GMDSS Standards of Training, Certification and Watchkeeping for Seafarers (STCW) General Operator's Certificate (GOC) FCC Element 7 Practice Test

These questions are part of the practice quiz. Start practicing

• Which statement is true about J2B mode?
• Which system is least affected by atmospheric disturbances?
• ECC stands for what in a DSC message?
• Which emission mode occupies the most bandwidth?
• Which statement is FALSE regarding the GMDSS requirement for ship sources of energy?
• Proper watchkeeping includes which of the following?
• Which channel is designated for GMDSS Digital Selective Calling?
• Which MMSI indicates a ship station?
• Which statement describes how normal working conditions are restored on a SITOR (NBDP) frequency after radio silence?
• What is an advantage of an AIS SART signal when compared to a radar-based SART signal?
• Which reference should be consulted for information on the proper setup and use of GMDSS equipment?
• Which mode occupies the least bandwidth?
• What is the requirement for emergency and reserve power in GMDSS radio installations?
• If NAVTEX coverage is unavailable, which MSI reception option is allowed under GMDSS?
• Which of the following frequencies is NOT a DSC watch frequency?
• Where can GMDSS regulations pertaining specifically to U.S.-flag vessels be found?
• Which of the following would indicate an F77 terminal?
• What is the fundamental purpose of imposing radio silence?
• Which situation would normally use the Urgency priority?
• After sending a false Distress alert on 12577.0 kHz, what action should you take?
• Which of the following would indicate an F77 terminal?
• What equipment is used in or near the survival craft?
• What are the mandatory DSC watchkeeping bands/channels?
• Which of the following is included in the FCC documents required for international voyages according to Part 80?
• What is the purpose of Channel 70 in GMDSS?
• Which statement about HF DSC Distress watch channels on a compulsory vessel underway is true?
• Which equipment is typically used to transmit distress information via satellite?
• To cancel a Distress alert on the 12 MHz J3E frequency, which action is described?
• What is the typical call sign for a large container ship under the U.S. flag?
• Which statement accurately describes VHF Ch-16 watch requirements in an A1 sea area under Bridge-to-Bridge and VTS?
• How long must the radio log be retained on board before sending it to the shoreside licensee?
• If a HF-DSC Distress alert is transmitted what frequency is used for follow-on voice transmission?
• Which action is used to cancel a false Distress alert on the 8 MHz band?
• If a VHF-DSC Distress alert is transmitted what channel is used for follow-on voice transmission?
• DSC is used primarily to:
• What term is used to indicate a distress situation?
• Which of the following would indicate an Inmarsat-C terminal?
• Which of the following is a valid GMDSS maintenance option?
• Repetition of a DSC Distress alert is normally automatic if not acknowledged after a delay of:
• Which statement concerning maintenance requirements is FALSE?
• Which of the following are FCC requirements of the GMDSS?
• Which mode enables automatic digital calling for distress, safety and calling?
• Following the vessel MMSI in the Distress Alert sequence, what is transmitted next?
• If a Distress alert is received on the 12 MHz DSC frequency, what action should be taken?
• When does a SART begin transmitting?
• What are the conditions, under GMDSS, whereby a ship is NOT allowed to depart from any port?
• A vessel certified for service in Sea Area A3 is required to maintain a watch on:
• A SART signal cannot be detected by which radar?
• What action should a GMDSS Radio Operator take when a DSC Distress alert is received requesting J3E?
• Which term is defined as the back-up power source that provides power to radio installations for the purpose of distress and safety communications when main and emergency generators cannot?
• Which is the call sign for a U.S.C.G. coast station?
• In GMDSS communications, which type of message is typically conveyed using the voice designation 'Securite'?
• A TELEX message is received with the sender's ID 433863491. What terminal type most likely sent it?
• How many GMDSS radio maintainers must be carried aboard a compulsory vessel if At-Sea maintenance is used?
• Which sea area is defined as being within the coverage of an Inmarsat geostationary satellite with continuous alerting?
• Which MMSI number identifies a U.S. coast station in a DSC call scenario?
• Identify the MMSI assignment reference used for ship stations.
