Bridge Navigation & Deck Operations

Radar & ARPA Competence Test

This test covers the principles and practical use of marine radar and ARPA systems for safe navigation and collision avoidance. It includes questions on radar theory, equipment operation, echo interpretation, CPA/TCPA assessment, radar plotting, and compliance with COLREG. Ideal for navigational officers preparing for operational or management certification.

प्रश्न 15

समय सीमा 9 min

भाषा अंग्रेज़ी

नमूना प्रश्न

यहाँ इस क्विज़ के कुछ उदाहरण प्रश्न हैं। पूरा टेस्ट देने के लिए GYRO ऐप डाउनलोड करें।

प्रश्न 1

If the trace is not correctly centred, error may occur when …

A measuring bearings.

B measuring ranges.

C using the tuning control.

D using the gain control.

प्रश्न 2

There is a risk of collision with another vessel if …

A her bearing is steady and the range is decreasing.

B her bearing is changing and the range is increasing.

C her bearing is steady and the range is increasing.

D her bearing is changing and the range is decreasing.

प्रश्न 3

Half the vertical distance between the crest and the trough of a radio wave is called …..

A the amplitude.

B the frequency.

C the wavelength.

D a cycle.

प्रश्न 4

When using the radar for coastal position fixing the main concern is to ...

A obtain the most accurate fix.

B allow for beamwidth distortion.

C avoid radar interference.

D avoid radar shadow effect.

प्रश्न 5

Side echoes are caused by reflections from ….

A the side lobes of the radar beam.

B the side of your own vessel.

C the surface of the sea.

D the obstruction in the path of the scanner.

यह क्विज़ दें. इस क्विज़ को देने और अपनी प्रगति ट्रैक करने के लिए GYRO ऐप डाउनलोड करें।