NBTC ONE STOP SERVICE

แบบฝึกหัดพนักงานวิทยุคมนาคมประเภทจำกัดเขตเดินเรือทะเล(ROC)

แบบฝึกหัดพนักงานวิทยุสมัครเล่น

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แบบฝึกหัดพนักงานวิทยุคมนาคมประเภททั่วไปประจำเรือ (GOC)

หมวดที่ 1. General Information and System Overview และ Principles of Communications

หมวดที่ 2. F.C.C. Rules & Regulations และ DSC & Alpha-Numeric ID

หมวดที่ 3. Distress, Urgency & Safety Communications และ Section-F: Survival Craft Equip & S.A.R

หมวดที่ 4. VHF-DSC Equipment & Communications และ Maritime Safety Information (M.S.I.)

หมวดที่ 5. Inmarsat Equip. & Communications และ MF-HF Equip. and Communications

แบบฝึกหัดพนักงานวิทยุคมนาคมประเภทจำกัดเขตเดินเรือทะเล (ROC)

หมวดที่ 1. General Information and System Overview และ F.C.C. Rules & Regulations

หมวดที่ 2. DSC & Alpha-Numeric ID Systems และ Distress, Urgency & Safety Communication

หมวดที่ 3. Survival Craft Equip & S.A.R, Maritime Safety Information (M.S.I.) และ VHF-DSC Equipment & Communication

เฉลย

ทดสอบอีกครั้ง

คำถามที่ 1/50

90:00 นาที

The primary purpose of the GMDSS is:

A. Allow more effective control of SAR situations by vessels.

B. Automate and improve emergency communications for the world's shipping industry.

C. Provide additional shipboard systems for more effective company communications.

D. Effective and inexpensive communications.

คำถามที่ 2/50

90:00 นาที

GMDSS is primarily a system based on:

A. Ship-to-ship Distress communications using MF or HF radiotelephony.

B. VHF digital selective calling from ship to shore.

C. Distress, Urgency and Safety communications carried out by the use of narrow-band direct printing telegraphy.

D. The linking of search and rescue authorities ashore with shipping in the immediate vicinity of a ship in Distress or in need of assistance.

คำถามที่ 3/50

90:00 นาที

What is the responsibility of compulsory GMDSS vessels?

A. Every vessel must be able to perform communications functions essential for its own safety and the safety of other vessels.

B. Vessels must transmit a DSC distress relay upon receipt of a DSC distress alert.

C. Only the vessels closest to a Distress incident must render assistance.

D. Vessels must immediately acknowledge all DSC distress alerts.

คำถามที่ 4/50

90:00 นาที

What equipment utilizes satellite communications?

A. Inmarsat-C

B. VHF-MF-HF

C. NAVTEX

D. SART

คำถามที่ 5/50

90:00 นาที

What equipment is programmed to initiate transmission of Distress alerts and calls to individual stations?

A. NAVTEX

B. GPS

C. DSC Controller

D. DSC Scanning Watch Receiver

คำถามที่ 6/50

90:00 นาที

What system provides accurate vessel position information to the GMDSS equipment?

A. COSPAS-SARSAT

B. EPIRB

C. GPS

D. Inmarsat-B

คำถามที่ 7/50

90:00 นาที

Which of these can be used to receive MSI?

A. SART

B. EPIRB

C. Inmarsat-B

D. NAVTEX

คำถามที่ 8/50

90:00 นาที

If a vessel is on a voyage from Miami, Florida to Houston, Texas what Sea Areas may it transit through?

A. Sea area A3 if it is beyond range of a MF-DSC equipped coast station.

B. Sea area A2 or A3 if it is not within range of a VHF-DSC equipped coast station.

C. Sea area A1 only if within range of a VHF-DSC equipped coast station.

D. All of these answers may be correct depending on coast station DSC coverage.

คำถามที่ 9/50

90:00 นาที

If a vessel is engaged in local trade and at no point in its voyage travels outside the range of a VHF shore station with continuous DSC alerting then the vessel is operating in what area?

