Deck · 2026 NMC sample exam Q101–Q109
Master/Chief Mate of Unlimited Tonnage Practice Test
Every module on the National Maritime Center's 2026 sample examination for Master/Chief Mate of Unlimited Tonnage: 9 modules, 360 real questions, graded instantly.
The Master/Chief Mate of Unlimited Tonnage exam is split into 9 modules, each graded separately. The table below is the National Maritime Center's own 2026 sample examination for this credential, module by module, with every question matched to our bank of released U.S. Coast Guard exam questions. Open a module to practice its questions one at a time, or sit the whole module as a timed exam.
What is on the Master/Chief Mate of Unlimited Tonnage exam
| Module | Questions | Illustrations | Practice |
|---|---|---|---|
| Q101 Deck General - Part I | 50 | 0 | Practice → |
| Q102 Deck General - Part II | 50 | 1 | Practice → |
| Q103 Deck Safety | 70 | 3 | Practice → |
| Q104 Deck Safety - Stability Problems | 15 | 1 | Practice → |
| Q105 Navigation General - Near Coastal | 70 | 7 | Practice → |
| Q106 Navigation General - Oceans | 70 | 2 | Practice → |
| Q107 Chart 13205TR | 10 | 0 | Practice → |
| Q108 Navigation Problems - Near Coastal | 10 | 2 | Practice → |
| Q109 Navigation Problems - Oceans | 15 | 0 | Practice → |
| Total | 360 | 16 |
Most modules require 70 percent to pass; Rules of the Road modules require 90 percent.
Q101 · 50 questions
Deck General - Part I
- 1. Which U.S. agency assigns an official number to a vessel?
- 2. Which party administers the load line regulations?
- 3. Considering the manning requirements for U.S. vessels (100 gross tons and above), your cargo vessel has a deck crew of 20 men, exclusive of the officers. How ma...
- 4. Which term defines a Contract of Affreightment covering the movement of a particular cargo from one designated port to another at a specified rate for each ton...
- 5. What form of ice is of land origin?
Showing the first 5 of 50. Start at question 1 and use Next to work through the module →
Q102 · 50 questions · 1 illustration
Deck General - Part II
- 1. Which of the following statement(s) is/are TRUE regarding lashing requirements to secure vehicles aboard Ro-Ro vessels?
- 2. What is NOT required as special safety equipment on a tankship carrying hazardous cargoes in bulk?
- 3. Which is a precaution you should take before bunkering?
- 4. Which of the following describes (auto) ignition temperature?
- 5. Which signal must you display at night on a docked tank barge to show that it is loading or discharging flammable liquid cargo?
Showing the first 5 of 50. Start at question 1 and use Next to work through the module →
Q103 · 70 questions · 3 illustrations
Deck Safety
- 1. Which term describes the geometric center of the underwater volume of a vessel?
- 2. You are in a survival craft broadcasting a distress message. What information would be essential to your rescuers?
- 3. A vessel aground may have negative GM since the __________.
- 4. According to the Code of Federal Regulations, which of the following statements is correct regarding the steering gear on a vessel contracted for after June 9,...
- 5. A definite advantage of using water as a fire extinguishing agent is its characteristic of __________.
Showing the first 5 of 70. Start at question 1 and use Next to work through the module →
Q104 · 15 questions · 1 illustration
Deck Safety - Stability Problems
- 1. Use the material in Section 1, the blue pages, of the Stability Data Reference Book. If the KG is 25.2 feet, and the drafts are: FWD 27'-11", AFT 28'-09"; at wh...
- 2. A vessel has a maximum allowable draft of 28 feet in salt water and a fresh water allowance of 8 inches. At the loading berth, the water density is 1.011. To wh...
- 3. Your vessel measures 127 feet long by 17 feet in beam. If the natural rolling period at a draft of 7'-10" is 5 seconds, what is the GM?
- 4. The SS AMERICAN MARINER is ready to bunker with drafts of FWD 11'-01", AFT 14'-07". After all bunkers are on board, soundings indicate the tonnages shown in the...
- 5. You are at sea on a vessel that has a beam of 50 feet, and you calculate the period of roll to be 22 seconds. What is the vessel's metacentric height?
Showing the first 5 of 15. Start at question 1 and use Next to work through the module →
Q105 · 70 questions · 7 illustrations
Navigation General - Near Coastal
- 1. You will be transiting a traffic lane with a wreck having a charted depth of 40 feet. The Zone of Confidence (ZOC) for that area of the chart is ZOC B. Which of...
- 2. When within 300 miles of a named tropical storm or hurricane it is standard practice to send weather reports at which time interval?
- 3. What is the purpose of the "reference hand" on an aneroid barometer?
- 4. Which statement about gyrocompass error is TRUE?
- 5. You are underway on course 050°T and your maximum speed is 12 knots. The eye of a hurricane bears 120°T, 110 miles from your position. The hurricane is moving t...
Showing the first 5 of 70. Start at question 1 and use Next to work through the module →
Q106 · 70 questions · 2 illustrations
Navigation General - Oceans
- 1. You are on a vessel at 0400 ZT on 3 July, and the ZD for your position is -8. What is the GMT?
- 2. Which current is responsible for the movement of large quantities of ice into the North Atlantic shipping lanes?
- 3. How can you estimate the position of a tropical storm's center?
