GMDSS EPIRB and SART Operations 3

Question 1

What information is encoded in a 406 MHz EPIRB's distress transmission?

Accepted Answer

A unique 15-digit identification code linked to the vessel and owner

Answer

The 406 MHz signal encodes a unique 15-digit beacon identification number that is linked to the vessel and owner through national registration databases, enabling authorities to identify the vessel without voice contact.

Question 2

If a vessel's EPIRB is accidentally activated, what is the immediate required action?

Accepted Answer

Immediately notify the appropriate rescue coordination center to cancel the false alert

Answer

Accidental activations must be reported immediately to the nearest rescue coordination center or coast guard to cancel the false alert and prevent unnecessary search and rescue operations from being launched.

Question 3

What is the function of the hydrostatic release unit (HRU) fitted to a Category I EPIRB bracket?

Accepted Answer

It automatically releases and floats the EPIRB free when submerged to 1–4 meters depth

Answer

The HRU is a pressure-sensitive device that releases the EPIRB from its mounting bracket when submerged to 1–4 meters, allowing it to float free and auto-activate if the vessel sinks rapidly.

Question 4

How many SARTs are typically required under SOLAS GMDSS regulations on most cargo ships?

Accepted Answer

Two, placed in survival craft

Answer

SOLAS requires most vessels to carry at least two SARTs, which are to be stored in survival craft so that survivors have access to a SART regardless of which side of the vessel is abandoned.

Question 5

How does an AIS-SART differ from a traditional radar SART?

Accepted Answer

AIS-SARTs transmit their position as an AIS target visible on AIS-equipped displays

Answer

An AIS-SART transmits a distress position message on AIS frequencies (161.975 MHz and 162.025 MHz), appearing as a vessel target on AIS-equipped receivers and chart displays rather than on radar.

GMDSS - Global Maritime Distress and Safety System Practice Test

GMDSS - Global Maritime Distress and Safety System Practice Test

GMDSS EPIRB and SART Operations 3