A. Sea area A1

B. Coastal and international zones

C. Inland and coastal waters

D. Sea areas A1 and A2

คำถามที่ 10/50

90:00 นาที

For a vessel to be in GMDSS Sea Area A-1:

A. The vessel must be within VHF range of a Public Correspondence Station.

B. The vessel must be within range of a coast station equipped with continuous VHF-DSC capability.

C. The vessel must be within VHF range of a U. S. C. G. communication station.

D. The vessel must be within VHF range of either a U. S. C. G. or a Public Correspondence Station.

คำถามที่ 11/50

90:00 นาที

A vessel is on a coastwise voyage that results in a distance off shore of 10 to 40 nm and therefore:

A. The vessel must be able to communicate with a coast station on Ch-16 to be within Sea Area A-1.

B. To be within Sea Area A-1 the vessel must continuously be within range of a coast station with VHF-DSC capability.

C. The vessel will always be in Sea Area A-1because all coastal voyages have A-1 DSC coverage.

D. To be within Sea Area A-1 the vessel must continuously be within range of a coast station with MF-DSC capability.

คำถามที่ 12/50

90:00 นาที

Which GMDSS communication functions must all compulsory vessels be capable of performing to meet International Maritime Organization requirements?

A. Distress alerting and receipt of MSI in Sea Areas A1, A2, A3, and A4 regardless of the vessel's intended area of operation.

B. Distress alerting and receipt of Maritime Safety Information via Inmarsat for all vessels intending to operate in Sea Area A4.

C. Distress alerting, general communications and receipt of Maritime Safety Information in the vessel's intended area of operation.

D. General communications via Inmarsat and receipt of Maritime Safety Information via Enhanced Group Calling in Sea Area A4.

คำถามที่ 13/50

90:00 นาที

GMDSS-equipped ships will be required to perform which of the following communications functions?

A. Distress alerting, MSI, SAR and on-scene communications & receipt of satellite alerts from other vessels.

B. SAR and on-scene communications, Bridge-to-Bridge and general radio communications, MSI and relay of satellite alerts from other vessels.

C. Bridge-to-Bridge and general radio communications, RDF of EPIRB homing signals, Distress alerting and MSI.

D. Transmit distress alerts, SAR and on-scene communications, MSI, Bridge-to-Bridge and general radio communications.

คำถามที่ 14/50

90:00 นาที

Which of the following are required GMDSS functions for vessels?

A. Transmit and receive locating signals, general communications and SAR communications.

B. Transmit and receive general communications, transmit Distress Alerts by at least one means, MSI.

C. Transmit and receive locating signals, send MSI to other ships via EGC, Bridge-to-Bridge communications.

D. Transmit and receive SAR communications, transmit Distress Alerts by at least one means, Bridge-to-Bridge communications.

คำถามที่ 15/50

90:00 นาที

All passenger vessels must have what additional equipment?

A. Inmarsat-B terminal

B. Inmarsat-C terminal

C. Aircraft Transceiver with 121.5 MHz

D. MF-HF SSB Transceiver

คำถามที่ 16/50

90:00 นาที

Within a single sea area, what is the primary reason GMDSS imposes carriage requirements for different radio subsystems?

A. Redundancy in duplicating all operational functions in the event of a system failure.

B. Different subsystems are required to meet the specific equipment carriage requirements of national authorities.

C. GMDSS vessels must be equipped to communicate in all modes with coast radio stations.

D. The combined capabilities of redundant subsystems mitigate the risk of a single point of failure.

คำถามที่ 17/50

90:00 นาที

If operating within Ocean Area A1, and outside of NAVTEX coverage, a GMDSS-equipped vessel must carry:

A. Equipment capable of reception of Maritime Safety Information by the Inmarsat enhanced group call system, or HF SITOR (NBDP).