• Which statement is NOT true about a SART?
• Which of the following statements concerning GMDSS maintenance requirements is true?
• What describes the basic concept of the GMDSS?
• How many digits are in the MID?
• The primary frequency range used for terrestrial communications employing skywave propagation is which of the following?
• Which 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?
• Which combination correctly lists the proper follow-on frequencies/channels for VHF, MF and HF Distress alerts?
• Which statement about MMSI is true?
• What is the frequency range for Medium Frequency?
• Which statement describes frequency modulation?
• Which of the following numbers is a valid DSC call to a specific group of vessels?
• After sending a false or mistaken Distress alert on MF at 2182.0 kHz, what action should you take?
• Among the listed systems, which is most susceptible to fading or static interference?
• Which of the MF/HF DSC Distress watch frequencies are standard MF/HF Distress watch frequencies?
• Which system is least susceptible to fading or static interference?
• Which list correctly identifies the MF/HF DSC Distress watch frequencies?
• What is the frequency range for Ultra High Frequency?
• The Radiotelephone Urgency signal is:
• When sending a DSC call, under what condition is the vessel's position automatically included?
• What is the responsibility of compulsory GMDSS vessels?
• What is the signal transmitted in J2B mode?
• Which statement about the frequency ranges is correct?
• Which channel and mode should be used when initiating a Distress alert transmission?
• What is the most common type of MF-HF antenna?
• Which documents or publications are required by the FCC for GMDSS vessels on international voyages (other than the Great Lakes)?
• A vertical quarter wave antenna with a good ground connection will?
• The best way to test the MF-HF SITOR (NBDP) system is:
• If a GMDSS Radio Operator initiates a DSC Distress transmission but does not insert a message, what happens?
• Which statement describes VHF watch requirements in an A1 area with Bridge-to-Bridge and VTS, when monitoring Ch-13 and the VTS channel?
• Which emission mode occupies the least bandwidth?
• GMDSS primarily connects shore-based SAR authorities with ships in distress to coordinate response.
• In sea area A-3, maintenance provisions must include any two of the listed options.
• Which of the following would indicate an Inmarsat-C terminal?
• Which number would indicate a U.S. flag ship station?
• What sea area is defined as being within range of a shore-based MF station that provides continuous DSC alerting?
• Which of the following statements about the GMDSS reserves energy is true?
• Which phrase is used to end radio silence on a SITOR (NBDP) frequency?
• The transmit frequency of an MF/HF DSC Distress alert is determined by what?
• Which equipment can be used to receive Maritime Safety Information?
• Which statement BEST describes MF/HF Distress alert follow-on communications?
• When may a compulsory vessel NOT be allowed to leave port?
• A ship operating in sea area A-3 must have maintenance provisions: Any two of these are required.
• Which reference should be consulted to identify the name of a vessel based on its Maritime Mobile Service Identity?
• What type of station would be assigned the call sign WAB2174?
• Which of the following numbers indicates a U.S. flag ship station?
• In which scenario is abandonment most appropriate during a Distress?
• Which scenario would normally require the Safety priority?
• Which device is used to transmit a distress alert to satellites in the GMDSS?
• How many GMDSS radio maintainers must be carried aboard a compulsory vessel if the At-Sea maintenance method is used?
• In Ocean Area A1, a vessel must have a radio installation capable of transmitting ship-to-shore distress alerts from the position from which the ship is normally navigated.
• Which equipment utilizes satellite communications?
• The SART is interrogated by which radar frequency?
• Which statement is true regarding DSC equipment?
• The Urgency Priority should be used for:
• Which system is most likely to be affected by atmospheric disturbances?
• If a MF-DSC Distress alert is transmitted what frequency is used for follow-on voice transmission?
• Which emission designation is used for MF-HF voice signals?
• After sending a false Distress alert on Inmarsat-C, what action should you take?
• Which scenario would normally qualify for the Safety priority?
• Which of the following would indicate an Inmarsat-C terminal?
• A vessel certified for service in Sea Area A-2 is required to maintain watch on:
• Which phrase indicates that normal working conditions are restored after radio silence?
