100+ Free USCG Master Rivers 100 Practice Questions
Prepare for the USCG Master of Less Than 100 GRT — Rivers exam with instant access — no signup required.
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Key Facts: USCG Master Rivers 100 Exam
RVR05
NMC Exam Code
NMC Examinations
70
Q401 Deck Gen/Safety Questions
NMC RVR05 / Deck Guide
90%
Rules & Chart Plot Pass Score
USCG module standards
70%
Deck/Nav Module Pass Score
USCG Deck Guide
$240
Typical Original Total Fee
Evaluation + exam + issuance
5 yr
MMC Validity
USCG MMC rules
RVR05 Master Rivers less than 100 GRT is modular: Inland Rules (Q300, 90%), Deck General and Safety (Q401, 70 questions at 70%), Navigation General Rivers (Q402, 70%), and Chart Plot (Q403, 90%). Lower-level original fees are about $100+$95+$45 under 46 CFR 10.219. Service follows 46 CFR 11.459 (inland checklist alignment; Great Lakes service not required). This free bank is an English MCQ study aid focused on smaller river vessels.
Sample USCG Master Rivers 100 Practice Questions
Try these sample questions to test your USCG Master Rivers 100 exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.
1Under the Inland Navigational Rules, a proper lookout must be maintained by:
2You observe another vessel by compass bearing while closing range on a river. The bearing remains nearly steady. What should you assume?
3Two power-driven vessels are crossing so as to involve risk of collision. Which vessel is the give-way vessel under the Inland Rules?
4Under Inland Rule 14, when two power-driven vessels are meeting head-on so as to involve risk of collision, each vessel shall:
5Under Rule 13, once a vessel is an overtaking vessel, any subsequent change of bearing between the two vessels:
6What lights does a power-driven vessel underway of less than 50 meters typically show under the Inland Rules at night?
7Under Inland Rule 34, one short blast when vessels are in sight of one another generally means:
8Five or more short and rapid blasts on the whistle means:
9In restricted visibility, a power-driven vessel making way through the water shall sound at intervals of not more than two minutes:
10A vessel not under command (NUC) exhibits which day shapes?
About the USCG Master Rivers 100 Exam
The USCG Master of Less Than 100 GRT — Rivers examination (NMC exam code RVR05) is the national deck knowledge path for limited 100 GRT master service on rivers under 46 CFR 11.459. Modules cover Inland Rules of the Road (Q300), combined Deck General and Safety (Q401), Navigation General Rivers (Q402), and Chart Plot (Q403). It is distinct from Near Coastal Master 100 (ONC06) and Great Lakes and Inland Master/Mate 100 (GLI06).
Assessment
RVR05: Q300 Rules of the Road Inland (typically 50, 90%); Q401 Deck General and Safety (70, 70%); Q402 Navigation General Rivers (typically 50, 70%); Q403 Chart Plot (typically 10, 90%). Confirm current sample-exam sizes on the NMC RVR05 page.
Time Limit
Up to 3.5 hours per module; minimum two modules per day, all modules completed on consecutive days within the same business week
Passing Score
70% most modules; 90% Rules of the Road Inland (Q300); 90% Chart Plot (Q403)
Exam Fee
$95 examination fee; ~$240 typical original lower-level total ($100 evaluation + $95 exam + $45 issuance) (U.S. Coast Guard National Maritime Center (NMC) / Regional Exam Centers)
USCG Master Rivers 100 Exam Content Outline
Rules of the Road Inland
Inland Rules with Western Rivers special provisions for less-than-100 GRT river master decisions (Q300).
Deck General and Safety
Seamanship, river vessel handling, stability, firefighting, and emergencies for Q401 (70 questions).
Navigation General Rivers
River navigation, aids, currents, locks, compass, and piloting (Q402).
Chart Plot
River chart navigation and calculation problems scored at 90% (Q403).
How to Pass the USCG Master Rivers 100 Exam
What You Need to Know
- Passing score: 70% most modules; 90% Rules of the Road Inland (Q300); 90% Chart Plot (Q403)
- Assessment: RVR05: Q300 Rules of the Road Inland (typically 50, 90%); Q401 Deck General and Safety (70, 70%); Q402 Navigation General Rivers (typically 50, 70%); Q403 Chart Plot (typically 10, 90%). Confirm current sample-exam sizes on the NMC RVR05 page.
- Time limit: Up to 3.5 hours per module; minimum two modules per day, all modules completed on consecutive days within the same business week
- Exam fee: $95 examination fee; ~$240 typical original lower-level total ($100 evaluation + $95 exam + $45 issuance)
Keys to Passing
- Work through all 100 available questions
- Review every answer and explanation
- Track weak areas and revisit them
- Use our AI tutor for tough concepts
USCG Master Rivers 100 Study Tips from Top Performers
Frequently Asked Questions
How many questions are on the USCG RVR05 exam?
RVR05 is modular for Master of less than 100 GRT on rivers. Published modules include Rules of the Road Inland (Q300), Deck General and Safety (Q401 — 70 questions at 70%), Navigation General Rivers (Q402), and Chart Plot (Q403). Exact totals depend on the current NMC module sizes; confirm sample exams on the RVR05 NMC page.
What passing score do I need?
Most modules require 70%. Rules of the Road Inland (Q300) requires 90%. Chart Plot (Q403) requires 90%.
How much does the exam cost?
Under 46 CFR 10.219, a typical original lower-level officer path is about $100 evaluation, $95 examination, and $45 issuance (~$240 total). Medical, drug testing, and training costs are separate. Pay via Pay.gov.
Can I take the exam remotely?
No. These deck officer modules are administered in person at U.S. Coast Guard Regional Exam Centers (RECs). There is no approved remote-testing option for these endorsements.
Is RVR05 the same as the Near Coastal 100-ton Master exam?
No. RVR05 is Master of less than 100 GRT on rivers. Near Coastal Master less than 100 GRT uses a different NMC path (ONC06 / uscg-master-100). Great Lakes and Inland Master/Mate less than 100 GRT uses GLI06 (uscg-master-mate-gli-100). Do not mix route-specific modules or assume one credential covers the other route.
What regulation covers Master or Mate on rivers?
46 CFR 11.459 addresses Master or Mate on rivers. NMC directs applicants to the master or mate Great Lakes and inland checklists as appropriate for service requirements; Great Lakes service is not required for rivers routes.
Is Q401 separate deck general and deck safety?
On RVR05, Q401 is a combined Deck General and Safety module (70 questions, 70% pass), not two separate 50-question deck modules as on some higher-tonnage or other route paths.
What calculator can I bring?
The NMC policy letter of December 2, 2024 superseded the earlier TI-30XIIS-only rule. At a Regional Exam Center you may use a programmable calculator with memory if all programs and memory are cleared before entry and you can demonstrate clearing with the manufacturer's instructions. If the examiner cannot confirm the device is cleared, a TI-30XIIS is provided instead. Only one calculator is allowed; other electronics including smart watches are not permitted.
Is this free practice bank an official Coast Guard exam?
No. This is a free English-language multiple-choice study aid for exam prep. Official modules are administered by the Coast Guard at RECs and may include chart-plot and calculation items that this bank approximates with knowledge and calculation MCQs.