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

Which verbal description best fits a GPS antenna?

A Mushroom.

B Short whip.

C Truncated cone.

D Long whip.

Питання 2

Why is proper grounding of the MF/HF antenna tuning unit important?

A For matching the transmitter with the antenna and proper wave formation: the ship’s hull forms a dipole pair with the antenna.

B For crew safety, as the voltage applied to the antenna may exceed one kilovolt.

C For equipment protection in case of lightning strike to the antenna.

D To reduce signal losses in the cable.

Питання 3

On which vessels is an external sound signal receiving system required?

A On vessels with a fully enclosed wheelhouse.

B On passenger ships.

C On vessels with a gross tonnage over 3000 tons.

D On vessels with a high noise level.

Питання 4

In which wavelength range does marine radar operate?

A Centimeter waves.

B Meter waves.

C Decimeter waves.

D Millimeter waves.

Питання 5

What is the difference between S-band radar and X-band radar?

A S-band generally has a longer detection range but lower resolution.

B At least one X-band radar is mandatory for all vessels over 300 GT; the presence and number of S-band radars are not regulated.

C The antenna of an S-band radar is significantly larger than that of an X-band radar.

D The antenna of an S-band radar is significantly smaller than that of an X-band radar.

Bridge Radio and Communication Equipment

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