GMDSS MCQ MOCK TEST

Which of the following control selection may result in limited receiving range of VHF transceiver?

• Setting the squelch control to its maximum level

• Setting the channel selection switch midway between channels 6 and 16

• The power switch is set to the “high” output position resulting in receiver overloading

• Setting squelch control to its minimum level

How can rescue personnel detect that a SART is transmitting in the immediate vicinity?

• The SART’s blips on the RADAR screen will begin arcing and eventually become concentric circles

• The SART can provide an approximate location to within a two nautical mile radius, as per IMO standards

• The SART signal appears as a target which comes and goes from the effect of heavy swells on a SART

• The DSC unit will react to the SART’s signal and respond with the two-tone auto alarm

MF DSC Equipment shall be tested without the associated transmitter being activated at least :

• Once a week

• Once a day

• Twice a week

• Once a month

COSPAS-SARSAT EPIRB must have a battery capacity for :

• At least 48 hours standby followed by 8 hours operation

• At least 72 hours operation

• At least 96 hours standby followed with 8 hours operation

• At least 48 hours operation

Which is the most appropriate action for a GMDSS radio operator to take in a distress situation where immediate help is needed, but the vessel is not sinking nor needs to be abandoned?

• Notify the RCC (Rescue Coordination Center) through VHF on channel 13

• Transmit distress call by activating the radiotelegraph automatic alarm signal

• Switch on EPIRB and SART manually

• Transmit distress call by HF/MF/VHF DSC on Inmarsat

Which of the following is a radiotelephony distress frequency for medium range distress communication with RCC?

• CH16

• 2242.5 KHz

• 2182.0 KHz

• 2187.5 KHz

Under what conditions would you RELAY a DSC distress alert?

• When your ship is not sinking

• If no coast station / mobile unit acknowledgement is observed

• If the mobile unit is distress is able to conduct further Distress Alert communications

• You should never relay such an alert – the coast station & RCC will do that

With an Inmarsat-C SES, how are messages routed to shore receiving stations?

• Direct connections are made to the receiving stations via gateways

• Messages are stored until the network is polled by receiving station

• Intermediary stations are used to connect the sending station with the receiving station in a real-time mode

• All messages are sent via a store and forward network.

Which factors normally determine the range of VHF transmissions?

• Channel number

• Vessel antenna height

• Time of the day

• Channel frequency

Repetition of DSC distress call is normally automatic if not acknowledged after a delay of :

• 1.5 to 2.5 minutes

• 3.5 to 4.5 minutes

• 2.5 to 3.5 minutes

• 0.5 to 1.5 minutes