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

VHF Channel 16 is the internationally designated distress, safety, and calling channel that all vessels must continuously monitor while underway.

Question 2

What does DSC stand for in marine radio communications?

Accepted Answer

Digital Selective Calling

Answer

Digital Selective Calling (DSC) allows a vessel to send an automated distress alert containing GPS position data to the Coast Guard and nearby vessels.

Question 3

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

Accepted Answer

Three times

Answer

International convention requires 'MAYDAY' to be spoken three consecutive times to ensure the distress call is clearly recognized by all stations.

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

A PAN-PAN call signals an urgent situation requiring assistance that is serious but has not yet become an immediate threat to life or the vessel.

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 22A is the primary U.S. Coast Guard working channel; vessels are directed there from Channel 16 for non-distress communications.

OUPV - Operator Uninspected Passenger Vessel Practice Test

OUPV - Operator Uninspected Passenger Vessel Practice Test

OUPV Marine Radio Communications and VHF Operations