Section-e: Distress, Urgency & Safety Communications: Key Topic #30: Follow-On Voice Transmission:

30E1 If a VHF-DSC Distress alert is transmitted what channel is used for follow-on voice transmission?

A. Ch-12

B. Ch-70

C. Ch-13

D. Ch-16

30E2 If a MF-DSC Distress alert is transmitted what frequency is used for follow-on voice transmission?

A. 2182.0 kHz

B. 2760.0 kHz

C. 2187.5 kHz

D. 2174.5 kHz

30E3 If a HF-DSC Distress alert is transmitted what frequency is used for follow-on voice transmission?

A. 8376.5 kHz

B. 8291.0 kHz

C. 8401.5 kHz

D. 8201.0 kHz

30E4 What is the proper format for a Distress follow on voice transmission? (3x is three times),

A. All Ships 3x, this is Ship's Name/Call Sign 3x, Ship's position, nature of distress and assistance requested.

B. Mayday 3x, this is Ship's Name/Call Sign once, Ship's position, nature of distress and assistance requested.

C. Mayday 3x, this is Ship's Name/Call Sign 3x, Ship's position, nature of distress and assistance requested.

D. All Stations 3x, this is Ship's Name/Call Sign 3x, Ship's position, nature of distress and assistance requested.

30E5 What information should be included in a Distress follow on voice transmission after a DSC Alert?

A. Ship's Name and Call Sign, MMSI number, DSC frequency used and any other information that might facilitate rescue.

B. Ship's position, Ship’s IMN, the nature of distress and assistance requested.

C. Ship's Name and Call Sign, MMSI number & position, the nature of distress and assistance requested.

D. Ship’s Name and Call sign, repeat IMN, provide any other information that might facilitate rescue.

30E6 What information is not vital in a Distress follow on voice transmission after a DSC Alert?

A. Ship's position, nature of distress and assistance requested.

B. Ship's Name, Call Sign and MMSI number.

C. Physical description of the vessel and number of POB.

D. Company emergency contact information.

Answers: 30E1 - D 30E2 - A 30E3 - B 30E4 - C 30E5 - C 30E6 - D

Section-e: Distress, Urgency & Safety Communications: Key Topic #31: Response to a Distress Alert:

31E1 Which statement is true regarding the receipt and acknowledgement of actual Distress follow-on communications by GMDSS ship stations?

A. Ship stations in receipt of Distress alert should not defer acknowledgement for a short interval, so that receipt may be acknowledged by the coast station.

B. A Coast station has the sole obligation to respond. A ship station should wait for the Coast station MMSI DSC Acknowledgment before taking action. If a Coast station has no response in 15 minutes the ship should DSC acknowledge and inform the RCC.

C. A ship station that receives a Distress call from another vessel must, as soon as possible, inform the Master or person responsible for the ship of the contents of the Distress communications received.

D. Alerts concerning navigational hazards are second only to Safety traffic.

31E2 What is meant by the acronym “EOS" in a DSC message?

A. Error Of Sequence

B. End Of Signals

C. Equal Operating Signals

D. End Of Sequence

31E3 What is the proper procedure to be followed upon receipt of a Distress alert transmitted by use of Digital Selective Calling techniques?

A. Set watch on the radiotelephone Distress and Safety frequency associated with the Distress and Safety calling frequency on which the Distress alert was received.

B. Set watch on the DSC alerting frequency in the band of frequencies the alert was received.

C. Set a continuous watch on VHF-FM Channel 13, 16 and DSC on Channel 70.

D. Ship stations equipped with narrow-band direct-printing equipment should respond to the Distress alert as soon as practicable by this means.

31E4 What is meant by the acronym “ECC" in a DSC message?

A. Every Cipher Counted

B. Error Check Character

C. Error Cannot Confirm

D. Even Characters Counted

31E5 What action should be taken on receipt of a DSC Distress alert?

A. Read the display screen and/or printout, silence the alarm, always call the Master to confirm the alert is real.

B. Silence the alarm, read the display screen and/or printout and listen for any follow on transmissions.

C. Listen for any follow on voice/TELEX transmission on the appropriate DSC frequency.

D. Silence the alarm, read the display screen and/or printout, only call the Master if the alert is within 500 NM.

31E6 What action should be taken if a Distress alert is received on the 12 MHz DSC frequency?

A. Use DSC to acknowledge/relay the alert using the 12 MHz DSC frequency.

B. Do nothing. Ship is too far away to render assistance.

C. Set the transceiver to 12290.0 kHz simplex J3E emission.

D. Set the transceiver to 12520.0 kHz simplex F1B/J2B emission.

Answers: 31E1 - C 31E2 - D 31E3 - A 31E4 - B 31E5 - B 31E6 - C