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100+ Free USCG Master Rivers 500-1600 Practice Questions

Prepare for the USCG Master of Less Than 500–1600 GRT — Rivers exam with instant access — no signup required.

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2026 Statistics

Key Facts: USCG Master Rivers 500-1600 Exam

RVR02

NMC Exam Code

NMC Examinations

~210

Typical Original Path Questions

Q300+Q386–Q389 module sums

90%

Rules & Chart Plot Pass

USCG Deck Guide / module standards

$95

Exam Fee (Lower Level)

46 CFR 10.219

$240

Typical Original Total Fee

Evaluation + exam + issuance

500–1600

GRT Band (Exam Code)

NMC RVR02

RVR02 Master Rivers less than 500–1600 GRT is modular: Inland Rules (50 at 90%), Deck General and Deck Safety (50 each at 70%), Navigation General Rivers (50 at 70%), and Chart Plot (10 at 90%)—about 210 original-path questions. Lower-level original fees are about $100+$95+$45 under 46 CFR 10.219. Service follows 46 CFR 11.459 like corresponding GLI tonnage; Great Lakes service is not required. This free bank is an English MCQ study aid.

Sample USCG Master Rivers 500-1600 Practice Questions

Try these sample questions to test your USCG Master Rivers 500-1600 exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1As master on watch under Inland Rule 5, you must maintain a proper lookout by:
A.Sight and hearing as well as by all available means appropriate to the circumstances
B.AIS alone when traffic density is low
C.Radar only in restricted visibility
D.Visual observation only when the vessel is less than 500 GRT
Explanation: Rule 5 requires every vessel to maintain a proper lookout by sight and hearing and by all available means appropriate in the prevailing circumstances and conditions. Tonnage does not reduce that duty on rivers.
2Under Inland Rule 7(a), if there is any doubt whether risk of collision exists, such risk shall be:
A.Deemed to exist
B.Ignored until AIS confirms a CPA under 0.5 nm
C.Assumed only inside a lock approach
D.Determined solely by the give-way vessel
Explanation: Rule 7(a) requires using all available means appropriate to determine whether risk of collision exists, and if there is any doubt, such risk shall be deemed to exist.
3The steering and sailing rules of Section II, Rules 11 through 18, apply only to vessels:
A.In sight of one another
B.Operating in restricted visibility
C.Of 20 metres or more in length
D.Underway and making way through the water
Explanation: Rule 11 limits Section II to vessels in sight of one another. Once visual contact is lost, Rule 19 governs and there is no stand-on vessel at all: each vessel must act on her own assessment. That is why questions about who has the right of way in fog have only one answer, which is that nobody does.
4Under the Inland Rules, three short blasts on the whistle mean:
A.I am operating astern propulsion
B.I intend to overtake you on your starboard side
C.I am altering my course to port
D.I am in doubt as to your intentions
Explanation: Three short blasts mean I am operating astern propulsion under both Inland and International Rules.
5Under Rule 22, the minimum visibility range required for the masthead light of a vessel of 50 metres or more in length is:
A.6 miles
B.3 miles
C.2 miles
D.1 mile
Explanation: Rule 22 sets minimum ranges by length of vessel. In a vessel of 50 metres or more the masthead light must be visible at 6 miles, while the sidelights, sternlight, towing light, and all-round lights must be visible at 3 miles. Shorter vessels have proportionally shorter required ranges, which is worth remembering when judging how far off a small craft really is.
6Under Inland Rules on the Western Rivers or waters specified by the Secretary, a power-driven vessel proceeding downbound with a following current shall:
A.Have the right-of-way over an upbound vessel and propose the manner of passage; the upbound vessel shall hold as necessary
B.Always keep to the starboard side of the channel and never sound signals
C.Yield to all upbound traffic because following current makes her less maneuverable
D.Anchor if another vessel is within 1 mile ahead
Explanation: Inland Rule 9 provisions for Western Rivers (and Great Lakes/specified waters) give a downbound power-driven vessel with a following current the right-of-way over an upbound vessel. The downbound vessel proposes the manner of passage; the upbound vessel holds as necessary.
7Under Inland Rule 34, when power-driven vessels are in sight of one another and meeting or crossing with risk of collision, a short blast means:
A.I intend to leave you on my port side (and requires an answering agreement signal under Inland Rules)
B.I am already altering my course to port under International Rules only
C.I am operating astern propulsion
D.I am in doubt
Explanation: Under Inland Rules, one short blast is an intention signal: I intend to leave you on my port side. The other vessel replies with the same signal to agree. This differs from International Rules, where one short means I am altering my course to starboard.
8Rule 19(d) gives a second caution to a vessel taking avoiding action on radar information alone. So far as possible she must avoid an alteration of course toward:
A.A vessel abeam or abaft the beam
B.Any vessel forward of the beam
C.The nearest land
D.The centre of a traffic separation scheme
Explanation: Rule 19(d) contains two cautions. Avoid an alteration of course to port for a vessel forward of the beam, other than one being overtaken, and avoid an alteration of course toward a vessel abeam or abaft the beam. Both are there to stop a vessel turning blindly into a contact she cannot see.
9A vessel engaged in towing alongside or pushing ahead on the Western Rivers, when required to exhibit lights, typically shows towing identification lights in addition to:
A.Sidelights and sternlight (and special light arrangements for the tow as required by the Rules)
B.Only a single white all-round light
C.Two green lights only
D.No sidelights when the tow is less than 200 meters
Explanation: Towing vessels show prescribed masthead/towing lights with sidelights and sternlight, and barges/tows show the lights required by length and configuration under the Inland Rules.
10Under Inland Rules, when vessels are in sight and one is in doubt as to the intentions or actions of the other, the vessel in doubt shall immediately:
A.Sound at least five short and rapid blasts on the whistle
B.Sound one prolonged blast only
C.Extinguish all navigation lights
D.Anchor without signaling
Explanation: Inland Rule 34(d) requires the danger/doubt signal of at least five short and rapid blasts when in doubt about the other vessel's intentions or actions.