• Which of the following would indicate an EPIRB AIS SART terminal?
• Which statement is FALSE regarding the radio operator requirements for a GMDSS-equipped ship station?
• How often should the charge condition of RSE GMDSS batteries be checked?
• What is the most common type of antenna for GMDSS MF-HF?
• What periodic inspection is required to remain in compliance with the regulations regarding GMDSS ship radio station inspections?
• Where should the GMDSS radio log be kept on board ship?
• Which factor determines the required equipment carriage for GMDSS?
• What is the equipment carriage requirement for survival craft under GMDSS?
• The Safety priority should be used for which type of message?
• What does the MID signify?
• What is the standard length and content for MMSI numbers?
• What is defined as the area within the radiotelephone coverage area of at least one VHF coast station in which continuous alerting is available as defined by the GMDSS?
• Which MMSI identifies a ship station?
• Which frequency band would most likely provide reliable communications between two stations 100 miles apart?
• An EPIRB AIS SART terminal is typically identified by which number?
• Which organization transmits SEELONCE FEENEE to restore normal conditions after silence?
• SITOR (NBDP) equipment is a partial or alternate carriage requirement under GMDSS for vessels operating in which sea area(s)?
• How many HF frequencies are available for DSC Distress related calls?
• Which number indicates a ship station MMSI?
• Which of the following would indicate an F77 terminal?
• Which statement best describes a primary function of the antenna coupler/tuner?
• Which of the following statements is true regarding Distress alerting under GMDSS?
• What does the DSC control unit do if updated information is not inserted when initiating a DSC Distress alert?
• Which frequency range is used for Inmarsat safety communications in Distress alerting?
• What is the proper procedure upon receipt of a Distress alert transmitted by DSC techniques?
• Which statements describe the required GMDSS functions for vessels?
• What is defined as the area within the radiotelephone coverage area of at least one VHF coast station where continuous DSC alerting is available?
• DSC transmissions are received using what process?
• Which statement best describes the content of a Distress alert under GMDSS?
• How can vessel personnel detect the operation of a SART in its vicinity?
• How many total frequencies are available for DSC Distress alerting?
• Which of the following is NOT an Urgency priority scenario?
• Which frequencies and modes are allocated for Distress alerting in GMDSS?
• What is the purpose or function of the antenna coupler/tuner?
• If a vessel is engaged in local trade and never travels outside the range of a VHF shore station with continuous DSC alerting, what sea area is it operating in?
• In SITOR (NBDP), six signals can occupy the space of a single voice signal.
• What characteristics describe the GMDSS Reserve Source of Energy?
• Which statement is FALSE?
• How many sidebands are present in J3E mode?
• Upon receiving a Distress call from another vessel, what must the Master or person responsible for the ship be informed of as soon as possible?
• Which system is least susceptible to atmospheric disturbances?
• In J3E mode, how many sidebands are present?
• Which GMDSS functions must all compulsory vessels be capable of performing to meet IMO requirements?
• DSC transmissions are encoded using what error-detection method?
• What information should be included in a Distress follow on voice transmission after a DSC Alert?
• EOS stands for End Of Sequence in a DSC message. Which option correctly reflects this?
• After sending a false Distress alert on 8 MHz, what action should you take?
• Which number would indicate an Inmarsat-C terminal?
• Which GMDSS system utilizes terrestrial radio techniques?
• Which statement describes a functional or carriage requirement for compulsory vessels?
• Which would indicate a MOB AIS SART?
• The DSC Controller in GMDSS serves what function?
• Properly formatted MF-HF DSC transmissions can request which emissions for follow-on communications?
• Which service or maintenance functions may NOT be performed by the holder of a GMDSS Radio Operator License?
• Which system has the least effective radius of operation?
• What condition would NOT permit departure due to distress and safety concerns?
• What is usually the first step for a GMDSS Radio Operator to take when initiating a Distress priority message via Inmarsat?
• What is the purpose of Channel 70 in distress operations?
• For survival craft on vessels over 500 gross tons, which equipment carriage is required?
• Which action is part of proper watchkeeping when a Distress alert is received?
