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Exam (elaborations)

OUPV 6 Pack – 100+ Lights & Sound Questions with Answers | USCG Rules, Signals, COLREGS, Firefighting | Maritime Studies

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This comprehensive document contains over 100 exam-style questions with verified answers focused on Lights and Sound Signals, forming a critical part of the OUPV (Operator of Uninspected Passenger Vessels) 6 Pack License exam, compliant with USCG (United States Coast Guard) testing standards for the 2025/2026 cycle. It is an essential study guide for mastering COLREGS (International Regulations for Preventing Collisions at Sea), particularly vessel identification, maneuvering signals, restricted visibility protocols, and sound signal usage. In addition, the document includes auxiliary safety topics, such as fire prevention, marine radio communication, man-overboard recovery techniques, and basic environmental compliance, making it a broad-spectrum prep resource. Key subject areas include: – Navigation lights and day shapes for various vessel types (NUC, RAM, CBD, Fishing, Sailing, Towing, Pilot) – Sound signals in international and inland waters, including maneuvering and restricted visibility scenarios – Distress communication using VHF channels (Channel 16, PAN PAN, SECURITE) and emergency signaling procedures – Firefighting classes, extinguishing techniques, heat transmission, and use of portable extinguishers – Marine safety procedures (liferaft deployment, EPIRBs, anchoring, heaving-to, turns for MOB recovery) – Weather systems and fog formation, atmospheric pressure, and interpretation of barometric readings – Compliance topics such as MARPOL, MSDs, waste management, oil pollution laws, and emergency protocols This document is ideal for: – Students in Maritime Studies, Nautical Science, Marine Engineering, or Navigation and Seamanship – Trainees at USCG-approved maritime academies, private marine institutions, or professional training centers – Charter captains, deckhands, crew members, and recreational boaters seeking USCG OUPV certification – Instructors needing question-and-answer based materials to teach maritime safety and COLREGS It serves both as a targeted test preparation guide and a practical knowledge reference, offering learners a high-yield approach to one of the most critical portions of the OUPV exam. The structure supports active recall and scenario-based decision-making, preparing candidates for both exam and real-world navigation. Keywords: OUPV 6 pack, USCG license exam, lights and day shapes, sound signals, COLREGS, maneuvering signals, restricted visibility, firefighting procedures, VHF radio communication, maritime weather, MOB recovery, EPIRB, maritime law, MARPOL, vessel anchoring, vessel types, navigation rules, maritime safety, fog signals, chart symbols

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Uploaded on
October 4, 2025
Number of pages
30
Written in
2025/2026
Type
Exam (elaborations)
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Questions & answers

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OUPV Lights and Sound 2025/2026
Exam Questions and Verified Answers |
Already Graded A+



NUC (night, day) - 🧠ANSWER ✔✔Red /red , side lights and a stern light;

Ball/Ball


RAM (night /day) - 🧠ANSWER ✔✔red /white/red (no side lights when

underway); ball/diamond/ball


RAM (night/day; safe side) - 🧠ANSWER ✔✔green/green; diamond/diamond


RAM (night/day; danger side) - 🧠ANSWER ✔✔red/red; ball /ball


CBD (night/ day) - 🧠ANSWER ✔✔red/red/red; cylinder


Fishing (night/ day) - 🧠ANSWER ✔✔red/ white; hourglass


Fishing (gear out >150m this side) - 🧠ANSWER ✔✔white; triangle

,Fishing (Trawing) - 🧠ANSWER ✔✔green/white; hourglass


Sailing (night / day); <7m - 🧠ANSWER ✔✔red/green; upsidedown triangle;

sailing vessel <7m or vessel under oars may use flashlight as latern


mine clearance - 🧠ANSWER ✔✔stand clear 1,000m all around


pilot (night/ day) - 🧠ANSWER ✔✔white/red; "hotel" flag


aground (night/ day); all vessels; <50m; <12m)+ - 🧠ANSWER ✔✔red/red;

ball/ball/ball (All vessels: 2 red and 2 white all-around lights; <50m one

white light instead of 2; <12m exempt)


anchored (day/ night); <50m; <100m; >100m - 🧠ANSWER ✔✔all-around

white light; one ball (<50m= 1 all-around white light; <100m=2 all-around

white light; >100m also illuminate decks)


Navigation lights - 🧠ANSWER ✔✔<12m: include all-round white light and

red and green sidelights; <7m: 1 all-around white light


Naviagtion Lights (<20m) - 🧠ANSWER ✔✔1 stern light (135 degrees); 1

masthead light (225 degrees); red and green side lights


Navigation Lights (>20<50m) - 🧠ANSWER ✔✔1 stern light (135 degrees); 1

masthead light (225 degrees); red and green side lights (not combined)

, Naviagtion Lights (>50m) - 🧠ANSWER ✔✔1 stern light (135 degrees); 2

masthead light (225 degrees); red and green side lights (not combined)


Towing <200m astern - 🧠ANSWER ✔✔2 masthead (225 degrees) lights


Towing >200m astern - 🧠ANSWER ✔✔3 masthead (225 degree) lights


International: 1 short blast - 🧠ANSWER ✔✔Altering my course to starboard


International: 2 short blasts - 🧠ANSWER ✔✔Altering my course to port


International: 3 short blasts - 🧠ANSWER ✔✔operating astern propulsion


International: 5 short blasts - 🧠ANSWER ✔✔Warning/ doubt; Overtaken:

No (may)


International: 1 prolonged blast - 🧠ANSWER ✔✔nearing an obscured bend


International: 2 prolonged blasts, 1 short blast - 🧠ANSWER ✔✔Overtaking;

I intend to leave you on your starboard side


International: 2 prolonged blasts, 2 short blast - 🧠ANSWER ✔✔Overtaking;

I intend to leave you on your port side

International: 1 prolonged blast, 1 short blast, 1 prolonged blast, 1 short

blast - 🧠ANSWER ✔✔Overtaken; Yes (shall)

3
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