About the USCG Master Rivers 500-1600 Exam

The USCG Master of Less Than 500–1600 GRT — Rivers examination (NMC exam code RVR02) is the limited-tonnage national deck knowledge path for master service on rivers under 46 CFR 11.459. Modules cover Inland Rules of the Road (including Western Rivers special provisions), deck general, deck safety, navigation general for rivers, and chart plot. Service requirements match the corresponding Great Lakes and inland tonnage path; Great Lakes service is not required.

Assessment

RVR02: Q300 Rules of the Road Inland (50, 90%); Q386 Deck General (50, 70%); Q387 Deck Safety (50, 70%); Q388 Navigation General Rivers (50, 70%); Q389 Chart Plot (10, 90%). Q390 is Master LT 500-1600 GRT Renewal Open Book Exercise (renewal only).

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; 90% chart plot

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 500-1600 Exam Content Outline

~24%

Rules of the Road Inland

Inland Rules with Western Rivers special provisions for limited-tonnage river master decisions.

~24%

Deck General

Seamanship, tow and barge operations, watchkeeping, and shipboard management at master level.

~24%

Deck Safety

Stability, damage control, firefighting, lifesaving, and emergencies.

~24%

Navigation General Rivers

River navigation, aids, currents, locks, compass, and piloting.

~5%

Chart Plot

Plotting and calculation problems scored at 90%.

How to Pass the USCG Master Rivers 500-1600 Exam

What You Need to Know

  • Passing score: 70% most modules; 90% Rules of the Road; 90% chart plot
  • Assessment: RVR02: Q300 Rules of the Road Inland (50, 90%); Q386 Deck General (50, 70%); Q387 Deck Safety (50, 70%); Q388 Navigation General Rivers (50, 70%); Q389 Chart Plot (10, 90%). Q390 is Master LT 500-1600 GRT Renewal Open Book Exercise (renewal only).
  • 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 500-1600 Study Tips from Top Performers

1Overprepare for Inland Rules of the Road because Q300 requires 90% to pass.
2Master Western Rivers/Inland special rules: downbound privilege, river-crossing duties, and Inland Rule 34 intention/agreement signals.
3Drill lights and shapes for power-driven vessels, towing vessels, and barges—core river traffic pictures.
4Practice lock procedures, current effects on tows, and bank/channel awareness for Navigation General Rivers.
5Drill chart-plot routines: speed-time-distance, set and drift, and compass error arithmetic until automatic.
6Take timed sets of 50 questions to match REC deck and navigation module length.
7Review stability, damage control, firefighting, and abandon-ship procedures for Deck Safety.
8Study barge and tow seamanship, line handling, and watchkeeping for limited-tonnage river operations.
9Confirm your application path is RVR02 (rivers) rather than GLI03 (Great Lakes and Inland) so you prepare the correct nav module.
10Know that Q390 is renewal open book only—do not confuse it with original-module prep.

Frequently Asked Questions

How many questions are on the USCG RVR02 exam?

RVR02 is modular. Original modules are Rules of the Road Inland (50), Deck General (50), Deck Safety (50), Navigation General Rivers (50), and Chart Plot (10)—about 210 questions total. Q390 is a renewal open-book exercise, not part of the original knowledge path.

What passing score do I need?

Most modules require 70%. Rules of the Road Inland (Q300) requires 90%. Chart plot (Q389) 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. 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.

How does Master Rivers 500–1600 service compare to Great Lakes and inland at the same tonnage?

Under 46 CFR 11.459(b), Master or Mate of river self-propelled vessels with a 25 to 1,600 GRT limitation must meet the same service requirements as the corresponding tonnage Great Lakes and inland endorsement. Service on the Great Lakes is not required for rivers endorsements.

Are open-book renewal exercises the same as the original modules?

No. Q390 Master LT 500-1600 GRT Renewal Open Book Exercise is separate from original RVR02 knowledge modules (Q300, Q386–Q389). This bank focuses on original-module knowledge.

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 an English-language multiple-choice study adaptation 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.