• Your ship received a Distress relay from a coast station on DSC frequency 2187.5 kHz. What action should you take?
• Within a single sea area, what is the primary reason GMDSS imposes carriage requirements for different radio subsystems?
• When the GMDSS Radio Operator hears 'Securite' spoken three times, what information should be expected?
• Which statement about alarm handling and proper watchkeeping is true?
• What equipment is programmed to initiate transmission of Distress alerts and calls to individual stations?
• DSC relays of distress alerts received from other ships should be performed only if which condition is met?
• Which statement correctly matches the emission designator to its typical band?
• What is the carrier?
• The Reserve Source of Energy must be independent of the ship's electrical system when used to power which equipment?
• How is radio silence imposed?
• Which number would indicate an Inmarsat-C terminal?
• Which frequencies are used for J3E distress communications?
• Which situation would NOT properly use the Urgency priority?
• In which sea areas must a GMDSS-equipped vessel maintain continuous DSC watch on 2187.5 kHz?
• For sea area A-1, which statement about maintenance sufficiency is correct?
• Which action is NOT an approved method to cancel a false Distress alert?
• In the MF-HF DSC Distress Alert sequence, which item follows the Distress priority code?
• Which information is essential to include in a Distress follow-on voice transmission after a DSC Alert?
• Which of the following statements about GMDSS log content is true?
• How many blips does the SART transmit in response to a radar interrogation?
• A TELEX message is received with the sender's ID 436640927. What terminal type most likely sent it?
• A DSC Distress alert will always be sent on which frequencies?
• Which combination correctly represents the watch requirements for Sea Area A3?
• What is the purpose of the initial string of dots in an MF-HF DSC Distress Alert transmission?
• What is the channel spacing for authorized F1B/J2B frequencies?
• A vessel equipped with GMDSS that remains in Sea Area A1 at all times must have which of the following?
• DSC relays of Distress alerts to a coast station should be avoided unless a DSC acknowledgement has not been heard.
• MF-HF DSC alerts are transmitted using what emission type?
• In SELCAL numbering, the number 1090 indicates which?
• Vessels operating in which sea area(s) are required to carry Inmarsat or HF equipment or a combination thereof under GMDSS?
• Which of the following would indicate an Inmarsat-C terminal?
• What is the fundamental concept of the GMDSS?
• What number will a ship station use to identify itself using SITOR (NBDP)?
• Which FCC license meets the requirement to serve as a GMDSS operator?
• For survival craft on vessels 500 gross tons and upwards, what combination of equipment is required?
• Endings .0 or .5 kHz on a frequency table indicate which emission?
• GMDSS vessels equipped for Sea Areas A2, A3 or A4 must maintain a continuous DSC watch on which frequency?
• Which sequence best describes an MF-HF DSC Distress Alert transmission?
• A vertical (whip) antenna has a radiation pattern best described by?
• What radar pattern indicates you are approaching a SART on radar and what action should you take?
• Demodulation is best described as which of the following?
• What information is NOT vital in a Distress follow on voice transmission after a DSC Alert?
• Which information is NOT vital in a Distress follow-on voice transmission after a DSC Alert?
• Which statement concerning the testing of a compulsory radiotelephone station is FALSE?
• How often must a compulsory vessel's GMDSS radio station be inspected?
• The SHF frequency range lies between which of the following?
• Which of the following would aid the detection of a SART's signal?
• Who is authorized to perform annual inspections of compulsory GMDSS radio stations?
• The DSC Controller in GMDSS is designed to perform which function?
• Under what circumstances might foreign governments inspect the radio installation?
• Which statement describes the relationship between Distress alerts and acknowledgments?
• Which statement best describes the radiation pattern of a vertical quarter-wave antenna with a good ground?
• On receipt of a DSC Distress alert, what action should be taken?
• Which statement about SART operation is true?
• If the Watch Officer hears 'PAN PAN' spoken 3 times it means:
• What advantage does a vertical whip have over a long wire?
• Under GMDSS, a compulsory VHF-DSC radiotelephone installation must be tested at what minimum interval at sea?
• GMDSS is required for which ships?
• A MMSI 030346239 indicates what?
