Electro-Technical Competence

Bridge Radio and Communication Equipment

This test is designed to assess knowledge of the structure and connection of bridge communication equipment. Questions cover antenna types, the use of coaxial cables, VHF radio connections, and requirements for effective signal transmission and reception.

Питань 15

Час 9 min

Мова Англійська

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Питання 1

The MF/HF radio’s whip antenna was damaged. How can its operation be temporarily restored until reaching port?

A Connect a piece of single-core wire 6–8 meters long in place of the broken whip, secured vertically and clear of metal structures.

B Swap the MF/HF transmitting antenna with the NAVTEX watch receiver antenna and switch RF connectors accordingly.

C Temporarily replace the MF/HF antenna with a VHF whip antenna.

D Leave the broken whip in place and insulate the exposed end to prevent moisture ingress.

Питання 2

What does the size of the radar screen depend on according to IMO requirements?

A Length of the vessel.

B Radar detection range.

C Not regulated.

D Gross tonnage.

Питання 3

What is the minimum distance a VHF antenna must be installed from metallic ship structures?

A 2 m.

B 0.5 m.

C 1 m.

D 6 m.

Питання 4

After installing a new antenna and routing the cable, there is excess cable length remaining. What is the correct way to handle the excess?

A Cut off the excess, leaving a small reserve at both ends for future repairs, as signal attenuation depends on cable length.

B Coil it near the device, as the cable supplied by the manufacturer is calibrated for that specific unit.

C Coil it near the antenna, as the cable supplied by the manufacturer is calibrated for that specific antenna.

D Route the cable along a different path, evenly distributing the entire length through cable trays.

Питання 5

How many antennas are connected to the VHF radio station from the main GMDSS equipment?

A 2.

B 1.

C 3.

D 4.

Bridge Radio and Communication Equipment

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