B. A GPS receiver.

C. Equipment capable of maintaining a continuous DSC watch on 2187.5 kHz.

D. An Inmarsat-B terminal.

คำถามที่ 18/50

90:00 นาที

What statement is correct regarding the maintenance requirements for A3 ships under GMDSS?

A. If the vessel selects at-sea maintenance no additional parts and spares are required.

B. On-board maintenance provided by a person holding a GMDSS Maintainer's license will fully meet the requirements.

C. Redundancy of functions of certain equipment and on-board maintenance provided by a person holding a GMDSS Maintainer's license will partially meet this requirement.

D. Shoreside maintenance and scheduled tests and inspections will not partially meet this requirement.

คำถามที่ 19/50

90:00 นาที

A ship operating exclusively in sea area A-1 must have the following provisions for maintenance:

A. Carry an on-board maintainer plus duplication of equipment.

B. Shore maintenance may not be selected.

C. Only one option for maintenance is required.

D. Must always select duplication of equipment to maximize safety.

คำถามที่ 20/50

90:00 นาที

A ship operating in sea area A-1 must have the following provisions for maintenance:

A. Shore maintenance.

B. Duplication of equipment.

C. At Sea Maintenance.

D. Any one of these is sufficient.

คำถามที่ 21/50

90:00 นาที

What is the frequency range for High Frequency?

A. 300-3,000 kHz

B. 30-300 MHz

C. 10-30 MHz

D. 3-30 MHz

คำถามที่ 22/50

90:00 นาที

What is the frequency range for Very High Frequency?

A. 30-300 MHz

B. 3-30 MHz

C. 300-3,000 kHz

D. 10-30 MHz

คำถามที่ 23/50

90:00 นาที

What is the frequency range for Ultra High Frequency?

A. 3-30 MHz

B. 300-3,000 MHz

C. 30-300 MHz

D. 10-30 MHz

คำถามที่ 24/50

90:00 นาที

What is the frequency range for Super High Frequency?

A. 30-300 GHz

B. 3-30 GHz

C. 300-3,000 MHz

D. 30-300 MHz

คำถามที่ 25/50

90:00 นาที

What is the frequency range for Maritime VHF operations?

A. 3-30 MHz

B. 88-108 MHz

C. 156-164 MHz

D. 540-1640 kHz

คำถามที่ 26/50

90:00 นาที

What periodic inspection is required in order to remain in compliance with the regulations regarding GMDSS ship radio station inspections?

A. U.S. Coast Guard annual inspection.

B. FCC inspection every five years.

C. An inspection at least once every 12 months by the FCC or a holder of a GMDSS Maintainers license.

D. Periodic inspections not required if on board maintainers perform routine preventive maintenance.

คำถามที่ 27/50

90:00 นาที

Which statement is false regarding a GMDSS-equipped ship?

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

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

คำถามที่ 28/50

90:00 นาที

Which statement is false regarding a GMDSS equipped ship?

A. 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.

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

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

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

คำถามที่ 29/50

90:00 นาที

During an annual GMDSS station inspection:

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

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

C. 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.

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

คำถามที่ 30/50

90:00 นาที

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

A. These are located in CCIR #476.

B. These are located in 47 CFR Part 80.

C. These are located in FCC Part 83.

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

คำถามที่ 31/50

90:00 นาที

What publications should the GMDSS Radio Operator consult to review the proper procedures to be followed in Distress situations under GMDSS?

A. The manufacturer’s technical manuals.

B. The manufacturer's operator manuals.

C. 47 CFR Part 80 Subpart W.

D. 47 CFR Part 90 Subpart V.

คำถามที่ 32/50

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 Ship Stations and Maritime Mobile Service Identity Assignments.

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

D. ITU Master Plan of Shore-Based Facilities.

คำถามที่ 33/50

90:00 นาที

When may a compulsory vessel not be allowed to leave port?

