NAUTICED INTERNATIONAL SAILING
LICENSE AND CREDENTIALS (SLC)
EXAM QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS) PLUS
RATIONALES 2026 Q&A | INSTANT
DOWNLOAD PDF.
Core Domains
• COLREGS (Collision Regulations) and Navigation Rules
• Nautical Charts and Chartwork
• Tides, Currents, and Tidal Calculations
• Buoyage Systems and Aids to Navigation (IALA-A and IALA-B)
• Weather Systems and Forecasting
• Sail Trim, Rigging, and Points of Sail
• Anchoring, Mooring, and Docking Procedures
• Safety, Emergency Response, and Man Overboard Recovery
• Boat Systems and Engine Operations
Introduction
The NauticEd International Sailing License and Credentials (SLC) examination assesses the
knowledge and practical competence required to charter a sailboat in the Mediterranean and
worldwide. This comprehensive assessment evaluates understanding of COLREGS,
chartwork, tides, buoyage systems, weather, sail trim, anchoring, docking, and emergency
procedures. Questions are structured as multiple-choice and scenario-based items requiring
,applied seamanship judgment. Emphasis is placed on real-world decision-making, safety,
and the ability to skipper a vessel competently. The SLC requires completion of the Bareboat
Charter Master bundle, logged sailing experience, and a practical on-water assessment.
Section One: Questions 1–100
1. According to the COLREGs, what is your primary obligation as the give-way vessel
when risk of collision exists?
A. Maintain course and speed
B. Take early and substantial action to keep well clear
C. Sound one prolonged blast to signal your intentions
D. Reduce speed and wait for the stand-on vessel to act
Correct answer: B
RATIONALE: Rule 8 of the COLREGS states that any action taken to avoid collision
shall be positive, made in ample time, and shall result in passing at a safe distance. Early
and substantial action is required .
2. What is the "Course Over Ground" (COG) of a vessel?
A. The direction the vessel is heading through the water
B. The actual direction the vessel is moving over the earth's surface
C. The compass heading adjusted for variation and deviation
D. The direction of the wind relative to the vessel
Correct answer: B
RATIONALE: COG is the actual direction of a vessel's movement relative to the earth's
surface, accounting for current, wind, and leeway. It differs from heading, which is the
direction the bow points .
3. What is the primary purpose of a vessel's "holding tank"?
A. To store fresh water for long voyages
B. To contain sewage and prevent its discharge in restricted waters
C. To store fuel for the engine
,D. To act as a reserve bilge pump reservoir
Correct answer: B
RATIONALE: A holding tank is part of a marine sanitation device (MSD). It collects
and stores sewage from the vessel's heads so it can be pumped out at a shoreside facility or
discharged only when legally permitted .
4. A weather forecast reports "Small Craft Advisory." What does this indicate?
A. A tsunami warning for small harbors
B. A warning for high winds and seas dangerous to small vessels
C. An alert for heavy fog reducing visibility
D. A notice of large vessel traffic in the area
Correct answer: B
RATIONALE: A Small Craft Advisory warns mariners of hazardous conditions for small
boats, usually defined by sustained winds (e.g., 20–33 knots) and/or dangerous sea
conditions .
5. In the context of navigation lights, what does a single white light visible from all
directions (360 degrees) indicate at night?
A. A power-driven vessel underway
B. A sailing vessel under sail
C. A vessel at anchor
D. A vessel engaged in fishing
Correct answer: C
RATIONALE: Rule 30 of the COLREGS specifies that a vessel at anchor shall exhibit an
all-round white light where it can best be seen .
6. What is the "height of tide"?
A. The vertical distance between the seabed and the water surface
B. The vertical distance between chart datum and the water surface
C. The depth of water
, D. The height of waves
Correct answer: B
RATIONALE: Height of tide is the vertical distance between chart datum and the
current water surface. Adding height of tide to charted depth gives actual depth of water .
7. What color is a port lateral buoy in the IALA A buoyage system when returning
from sea?
A. Red
B. Green
C. Yellow
D. Black
Correct answer: B
RATIONALE: In the IALA A system, used in Europe and Australia, the port side of a
channel is marked with green buoys when returning from sea. This is opposite to the IALA
B system used in the Americas .
8. Which type of tide has a larger than average range and occurs at new and full
moon?
A. Neap tide
B. Spring tide
C. Ebb tide
D. Flood tide
Correct answer: B
RATIONALE: Spring tides occur at new and full moon when the sun and moon are
aligned, producing the largest tidal range .
