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

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ทดสอบอีกครั้ง

คำถามที่ 1/50

90:00 นาที

How can a SART's detection and effective range be maximized?

A. The SART should be held or mounted as high as possible and in a vertical position.

B. The SART should be placed in water immediately so it will begin transmitting.

C. Switch the SART into the "high" power position.

D. If possible, the SART should be mounted horizontally so that its signal matches that of the searching radar signal.

คำถามที่ 2/50

90:00 นาที

At what point does a SART begin transmitting?

A. It immediately begins radiating when placed in the "on" position.

B. If it has been placed in the "on" position, it will respond when it has been interrogated by a 9-GHz radar signal.

C. It must be manually activated or water activated before radiating.

D. If it has been placed in the "on" position, it will begin transmitting immediately upon detecting that it is in water.

คำถามที่ 3/50

90:00 นาที

A SART's signal cannot be detected:

A. In poor visibility, or at night.

B. In heavy seas.

C. By a search vessel's 10 cm Radar.

D. By a search vessel's 3 cm Radar.

คำถามที่ 4/50

90:00 นาที

Why should functional testing of a SART be minimized?

A. Potential interference with safe navigation, notifying other vessels of an actual Distress and minimize power consumption.

B. Minimize power consumption of the battery and only test at sea to reduce potential interference or confusion.

C. Possibility of misinterpretation by other vessels as a Distress situation and only test in port to prevent potential interference with safe navigation or at-sea vessels.

D. Potential interference with safe navigation, possible misinterpretation of an actual Distress, minimizes draining the battery.

คำถามที่ 5/50

90:00 นาที

Which is NOT a valid maintenance and testing function for a SART?

A. Operational test with several vessels to determine effective transmitting range.

B. Inspection of container for apparent damage.

C. Inspect battery expiration date and the lanyard condition.

D. Brief operational test utilizing own ship's radar.

คำถามที่ 6/50

90:00 นาที

Which of the following statements concerning satellite EPIRBs is true?

A. The coded EPIRB signal identifies the nature of the Distress situation.

B. The coded EPIRB signal only identifies the vessel's name and port of registry.

C. If the GMDSS Radio Operator does not program the EPIRB, it will transmit default information such as the follow-on communications frequency and mode.

D. Once activated, these EPIRBs transmit a signal for use in identifying the vessel and for determining the position of the beacon.

คำถามที่ 7/50

90:00 นาที

What statement is true regarding 406 MHz EPIRB transmissions?

A. Transmits a unique hexadecimal identification number.

B. Allows immediate voice communications with the RCC.

C. Coding permits the SAR authorities to know if manually or automatically activated.

D. GMDSS Radio Operator programs an I.D. into the SART immediately prior to activation.

คำถามที่ 8/50

90:00 นาที

Which of the following is normally part of 406 MHz satellite EPIRBs?

A. A strobe light, automatic float-free bracket, 1-watt 406-MHz alert beacon.

B. A 5-watt 406-MHz alert beacon, Automatic Hydrostatic Release (ARM), strobe light.

C. Automatic float-free bracket, 5-watt 121.5 MHz homing beacon, strobe light.

D. Automatic Hydrostatic Release (ARM), 1-watt 121.5 MHz alerting beacon, strobe light.

คำถามที่ 9/50

90:00 นาที

Which device provides the best method to locate a ship in Distress or survival craft in the GMDSS?

A. Satellite EPIRBs

B. Radio Direction Finder

C. MF/HF DSC

D. VHF homing device

คำถามที่ 10/50

90:00 นาที

Which statement is NOT true regarding the requirements of survival craft portable two-way VHF radiotelephone equipment?

A. Watertight to a depth of 1 meter for 5 minutes.

B. Operates simplex on Ch-70 and at least one other channel.

C. Effective radiated power should be a minimum of 0.25 Watts.

D. The antenna is fixed and non-removable.

คำถามที่ 11/50

90:00 นาที

The determination that the Distress traffic is over is usually made by whom?

A. The vessel in Distress.

B. The “On Scene Coordinator” and/or the RCC controlling the Distress traffic.

C. The first Coast Station to receive the DSC Distress alert.

D. Other vessels after nothing has been heard for some time.

คำถามที่ 12/50

90:00 นาที

On Scene communications are usually initiated using what equipment?

A. EPIRB on 121.5 MHz

B. SART on 9 GHz

C. VHF on Ch-16

D. VHF on Ch-70

คำถามที่ 13/50

90:00 นาที

Which statement is false regarding the COSPAS-SARSAT system and EPIRB operations?