A. When the vessel has replaced a required piece of GMDSS-related equipment but its performance has not been verified or logged.

B. When the vessel is in an over-carriage condition.

C. When the vessel has arranged for both duplication of equipment and shore-based maintenance.

D. When the vessel is carrying only two licensed GMDSS Radio Operators and is capable of performing all required functions.

คำถามที่ 34/50

90:00 นาที

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

A. 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.

B. 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.

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 35/50

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

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

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

คำถามที่ 36/50

90:00 นาที

What are the conditions, under GMDSS, whereby a ship is NOT allowed to depart from any port?

A. The vessel is carrying more than the required number of qualified GMDSS radio operators.

B. The vessel has a temporary waiver of its radio license and Safety Certificate.

C. The vessel is not capable of performing all required Distress and Safety functions.

D. The vessel is not carrying a GMDSS radio maintainer, but has provided for shoreside maintenance plus duplication of equipment if required.

คำถามที่ 37/50

90:00 นาที

What determines the spares and maintenance materials requirements for the VHF-DSC equipment under GMDSS?

A. 47 CFR Part 80

B. IMO Circular "Equipment Spares".

C. The GMDSS Maintainer's requirements.

D. The recommendations of the manufacturer.

คำถามที่ 38/50

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. 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.

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

คำถามที่ 39/50

90:00 นาที

Which FCC license meets the requirements to perform or supervise the performance of at-sea adjustments, servicing, or maintenance which may affect the proper operation of the GMDSS station?

A. GMDSS Operator’s/Maintainer’s license or GMDSS Maintainer’s license.

B. General Radiotelephone Operator’s License with Shipboard RADAR endorsement.

C. Marine Radio Operator’s Permit or GMDSS Maintainer’s license.

D. GMDSS Radio Operator’s license or Marine Radio Operator’s Permit.

คำถามที่ 40/50

90:00 นาที

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

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

B. 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.

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 41/50

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

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

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

คำถามที่ 42/50

90:00 นาที

How many GMDSS radio maintainers must be carried aboard a compulsory vessel if the At-Sea maintenance method is used?

A. Two in Sea Areas A3 and A4.

B. Two in Sea Area A1.

C. One regardless of sea area of operation.

D. None of these answers are correct.

คำถามที่ 43/50

90:00 นาที

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

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

B. 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.

C. 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.

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

คำถามที่ 44/50

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. Ship's standby generator

D. Reserve Source of Energy

คำถามที่ 45/50

90:00 นาที

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

A. Once a month

B. Twice a week

C. Once a week

D. Once a day

คำถามที่ 46/50

90:00 นาที

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

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

B. Testing at least every 48 hours.

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

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

คำถามที่ 47/50

90:00 นาที

Proper watchkeeping includes the following:

A. Understanding normal operational indicators, setting the DSC scanner frequencies to minimize alarms, maintaining a proper log.

B. Maintaining a proper GMDSS radio station log, understanding normal operational indicators, responding to and comprehending alarms.

C. Responding to and comprehending alarms, logging out of Inmarsat-C terminals while at sea, maintaining a proper GMDSS radio station log.

D. Maintaining a proper GMDSS radio station log, setting the DSC scanner frequencies to minimize alarms, logging out of Inmarsat-C terminals while at sea.

คำถามที่ 48/50

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 49/50

90:00 นาที

Which of the following statements meets requirements for 47 CFR 80 Subpart-W?

A. GMDSS Radio Logs may not be retained aboard compulsory vessels in an electronic file (e.g., word processing) format.

B. GMDSS Radio Logs must be retained aboard compulsory vessels for a period of at least 90 days in their original form.

C. Entries in the GMDSS Radio Log are only required for communications within the vessel's intended Sea Area of operation.

D. GMDSS Radio Logs must contain entries of all Distress and Urgency communications affecting your own ship.

คำถามที่ 50/50

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

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

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

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