9. What is the primary purpose of a nautical chart?
A. To show only marina locations
B. To provide information about depths, hazards, aids to navigation, and coastline
C. To predict wind speed
LICENSE AND CREDENTIALS (SLC)
EXAM QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS) PLUS
RATIONALES 2026 Q&A | INSTANT
DOWNLOAD PDF.
Core Domains
• COLREGS (Collision Regulations) and Navigation Rules
• Nautical Charts and Chartwork
• Tides, Currents, and Tidal Calculations
• Buoyage Systems and Aids to Navigation (IALA-A and IALA-B)
• Weather Systems and Forecasting
• Sail Trim, Rigging, and Points of Sail
• Anchoring, Mooring, and Docking Procedures
• Safety, Emergency Response, and Man Overboard Recovery
• Boat Systems and Engine Operations
Introduction
The NauticEd International Sailing License and Credentials (SLC) examination assesses the
knowledge and practical competence required to charter a sailboat in the Mediterranean and
worldwide. This comprehensive assessment evaluates understanding of COLREGS,
chartwork, tides, buoyage systems, weather, sail trim, anchoring, docking, and emergency
procedures. Questions are structured as multiple-choice and scenario-based items requiring
,applied seamanship judgment. Emphasis is placed on real-world decision-making, safety,
and the ability to skipper a vessel competently. The SLC requires completion of the Bareboat
Charter Master bundle, logged sailing experience, and a practical on-water assessment.
Section One: Questions 1–100
1. According to the COLREGs, what is your primary obligation as the give-way vessel
when risk of collision exists?
A. Maintain course and speed
B. Take early and substantial action to keep well clear
C. Sound one prolonged blast to signal your intentions
D. Reduce speed and wait for the stand-on vessel to act
Correct answer: B
RATIONALE: Rule 8 of the COLREGS states that any action taken to avoid collision
shall be positive, made in ample time, and shall result in passing at a safe distance. Early
and substantial action is required .
2. What is the "Course Over Ground" (COG) of a vessel?
A. The direction the vessel is heading through the water
B. The actual direction the vessel is moving over the earth's surface
C. The compass heading adjusted for variation and deviation
D. The direction of the wind relative to the vessel
Correct answer: B
RATIONALE: COG is the actual direction of a vessel's movement relative to the earth's
surface, accounting for current, wind, and leeway. It differs from heading, which is the
direction the bow points .
3. What is the primary purpose of a vessel's "holding tank"?
A. To store fresh water for long voyages
B. To contain sewage and prevent its discharge in restricted waters
C. To store fuel for the engine
,D. To act as a reserve bilge pump reservoir
Correct answer: B
RATIONALE: A holding tank is part of a marine sanitation device (MSD). It collects
and stores sewage from the vessel's heads so it can be pumped out at a shoreside facility or
discharged only when legally permitted .
4. A weather forecast reports "Small Craft Advisory." What does this indicate?
A. A tsunami warning for small harbors
B. A warning for high winds and seas dangerous to small vessels
C. An alert for heavy fog reducing visibility
D. A notice of large vessel traffic in the area
Correct answer: B
RATIONALE: A Small Craft Advisory warns mariners of hazardous conditions for small
boats, usually defined by sustained winds (e.g., 20–33 knots) and/or dangerous sea
conditions .
5. In the context of navigation lights, what does a single white light visible from all
directions (360 degrees) indicate at night?
A. A power-driven vessel underway
B. A sailing vessel under sail
C. A vessel at anchor
D. A vessel engaged in fishing
Correct answer: C
RATIONALE: Rule 30 of the COLREGS specifies that a vessel at anchor shall exhibit an
all-round white light where it can best be seen .
6. What is the "height of tide"?
A. The vertical distance between the seabed and the water surface
B. The vertical distance between chart datum and the water surface
C. The depth of water
, D. The height of waves
Correct answer: B
RATIONALE: Height of tide is the vertical distance between chart datum and the
current water surface. Adding height of tide to charted depth gives actual depth of water .
7. What color is a port lateral buoy in the IALA A buoyage system when returning
from sea?
A. Red
B. Green
C. Yellow
D. Black
Correct answer: B
RATIONALE: In the IALA A system, used in Europe and Australia, the port side of a
channel is marked with green buoys when returning from sea. This is opposite to the IALA
B system used in the Americas .
8. Which type of tide has a larger than average range and occurs at new and full
moon?
A. Neap tide
B. Spring tide
C. Ebb tide
D. Flood tide
Correct answer: B
RATIONALE: Spring tides occur at new and full moon when the sun and moon are
aligned, producing the largest tidal range .
9. What is the primary purpose of a nautical chart?
A. To show only marina locations
B. To provide information about depths, hazards, aids to navigation, and coastline
C. To predict wind speed
