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

What type of cable is used to connect antennas?

A Coaxial.

B With a cross-section of not less than 16 mm².

C Any shielded cable.

D Fiber optic.

Питання 2

The S-band radar antenna has stopped rotating. What is the first action to take for diagnostics and troubleshooting?

A Check the power supply (circuit breaker status) for the radar motor, as S-band radars commonly use an asynchronous motor with separate power supply.

B Run the self-test.

C Check the fuses in the radar processor unit.

D Check the condition of brushes in the DC motor inside the scanner.

Питання 3

Which standard is most commonly used on ships for data exchange between navigation equipment?

A NMEA.

B CanBus.

C 4–20 mA current loop.

D ModBus.

Питання 4

Which verbal description best fits an Inmarsat antenna?

A Truncated cone.

B Short whip.

C Long whip.

D Mushroom.

Питання 5

The 24V power fuse for an MF/HF radio has blown. The exact fuse rating is unknown. The radio's power is 150 W. Only four fuse ratings fit physically. Which one should you choose?

A 15 A.

B 1 A.

C 5 A.

D 50 A.

Bridge Radio and Communication Equipment

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