A. The EPIRB’s position is calculated by the system and passed to the MCC.

B. The EPIRB transmits a unique Hex I.D. and vessel position that may be passed to the RCC.

C. The EPIRB’s position and Hex I.D. is passed instantaneously to the RCC.

D. The EPIRB transmits a unique Hex I.D. that is passed to the RCC if it cannot be determined to be inadvertent by the MCC.

คำถามที่ 14/50

90:00 นาที

Which GMDSS equipment is best suited to simultaneous long-range communications with an RCC/coast station and OSC vessels or SAR aircraft?

A. MF-HF SITOR (NBDP) transmitters using telex follow on frequencies.

B. Inmarsat Signals routed via the RCC to the SAR vessels & aircraft under their control.

C. VHF transmitters to reach SAR aircraft and OSC vessels as well as the RCC/coast station.

D. MF-HF SSB transmitters using voice follow-on frequencies.

คำถามที่ 15/50

90:00 นาที

Which statement is NOT true regarding an Inmarsat Distress Alert?

A. USCG coast stations will receive the alert and immediately notify the correct RCC.

B. The operator selection of LES will determine which associated RCC will receive the alert.

C. If the operator selects an invalid or inoperative LES code the NCS for that service will intercept the call and reroute the alert.

D. If the LES choice is not updated properly the Distress Alert might be routed to a non-optimum RCC, introducing delays and confusion into the Distress situation.

คำถามที่ 16/50

90:00 นาที

What should a GMDSS Radio Operator do if a NAVTEX warning message is received but it contains too many errors to be usable?

A. Contact the NAVAREA coordinator and request a repeat broadcast.

B. Initiate a request for Category A, B, L and D messages.

C. Do nothing. Vital NAVTEX messages will be repeated on the next scheduled broadcast.

D. Listen to appropriate VHF weather channel for repeat warnings.

คำถามที่ 17/50

90:00 นาที

Which of these cannot happen when a paper model NAVTEX receiver runs out of paper?

A. The unit is unable to print messages and all subsequent MSI broadcasts may be missed until the paper is replaced.

B. It may give off either an audible and/or visual alarm.

C. MSI messages may be missed because the unit cannot print them out.

D. The system will automatically change from receiving MSI by NAVTEX to receiving it by SafetyNETTM so that no messages will be lost.

คำถามที่ 18/50

90:00 นาที

What statement is true regarding the control the operator can exercise over the NAVTEX receiver's operation?

A. The operator can set the unit to automatically reject any and all categories of messages if the ship desires to not receive them.

B. Upon entering a coastal area for the first time, the operator enters code KK to indicate "ready to receive NAVTEX".

C. The operator can set most units to reject all messages except navigation, meteorological warnings, and search and rescue messages. If the unit will reject such messages it may be unsafe to do so.

D. To reduce the number of messages, the operator can select code 00 to indicate "not in coastal passage".

คำถามที่ 19/50

90:00 นาที

Which messages are mandatory to be received and should not typically be rejected or disabled by the operator of a NAVTEX receiver?

A. Meteorological warnings, SAR information, Pilot Service Messages.

B. Meteorological warnings, meteorological forecasts, navigational warnings.

C. SAR information, navigational warnings, ice reports.

D. Navigational warnings, meteorological warnings, SAR information.

คำถามที่ 20/50

90:00 นาที

How are NAVTEX broadcasts transmitted?

A. Using FEC techniques.

B. NAVTEX is transmitted by commercial coast radio stations following their traffic lists.

C. NAVTEX is transmitted only when an Urgency or Distress broadcast is warranted.

D. No more often than every two hours and should immediately follow the radiotelephone silent periods.

คำถามที่ 21/50

90:00 นาที

What determines whether a NAVTEX receiver prints a particular type of message content from a programmed NAVTEX station?

A. The serial number and type of message have already been received but additional printouts are generated to ensure receipt aboard the vessel.

B. The serial number and type of message has not been previously received or the subject indicator has not been programmed for rejection.

C. The subject indicator has been programmed for rejection by the operator but the message contains a priority override print command.

D. The transmitting station ID covering your area has been programmed for rejection by the operator or has not been previously received.

คำถามที่ 22/50

90:00 นาที

Which information determines if a NAVTEX message is to be rejected?

