Bridge Navigation & Deck Operations

GMDSS – General Knowledge

This test evaluates your knowledge of the Global Maritime Distress and Safety System . It covers key equipment, functions, and procedures for maritime communication and emergency response, ensuring compliance with international safety standards.

Питань 16

Час 9 min

Мова Англійська

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Питання 1

You sent a Distress Alert using INMARSAT C SES. Who will receive this Distress Alert?

A LES, which will redirect it to the associated Rescue Coordination Center (RCC)

B LES, which will redirect it to all nearest Rescue Coordination Centers (RCC)

C LES, which will redirect it to the associated Rescue Coordination Center (RCC) and vessels in the vicinity

D LES, which will redirect it to all nearest Rescue Coordination Centers (RCC) and vessels in the vicinity

Питання 2

How are the coordinates of the EPIRB calculated when its signal is received by the LEOSAR satellite?

A By the Doppler frequency shift

B From an internal GPS receiver installed inside the EPIRB

C According to the last position received from the vessel before she sent a distress alert

D From the data of LRIT system

Питання 3

Your vessel is in sea area A2. You have received a DSC Distress alert from another vessel in MF range (2187.5kHz). What are your actions?

A Wait for DSC Distress ack. from coast station - switch to 2182kHz and listen for the emergency radio communication - acknowledge the distress alert to the vessel in distress on 2182kHz

B Switch to 2182kHz and listen for the emergency radio communication - acknowledge the distress alert to the vessel in distress on 2182kHz

C Switch to 2187.5kHz and listen for the emergency radio communication - acknowledge the distress alert to the vessel in distress on 2187.5kHz

D Wait for DSC Distress acknowledgement from coast station - switch to 2187.5kHz - acknowledge the distress alert to the vessel in distress on 2187.5kHz

Питання 4

Under which conditions the communication range in the MF-band (Sea Area A2) can be increased several times?

A At night, when there is no atmospheric layer D

B The communication range in the MF-band can never be increased and is always limited to a distance of 100-150 nautical miles

C During the day, when the atmospheric D layer is present

D Provided there is complete radio silence from nearby vessels

Питання 5

What do the first three digits in the ship station's MMSI number mean?

A Three digits indicate the code of the country, whose flag the ship flies

B Three digits indicate the vessel's Classification Society code

C Three digits indicate the type of vessel

D Three digits indicate the country code in which the ship was built

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