Cal Maritime Navigation Test One Practice
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About this Exam
Prepare with the Cal Maritime Navigation Test One Practice practice quiz. This question bank includes 10 questions covering chart, navigation, projection, and maritime. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.
Sample Questions
Question
1
Chart Revision is issued under which condition?
Explanation:
In charting practice, updates come as revisions or new editions, and the line between them is the scale of change. A chart revision is issued when there are a few minor corrections and a new edition isn’t warranted. It updates the existing chart without replacing it, and it carries its own revision date alongside the edition information. This lets mariners have the latest small fixes quickly without the cost and lead time of printing a completely new edition. If changes are substantial enough to affect navigation—like major updates to coastlines, depths, or symbols—a full new edition is published with a new edition date.
Question
2
Which publication group includes 5 Planning Guides and 37 Enroute volumes?
Explanation:
Sailing Directions are published in two main parts: Planning Guides and Enroute volumes. The Planning Guides cover voyage planning material—overview of regions, recommended routes, pilotage considerations, and general coastwide features—while the Enroute volumes provide detailed navigation information for specific coastal areas, including approaches, hazards, currents, tides, and port entries. The combination of five Planning Guides and 37 Enroute volumes reflects how this publication group is structured for both planning ahead and navigating step by step along coastlines. Other publication groups serve different purposes and don’t follow this Planning Guide plus Enroute split, which is why they don’t fit the given description. Therefore, the group described is Sailing Directions.
Question
3
Which radio navigation system was terminated by the US Coast Guard in 2010 and is no longer in use?
Explanation:
Loran-C was the system that the US Coast Guard terminated in 2010. It’s a long-range radio navigation method that works by using signals from a network of land-based transmitters; receivers measure the timing differences of those signals to determine position. It served for many years, but keeping the transmitter chains ongoing is costly and the accuracy is not as high or as globally reliable as GPS. As GPS became the standard with global coverage, higher precision, and simpler equipment, the Coast Guard phased out Loran-C in 2010. Since then, Loran-C is no longer in active use by the USCG, though the idea of a backup eLoran has been discussed in other regions.
Question
4
How is a loxodrome navigated?
Explanation:
A loxodrome is navigated by maintaining a constant compass bearing as you cross meridians. This means you steer one course and keep the same heading relative to true north throughout the voyage. On a globe, keeping a fixed bearing creates a rhumb line, which appears as a curve that spirals toward the poles because meridians converge while your bearing stays unchanged. This is different from a great-circle path, where the route is the shortest distance between two points but the bearing changes along the way. So, to follow a loxodrome, you simply keep a constant bearing.
Question
5
Digits 3-5 on a 5-digit chart indicate which element?
Explanation:
Digits 3 through 5 in a 5-digit chart designation are used to pinpoint a specific location within the broader area defined by the leading digits. The first two digits set the larger region or block, while the trailing three digits narrow it down to a precise spot within that region. That makes the trailing digits indicate the exact location you’re looking at on the chart, rather than a general area or subregion. So, the correct interpretation is that the trailing digits correspond to the specific location.
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Cal Maritime Navigation Test One Practice
This practice set contains 10 questions from the matching question bank and focuses on chart, navigation, projection, and maritime. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.
This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.
Frequently Asked Questions
This quiz contains a total of 10 practice questions carefully selected to test your knowledge on this subject.
Yes, you will have exactly 0 minutes to complete the exam. A countdown timer will be visible once you start.
Yes, you can retake this practice test as many times as you need. The questions and options may be randomized on subsequent attempts to ensure comprehensive learning.
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