SVOP Marine Communications and VHF Radio

Question 1

Which VHF channel is the international distress, safety, and calling channel?

Accepted Answer

Channel 16

Answer

Channel 6

Answer

Channel 22A

Answer

Channel 68

Question 2

What is the correct order of a distress call using the phonetic word 'MAYDAY'?

Accepted Answer

MAYDAY three times, vessel name three times, MAYDAY once, position, nature of distress, assistance needed, number of persons aboard

Answer

MAYDAY once, vessel name, position, nature of distress, assistance needed, number of persons aboard

Answer

MAYDAY twice, vessel name, MAYDAY, position, number of persons aboard, assistance needed

Answer

MAYDAY once, vessel name twice, position, nearest landmark, nature of distress

Question 3

What does the urgency signal 'PAN-PAN' indicate?

Accepted Answer

An urgent message concerning the safety of a vessel or person, but not immediately life-threatening

Answer

A vessel is on fire and requires immediate assistance

Answer

A navigational hazard has been spotted ahead

Answer

A request for a radio check on Channel 16

Question 4

What is the primary purpose of a DSC (Digital Selective Calling) controller on a VHF radio?

Accepted Answer

To send an automated digital distress alert with vessel identity and position to rescue authorities

Answer

To decode weather broadcasts automatically

Answer

To communicate privately on a selected channel without interference

Answer

To boost transmission power above 25 watts

Question 5

What is an MMSI number used for in marine communications?

Accepted Answer

It is a unique nine-digit number that identifies a vessel in DSC and AIS transmissions

Answer

It identifies the vessel's home port and registration class

Answer

It is the frequency code assigned to a vessel's working channel

Answer

It is the Coast Guard licensing number required for VHF operation

Question 6

What is the maximum transmit power of a handheld VHF marine radio?

Accepted Answer

5 watts

Answer

10 watts

Answer

25 watts

Answer

50 watts

Question 7

Which channel should recreational boaters use to contact the U.S. Coast Guard for non-emergency communications?

Accepted Answer

Channel 22A

Answer

Channel 16

Answer

Channel 9

Answer

Channel 12