• After sending a false or mistaken Distress alert on VHF, what action should you take?
• GMDSS is primarily a system based on what?
• Which statement about logkeeping is FALSE?
• Which maintenance function is NOT the responsibility of the GMDSS Radio Operator?
• Which statement is true regarding the maintenance of GMDSS equipment at sea?
• Which action is the most appropriate action for a GMDSS radio Operator to take in a Distress situation where immediate help is needed, but the vessel is not sinking nor needs to be abandoned?
• While underway, how frequently is the DSC controller required to be tested?
• Which mode transmits an upper sideband consisting of two alternating tones?
• GMDSS-equipped ships are required to be able to perform which of the following communications functions?
• If operating within Ocean Area A1 and outside NAVTEX coverage, a GMDSS-equipped vessel must carry which of the following?
• Which of the following statements about GMDSS maintenance options is correct?
• The best way to test the Inmarsat-C terminal is:
• Modulation is best described as which of the following?
• Which Sea Area lies outside Sea Areas A1, A2, and A3?
• Under international regulations, which ships are mandated to carry GMDSS equipment?
• Under 47 CFR 80 Subpart-W, which statement about GMDSS radio logs is correct?
• What does the MID stand for?
• The frequency range most suitable for moderate-range communications (around 100 miles) is which?
• Which number would indicate an Inmarsat-C terminal?
• What is the frequency range defined as Super High Frequency (SHF)?
• Which statement best describes a potential consequence of improperly relaying DSC Distress alerts?
• What determines the spares and maintenance materials requirements for GMDSS equipment?
• Which system provides global satellite-based communications with minimal susceptibility to atmospheric disturbances?
• What is Seelonce Mayday?
• Which organization must transmit the message that emergency traffic has concluded before routine communications can resume after radio silence?
• When can routine communications resume after radio silence has been imposed?
• In a DSC message, what does EOS stand for?
• Which of the following would indicate an Inmarsat-C terminal?
• What is the proper Distress follow-on format (including repetition)?
• Which MMSI is a valid group address for a DSC call?
• What does the 12-blip SART signal represent?
• AIS SART signals on AIS displays correspond to which symbol?
• The relay of DSC Distress alerts can quickly overburden the GMDSS systems in the vicinity with improperly transmitted or inappropriately relayed DSC calls.
• Which emission designation corresponds to VHF-FM?
• How many MF frequencies are available for DSC Distress related calls?
• Which of the following is a characteristic of the GMDSS Reserve Source of Energy?
• What are the three GMDSS functions that all compulsory vessels must be capable of performing?
• Under GMDSS, which organization coordinates distress traffic and may appoint another station to manage it?
• How many HF DSC Distress watch channels must be guarded by a compulsory vessel underway?
• What is the recommended action when receiving a DSC Distress alert to ensure proper handling of follow-on transmissions?
• At sea, all required equipment (other than Survival Craft Equipment) must be proven operational by:
• Which statement about radio log archival by the station licensee is true?
• At sea, which equipment is exempt from the daily proof of operation requirement?
• Which system has the smallest effective radius of operation?
• What is the minimum interval for a GMDSS station maintenance inspection by a license holder?
• Following the vessel position & time in the sequence, what is transmitted next?
• Which statement is true about the band usage of J3E?
• A valid MMSI number for a DSC call to a specific group of vessels is:
• Who must transmit the voice message 'SEELONCE FEENEE' to restore normal working conditions after radio silence has been imposed?
• Radar display changes indicate the correct approach to a SART and what care should be taken in a SAR situation?
• What statement is correct regarding the maintenance requirements for A3 ships under GMDSS?
• Which of the following is a ship station SELCAL?
• What indication is given to the personnel in a survival craft of the approach of SAR craft?
• Which acronym in DSC messaging denotes the error-check component used to validate message integrity?
• Which action best confirms operating readiness of the Inmarsat-C system?
• What is the channel spacing for MF-HF voice frequencies?
• Following a false Distress alert on the MF band, what is the required cancellation action?
• Which system provides accurate vessel position information to the GMDSS equipment?
• A DSC distress alert transmitted by a station on behalf of another vessel in distress should NOT occur under which condition?
