator should immediately set continuous watch on the radiotelephone frequency that is associated with frequency band on which the Distress alert was received.

คำถามที่ 46/50

90:00 นาที

What does the DSC control unit do if the GMDSS Radio Operator fails to insert updated information when initiating a DSC Distress alert?

A. It will initiate the DSC Distress alert and default information will automatically be transmitted.

B. It will abort the transmission and set off an audible alarm that must be manually reset.

C. It will initiate the DSC Distress alert but, as no information will be transmitted, rescue personnel will not be able to identify the vessel, its position, or its situation.

D. It will initiate the DSC Distress alert, but any station receiving it will have to establish contact with the distressed vessel to determine its identity, position, and situation.

คำถามที่ 47/50

90:00 นาที

A DSC Distress alert:

A. Must always be sent on VHF Ch-70.

B. Will always be sent on one or more of the DSC Distress frequencies.

C. Must always be sent on MF 2 MHz plus one other HF DSC frequency.

D. Must always be sent on VHF Ch-70, then 2 MHz MF then 8 MHz HF.

คำถามที่ 48/50

90:00 นาที

Which of the following channels and modes should be used when initiating a Distress alert transmission?

A. Ch-6 DSC

B. Ch-6 Radiotelephony

C. Ch-70 DSC

D. Ch-13 Radiotelephony and Ch-16 DSC

คำถามที่ 49/50

90:00 นาที

Which of the following are the MF/HF DSC Distress watch frequencies

A. 2177.5, 4210.0, 6314.0, 8416.5 12579.0, 16806.5

B. 2182.0, 4125.0, 6215.0, 8291.0, 12290.0, 16420.0

C. 2174.5, 4177.5, 6268.0, 8376.5, 12520.0, 16695.0

D. 2187.5, 4207.5, 6312.0, 8414.5, 12577.0, 16804.5

คำถามที่ 50/50

90:00 นาที

How many HF DSC Distress watch channels must be guarded by a compulsory vessel underway.

A. 2

B. 3

C. 4

D. 6

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