- 4. If your vessel were proceeding down river (descending), what would a green square marker with a green reflector border on the right bank indicate?
- 5. Which is the most commonly encountered fog at sea?
Showing the first 5 of 70. Start at question 1 and use Next to work through the module →
Q107 · 10 questions
Chart 13205TR
- 1. The Light List shows that a navigational light has a nominal range of 19 miles and a height above water of 52 feet (15.8 meters). Your height of eye is 42 feet...
- 2. At 1705: Race Rock Light bears 099°True, Orient Point Light bears 176°True, Bartlett Reef Light bears 083°True. What is your vessel's position?
- 3. If there is no set or drift, at what time would you be abeam of Bartlett Reef Light?
- 4. At 1718, Bartlett Reef Light bears 050°T at a distance of 1.5 miles. From this position, you change course to 128°T. At 1750 Race Rock Light bears 336°T, Little...
- 5. If your fathometer is set on fathoms, what should your fathometer read at 1750?
Showing the first 5 of 10. Start at question 1 and use Next to work through the module →
Q108 · 10 questions · 2 illustrations
Navigation Problems - Near Coastal
- 1. You are on a voyage from Valdez, AK, to the Panama Canal. The distance from pilot to pilot is 4950 miles. The speed of advance is 15.0 knots. You estimate a lay...
- 2. Your vessel arrives in port with sufficient fuel to steam 812 miles at 15 knots. If you are unable to take on bunkers, at what speed must you proceed to reach y...
- 3. The propeller on a vessel has a diameter of 21.5 feet and a pitch of 24.5 feet. What would be the apparent slip if the vessel cruised 458 miles in a 23 hour day...
- 4. On 3 October your 0330 zone time (ZD + 5) DR position is LAT 47°41'N, LONG 86°49'W. At that time, you observe Polaris bearing 357.5°pgc. The chronometer time of...
- 5. You desire to make good a true course of 007°. The variation is 5°E, magnetic compass deviation is 3°W, and gyrocompass error is 2°E. A southwest by west wind p...
Showing the first 5 of 10. Start at question 1 and use Next to work through the module →
Q109 · 15 questions
Navigation Problems - Oceans
- 1. On 7 November your 0830 zone time fix gives you a position of LAT 27°36.0'N, LONG 162°19.0'W. Your vessel is on course 289°T and your speed is 19.0 knots. Local...
- 2. You are underway on course 128°T at a speed of 17.6 knots. You sight a daymark bearing 126°T at a radar range of 4.3 miles at 1649. If you change course at 1654...
- 3. On 12 June your 1845 DR position is LAT 21°47'N, LONG 46°52'W when you observe a faint unidentifiable star through a break in the clouds. The star bears 174.0°T...
- 4. On 18 May your 1030 ZT DR position is LAT 18°30'N, LONG 62°31'W. You are on course 286°T, speed 24 knots. Determine your 1200 position using the following obser...
- 5. On 13 August your 0345 ZT DR position is LAT 21°35.0'N, LONG 135°26.0'W. You are on course 052°T at a speed of 14 knots. What will be the zone time of sunrise a...
Showing the first 5 of 15. Start at question 1 and use Next to work through the module →
Master/Chief Mate of Unlimited Tonnage exam FAQ
Q How many questions are on the Master/Chief Mate of Unlimited Tonnage exam?
The National Maritime Center's 2026 sample examination for Master/Chief Mate of Unlimited Tonnage has 360 questions across 9 modules: Q101 Deck General - Part I (50 questions), Q102 Deck General - Part II (50 questions), Q103 Deck Safety (70 questions), Q104 Deck Safety - Stability Problems (15 questions), Q105 Navigation General - Near Coastal (70 questions), Q106 Navigation General - Oceans (70 questions), Q107 Chart 13205TR (10 questions), Q108 Navigation Problems - Near Coastal (10 questions) and Q109 Navigation Problems - Oceans (15 questions). Every one is multiple choice with four answers, and you can practice all of them on this page.
Q What modules are on the Master/Chief Mate of Unlimited Tonnage exam?
The modules are Q101 Deck General - Part I (50 questions), Q102 Deck General - Part II (50 questions), Q103 Deck Safety (70 questions), Q104 Deck Safety - Stability Problems (15 questions), Q105 Navigation General - Near Coastal (70 questions), Q106 Navigation General - Oceans (70 questions), Q107 Chart 13205TR (10 questions), Q108 Navigation Problems - Near Coastal (10 questions) and Q109 Navigation Problems - Oceans (15 questions). Each module is graded separately, so you need to pass every one to pass the exam.
Q What score do I need to pass the Master/Chief Mate of Unlimited Tonnage exam?
Most USCG exam modules require 70 percent to pass; Rules of the Road modules, where they apply, require 90 percent. Check the specific requirements for your endorsement with the National Maritime Center.
Q Are these the real questions?
Yes. They are the questions on the National Maritime Center's published 2026 sample examination for Master/Chief Mate of Unlimited Tonnage (modules Q101–Q109), matched to our bank of released U.S. Coast Guard exam questions. The exam you sit draws from the same pools.
Q Can I take a timed Master/Chief Mate of Unlimited Tonnage practice exam?
Yes. Subscribers can sit any module as an official sample exam in its published order, timed or untimed, with answers revealed at the end. Free accounts can build one 10-question practice exam and answer questions on every module page.
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