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CHIEF MATE · QUESTION BANK
Navigational Aids
389 questions across 36 papers, 2018 to 2026.
Navigational Aids, known to candidates as Nav Aids, appears in 36 Chief Mate papers between 2018 and 2026, and the 389 questions collected here centre on navigational aids, marine navigation and collision avoidance. 78% of them have been asked more than once, so the fastest preparation is the questions that keep returning rather than the syllabus end to end.
389
Questions
36
Papers
78%
Repeat
10×
Most asked
What comes up most
- Navigational aids86%
- Marine navigation83%
- Collision avoidance17%
- Ais14%
- Magnetic compass17%
- Echo sounder14%
- Autopilot14%
Share of the 36 papers each topic appears in. No single topic runs away with this paper — the seven commonest each turn up in 14–86% of sittings, so preparation has to stay broad.
Most repeated Chief Mate Nav Aids questions
Asked 10×
a) Explain the various errors that might affect the accuracy of GPS fix and state the maximum error in position due to this. b) Describe how DGPS enhances the accuracy of GPS position?
Asked 8×
a) Explain what is Steaming Error, why it is caused & how it affects the settling position of a gyro compass? b) In latitude 32" N. The Damping Error is 1.2" E. Calculate the total error of the same gyro compass while making good a course of 315° (T) at a speed of 18 knots in latitude 48°S.
Asked 6×
a) With the aid of simple sketches, describe ranging and phasing in an Echo-Sounder. b) Describe the errors associated with a Doppler Speed Log.
Chief Mate Nav Aids past papers
Latest: August 2026
Chief Mate Nav Aids — August 2026
9 questions
Chief Mate Nav Aids — May 2026
18 questions
Chief Mate Nav Aids — February 2026
18 questions
Chief Mate Nav Aids — November 2025
18 questions
Chief Mate Nav Aids — August 2025
18 questions
Chief Mate Nav Aids — May 2025
18 questions
Chief Mate Nav Aids — February 2025
18 questions
Chief Mate Nav Aids — November 2024
18 questions
Chief Mate Nav Aids — August 2024
16 questions
Chief Mate Nav Aids — May 2024
16 questions
Chief Mate Nav Aids — February 2024
16 questions
Chief Mate Nav Aids — November 2023
16 questions
Chief Mate Nav Aids — August 2023
8 questions
Chief Mate Nav Aids — May 2023
8 questions
Chief Mate Nav Aids — February 2023
8 questions
Chief Mate Nav Aids — November 2022
8 questions
Chief Mate Nav Aids — October 2022
8 questions
Chief Mate Nav Aids — September 2022
8 questions
Chief Mate Nav Aids — July 2022
8 questions
Chief Mate Nav Aids — May 2022
8 questions
Chief Mate Nav Aids — March 2022
8 questions
Chief Mate Nav Aids — January 2022
6 questions
Chief Mate Nav Aids — November 2021
8 questions
Chief Mate Nav Aids — September 2021
8 questions
Chief Mate Nav Aids — August 2021
8 questions
Chief Mate Nav Aids — April 2021
8 questions
Chief Mate Nav Aids — January 2021
8 questions
Chief Mate Nav Aids — November 2020
8 questions
Chief Mate Nav Aids — February 2020
8 questions
Chief Mate Nav Aids — November 2019
8 questions
Chief Mate Nav Aids — August 2019
8 questions
Chief Mate Nav Aids — May 2019
8 questions
Chief Mate Nav Aids — February 2019
8 questions
Chief Mate Nav Aids — November 2018
8 questions
Chief Mate Nav Aids — August 2018
8 questions
Chief Mate Nav Aids — May 2018
8 questions
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