• Which device is used to locate a survival craft using radar by providing an audible or visual indication when interrogated?
• What is the frequency range for High Frequency?
• Which statement best describes the purpose of having multiple radio subsystems within GMDSS?
• Which MMSI number indicates a U.S. flag ship station?
• Which statement is true regarding Distress communications under GMDSS?
• Who determines the spares and maintenance materials requirements for GMDSS equipment?
• Which step should be taken, if possible, when the vessel must be abandoned because of a Distress situation?
• What 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?
• Which situation would normally use the Urgency priority?
• Which option describes the cancellation method for an Inmarsat-C Distress alert?
• During an annual GMDSS station inspection, what might be required?
• Where should the GMDSS radio log be kept on board?
• What is the proper format for a Distress follow on voice transmission? (3x is three times)
• Which watch must a compulsory Sea Area A1 vessel maintain?
• What is transmitted in H3E mode?
• Who regulates GMDSS for U.S.-flag vessels?
• How does the searching vessel's radar interrogate a SART?
• How many frequencies are available under GMDSS for DSC Distress-related calls?
• Which of the following are required GMDSS functions?
• Which statement describes amplitude modulation?
• Which statement about SAR communications under GMDSS is correct?
• Which publication would you consult to identify the name of a vessel based on its MMSI assignments?
• WAB2174 is the call sign for which type of vessel?
• Which statement concerning MMSI is FALSE?
• What is the primary purpose of the GMDSS?
• Why is an antenna coupler/tuner required for MF-HF transmissions?
• Which publication should the GMDSS Radio Operator consult to review distress procedures under GMDSS?
• Which of the following is a ship station SELCAL?
• What term describes the back-up power source intended to support distress and safety communications when the vessel's main and emergency generators cannot?
• Which statement is true about J2B mode?
• What is the purpose of the antenna coupler/tuner for MF-HF transmissions?
• Which statement about GMDSS inspections is FALSE?
• What signal is detected as originating from an AIS SART and how is the signal displayed?
• Which system is used to receive Maritime Safety Information broadcasts at sea?
• Under which condition would you refrain from relaying a DSC Distress alert?
• Which references are required by Part 80 of the FCC rules for vessels on international voyages (other than the Great Lakes)?
• For a MF/HF DSC Distress alert which statement is FALSE?
• For vessels over 300 gross tons operating within range of a MF-DSC equipped shore station, how many maintenance options are required?
• Which statement regarding an MF/HF DSC Distress alert is true?
• Which is NOT part of the Sea Area A3 watch requirements?
• How many SITOR (NBDP) signals can occupy the space of one voice signal?
• When operating in coastal waters (Sea Area A1), a GMDSS-equipped vessel must:
• How can rescue personnel detect that a SART is transmitting in the immediate vicinity?
• Which call sign is assigned to a U.S. Coast Guard coast station?
• Which sea area is defined as lying outside Sea Areas A1, A2, and A3?
• Proper watchkeeping includes which of the following?
• The Radiotelephone Safety signal is:
• Which statement about a GMDSS-equipped ship is FALSE?
• How should a SART be positioned to maximize detection?
• Your ship received a Distress relay from a coast station on DSC VHF channel 70. What action should you take?
• Which of the following correctly lists the frequency ranges for MF, HF, VHF, and UHF in ascending order?
• Which system is used to receive Maritime Safety Information broadcasts?
• What is the frequency range for Very High Frequency?
• How many digits are in the Maritime Identification Digits?
• Which of the following would indicate a standard AIS SART?
• Under what condition would you not relay a DSC Distress alert?
• A DSC call is received from a station with a MMSI number of 003669991. What type of station made the call?
• What is the final element of the MF-HF DSC Distress Alert sequence?
• Which statement about the Urgency priority is true?
• Which situation is least likely to result in an inspection of the radio installation by foreign governments or administrations?
• SITOR (NBDP) equipment is required for vessels operating in which sea areas?
• Which statement best describes the license needed to perform or supervise GMDSS at-sea work?
• Which frequency is designated for On-scene Distress and Safety communications?