RYA SRC DSC Operations 4

Question 1

Which DSC call format is used to contact a specific vessel individually?

Accepted Answer

Individual call

Answer

An individual DSC call is directed to a specific vessel using that vessel's unique MMSI number.

Question 2

A DSC controller with a built-in GPS will automatically include what information in a distress alert?

Accepted Answer

Position and UTC time

Answer

When interfaced with GPS, a DSC controller automatically inserts the vessel's current position and the UTC time of that position into the distress alert.

Question 3

What action should a vessel take immediately upon receiving a DSC distress acknowledgement from a coast station?

Accepted Answer

Switch to Channel 16 and make a voice distress call

Answer

On receiving acknowledgement from a coast station via DSC, the vessel in distress must switch to Channel 16 and transmit the voice MAYDAY call.

Question 4

What is the purpose of a DSC 'All Ships' distress relay call?

Accepted Answer

To alert all vessels in range of a distress situation observed by the calling vessel

Answer

A DSC All Ships distress relay is used when a vessel witnesses another vessel in distress and relays the distress details to all ships in the area.

Question 5

In DSC, what does a 'Safety' category call typically convey?

Accepted Answer

Navigational or meteorological warnings

Answer

Safety category DSC calls are used to precede navigational or meteorological warnings and are the lowest priority of the three special categories.

RYA SRC Practice Test

RYA SRC Practice Test

RYA SRC DSC Operations 4