OUPV Marine Radio Communications and VHF Operations

Question 1

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

Accepted Answer

Channel 16

Answer

Channel 6

Answer

Channel 22A

Answer

Channel 72

Question 2

What does DSC stand for in marine radio communications?

Accepted Answer

Digital Selective Calling

Answer

Distress Signal Code

Answer

Direct Ship Communication

Answer

Digital Safety Channel

Question 3

How many times is the word 'MAYDAY' spoken at the beginning of a radio distress call?

Accepted Answer

Three times

Answer

Once

Answer

Twice

Answer

Five times

Question 4

What type of situation does a PAN-PAN radio call indicate?

Accepted Answer

Urgent situation that is serious but not immediately life-threatening

Answer

Immediate danger requiring rescue

Answer

Safety warning about a navigational hazard

Answer

Man overboard emergency

Question 5

After establishing contact on Channel 16, which channel should mariners use to speak with the U.S. Coast Guard for non-emergency assistance?

Accepted Answer

Channel 22A

Answer

Channel 9

Answer

Channel 16

Answer

Channel 68

Question 6

A SECURITE (say-cure-e-TAY) radio call is used to broadcast:

Accepted Answer

Important navigational and meteorological warnings

Answer

A vessel in distress

Answer

An urgent medical emergency

Answer

Routine vessel position reports

Question 7

What is the primary purpose of a vessel's MMSI number programmed into a DSC radio?

Accepted Answer

To uniquely identify the vessel when sending or receiving DSC calls

Answer

To identify licensed VHF channels the vessel may use

Answer

To register the vessel's operating frequencies with the FCC

Answer

To access NOAA weather broadcasts automatically