A. Transmitter identity (numerals from 1 to 26 identifying transmitting station within the NAVAREA).

B. The second letter (from A to Z) in the header indicating the type of message.

C. The Answerback of the receiving station has not been entered in the NAVTEX receiver.

D. Only messages having a serial number 00 are rejected.

คำถามที่ 23/50

90:00 นาที

NAVTEX broadcasts are sent:

A. Immediately following traffic lists.

B. On request of maritime mobile stations.

C. In categories of messages indicated by a single letter or identifier.

D. Regularly, after the radiotelephone silent periods.

คำถามที่ 24/50

90:00 นาที

What system can provide an automated service in coastal waters where it may not be feasible to establish the NAVTEX service or where shipping density is too low to warrant its implementation?

A. AMVER

B. VHF DSC

C. ARQ SITOR (NBDP)

D. SafetyNETTM

คำถามที่ 25/50

90:00 นาที

SafetyNETTM. messages can be received by which of the following shipboard equipment?

A. NAVTEX

B. MF and HF SITOR (NBDP)

C. Inmarsat F77 EGC receiver

D. Inmarsat-C EGC receiver

คำถามที่ 26/50

90:00 นาที

Maritime Safety Information is promulgated via satellite through which system?

A. SafetyNETTM

B. AMVER

C. NAVTEX

D. Inmarsat-M SES

คำถามที่ 27/50

90:00 นาที

Which satellite system promulgates Maritime Safety Information?

A. AMVER

B. NAVTEX

C. Inmarsat-C SafetyNETTM

D. Inmarsat-M SES

คำถามที่ 28/50

90:00 นาที

To receive all mandatory MSI using the SafetyNETTM. system the vessel must:

A. Log-in and ensure the position is accurate to receive MSI for the NAVAREA the vessel is currently within.

B. Notify the NAVAREA coordinator you are using SafetyNETTM for the receipt of MSI (Maritime Safety Information).

C. Set the receiver to your destination Inmarsat Ocean Region.

D. Notify the NAVAREA coordinator you are using SafetyNETTM for the receipt of MSI (Maritime Safety Information) and set the receiver to your destination Ocean Region.

คำถามที่ 29/50

90:00 นาที

In using SafetyNETTM. for the receipt of MSI (Maritime Safety Information):

A. Only unscheduled Urgency and Distress messages will be received if the Inmarsat-C SES is not logged in.

B. All of these answers are correct.

C. Both scheduled MSI and unscheduled Urgency and Distress messages will be received if the Inmarsat-C SES is logged in.

D. The Inmarsat-C SES must have Enhanced Group Calling (EGC) capability to receive MSI.

คำถามที่ 30/50

90:00 นาที

What services are available through Enhanced Group Calls?

A. Maritime Safety Information and vessel traffic lists.

B. Hourly NOAA weather broadcasts from the NWS.

C. Maritime Safety Information and messages to pre-defined groups of subscribers.

D. Coastal weather broadcasts.

คำถามที่ 31/50

90:00 นาที

Setting the squelch control to just beyond the point where the background noise disappears results in:

A. Maximum sensitivity without background noise.

B. Reduced sensitivity without background noise.

C. Minimum background noise with reduced sensitivity.

D. Greater bandwidth without background noise.

คำถามที่ 32/50

90:00 นาที

The “Scan” function is used to:

A. Monitor Ch-16 continuously and switching to either Ch-70 or Ch-13 every 5 seconds.

B. Sequentially scan all or selected channels.

C. Scan Ch-70 for Distress alerts.

D. None of the above.

คำถามที่ 33/50

90:00 นาที

Setting the squelch control to the end of its range without any noise being heard results in:

A. Less background noise

B. Minimum sensitivity

C. Maximum sensitivity

D. Does not have any effect on the sensitivity.

คำถามที่ 34/50

90:00 นาที

Proper and legal VHF operations require all of these except?

A. The channel must be designated as valid for the nature or type of communications desired.

B. Simplex, duplex and alpha channel modes must be correctly selected.

C. The correct bandwidth must be selected by the operator.

D. The power level must be appropriately chosen by the operator.

คำถามที่ 35/50

90:00 นาที

Describing VHF transmissions as "line of sight" does not mean:

A. Vessel antenna height will not affect the radius of propagation.

B. The normal transmission range to a coast station is approximately is 10 NM.

C. Coast station antenna height has no effect on the radius of transmission.

D. VHF communications are effective only with nearby stations within visual range of the bridge.

คำถามที่ 36/50

90:00 นาที

The effectiveness of VHF communications is maximized by:

A. Appropriate setting of the transmitter power, selecting an appropriate channel & adjustment of squelch for maximum receiver sensitivity.

B. The adjustment of squelch for maximum receiver sensitivity, setting transmitter power to 1W & selecting an appropriate channel.

C. Selecting an appropriate channel, adjustment of squelch for minimum receiver sensitivity & setting transmitter power to 1W.

D. Selecting an appropriate channel, adjustment of squelch for minimum receiver sensitivity, setting transmitter power to 25W.

คำถามที่ 37/50

90:00 นาที

What channel would you use for routine communications with the U.S.C.G.?

A. Ch-16

B. Ch-80

C. Ch-22A

D. Ch-13

คำถามที่ 38/50

90:00 นาที

What channel would you use to place a call to a shore telephone?

A. Ch-16

B. Ch-70

C. Ch-06

D. Ch-28

คำถามที่ 39/50

90:00 นาที

What channel is always being continuously monitored?

A. Ch-70

B. Ch-28

C. Ch-80

D. Ch-16

คำถามที่ 40/50

90:00 นาที

Which of the following channels may be used for duplex communications?

A. Ch-70

B. Ch-26

C. Ch-5A

D. Ch-22A

คำถามที่ 41/50

90:00 นาที

Which of the following statements is true?

A. You should always use the “INT” setting for calling a Public Correspondence station.

B. Using the “USA” setting changes certain channels from duplex to simplex operation.

C. You should use Ch-22 when calling the U. S. Coast Guard.

D. Using the “INT” setting will prevent proper Ch-13 Bridge-to-Bridge operations.

คำถามที่ 42/50

90:00 นาที

The USA-INT control on VHF units:

A. Selects duplex operations for U.S. coastal waters and simplex operations in non-U.S. waters, on the "alpha" channels.

B. Ensures that the “alpha” channels are correctly set to duplex for use in U.S. waters & on VTS channels.

C. Changes selected international duplex channels to simplex channels for use in U.S. waters, on the "alpha" channels.

D. Changes selected international simplex channels to duplex channels for use in U.S. waters, on the "alpha" channels.

คำถามที่ 43/50

90:00 นาที

The USA-INT control on VHF units:

A. Was made necessary by a desire for more duplex channels in the U.S.

B. Correctly set, will result in duplex operations in U.S. Coastal waters on the "alpha" channels.

C. Correctly set, will result in simplex operations in U.S. Coastal waters on the "alpha" channels.

D. Was made necessary by a desire to convert simplex international channels to duplex channels in the U.S.

คำถามที่ 44/50

90:00 นาที

What would happen if your VHF is set to “INT” and you called a VTS that operates on an “alpha” channel?

A. The coast station should hear your call and respond and you will be able to receive VTS instructions.

B. The coast station will not hear your call but you will hear their responses to other vessels in the VTS area.

C. You will be able to hear the coast station calling you but will not be able to hear other vessels in the VTS area.

D. The coast station should hear your call and respond but you will not hear their response.

คำถามที่ 45/50

90:00 นาที

To send a Distress alert use the following procedure:

A. Initiate a menu call to select Ch-16 for voice communications.

B. Use the “Distress Hot Key” in an appropriate manner.

C. Always insert the nature of the Distress first.

D. Make a voice Mayday call on Ch-16 before any other action.

คำถามที่ 46/50

90:00 นาที

DSC Urgency priority calls may be sent using the “Distress Hot Key” under the following circumstances:

A. If no additional information is required to be transmitted.

B. Under NO circumstances.

C. Only if the position information is correct.

D. The “Distress Hot Key” can be programmed for either Urgency or Distress as required.

คำถามที่ 47/50

90:00 นาที

What would be the appropriate channel selection for follow-on voice communications for a Routine priority call to another vessel?

A. Ch-70

B. Ch-16

C. Ch-22

D. Ch-08

คำถามที่ 48/50

90:00 นาที

What actions will take place upon receipt of a Routine call from another vessel if both vessels are programmed for automatic response and the ECC is no good?

A. Some portion of the call particulars will appear on the screen and the channel will not change.

B. The ECC alarm will sound and the watch officer should call back to determine the working frequency.

C. The ECC alarm will sound and the channel will change but the watch officer should ensure it is legal.

D. The channel will not change because the working frequency requested is illegal.

คำถามที่ 49/50

90:00 นาที

What precautions should be taken when reviewing previously transmitted messages?

A. Press the “Call” key when finished.

B. Always save the message.

C. Take steps not to accidentally send the message again.

D. No precautions are necessary.

คำถามที่ 50/50

90:00 นาที

Which of the following statements on address book entries is not correct?

A. Shore based telephone numbers may be entered for automatic telephone calls ashore.

B. Address book entries can only be used to call shore stations.

C. Public Correspondence Stations may be entered.

D. A vessel’s name and MMSI number may be entered.

คุณยังตอบคำถามไม่ครบ : 50 ข้อ จาก 50 ข้อ

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