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Deck · 5,775 questions

Deck General - USCG Exam Questions

Seamanship in the broad sense: marlinespike, ground tackle and anchoring, mooring and towing, weather, stability basics, and day-to-day vessel operations.

Every question below is a real U.S. Coast Guard exam question with four choices. Answer one and the correct choice is revealed instantly, with the USCG reference and illustration where the question uses one.

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All Deck General questions

Questions 2,001–2,100 of 5,775 · page 21 of 58

  1. #2140 A load line certificate is valid for how many years?
  2. #2141 You are offloading garbage to another ship. Your records must identify that ship by name and show her __________.
  3. #2143 How long is a credential issued by the U.S. Coast Guard for Master of Towing Vessels valid for?
  4. #2144 The best method to secure a tow line to a cleat is to __________.
  5. #2145 Towlines should be inspected for chafing where the towline __________.
  6. #2146 How many B-II fire extinguishers must be in the machinery space of a 175-foot long fishing vessel propelled by engines with 3200 brake horsepower?
  7. #2147 In illustration D024DG below, which item is rigged to transmit the thrust from one barge to another barge when going ahead? illustration
  8. #2148 Coast Guard regulations require that all of the following emergencies be covered at the periodic drills on a fishing vessel EXCEPT __________.
  9. #2149 Nylon rope is often used in the makeup of a towline because it __________.
  10. #2150 Which towing method maintains the most control over the tow?
  11. #2151 Which statement is TRUE concerning the placard entitled "Discharge of Oil Prohibited"?
  12. #2152 You are loading at port A, governed by the summer load line mark, for a voyage to port B, governed by the winter mark. The fresh water allowance is 10...
  13. #2153 How many B-II hand portable fire extinguishers are required in the machinery space of a 260 GT uninspected tow vessel with 2400 B.H.P.?
  14. #2154 What condition must be met during a stability test on an inspected vessel?
  15. #2155 Which statement about the deck line is TRUE?
  16. #2156 You are in the North Sea, which is a special area listed in ANNEX V of MARPOL. How many miles from land must you be to throw broken plywood dunnage ov...
  17. #2157 Your fishing vessel is required to have a compass. It must also have a(n) __________.
  18. #2158 The equipment required to remove an on-deck oil spill on a barge transferring oil must either be carried on board or __________.
  19. #2159 A "loose" tow may cause all of the following EXCEPT __________.
  20. #2160 To allow for the rise or fall in tide and for change in draft of a tankship during cargo transfer, cargo hoses must be suspended with __________.
  21. #2161 Keeping the draft at or below the load line mark will insure that the vessel has adequate __________.
  22. #2162 What shape barge offers the least resistance in river towing?
  23. #2163 No vessel may use or carry an oil transfer hose unless it meets certain requirements. Which of the following is NOT among those requirements?
  24. #2164 In illustration D024DG below, what is the purpose of item "G"? illustration
  25. #2165 You are being towed by one tug. As you lengthen the bridle legs you __________.
  26. #2166 What is NOT considered "jewelry"?
  27. #2167 How many B-II fire extinguishers must be in the machinery space of a 175-foot long fishing vessel propelled by engines with 4000 brake horsepower?
  28. #2168 Each pressure gauge used in an oil transfer operation must be accurate to within __________.
  29. #2169 Which towing vessels are NOT required to have an internal communication system between the engine room and the operating station?
  30. #2171 What product is considered a noxious liquid substance for regulatory purposes?
  31. #2172 Which list is NOT required to be provided as part of the appendices of the Shipboard Oil Pollution Emergency Plan?
  32. #2173 Vessels to which Annex V to MARPOL 73/78 applies may discharge garbage containing plastics __________.
  33. #2174 Which of the following is required to have a Shipboard Oil Pollution Emergency Plan?
  34. #2175 When must the owner or Master of a towing vessel retest a towline or remove it from service?
  35. #2176 A towing hawser is readied for service by __________.
  36. #2177 A documented oceangoing fishing vessel is required to have emergency instructions posted if it __________.
  37. #2178 When towing, what is the main reason for using a chain bridle on a wire hawser?
  38. #2179 Which item in illustration D024DG below, parting which item is one of the greatest hazards of pushing ahead? illustration
  39. #2180 A tow astern is veering from side to side on its towline. The best way of controlling the action is to __________.
  40. #2181 You attach a line to a stationary barge lying off your starboard beam in order to maneuver it into position to make up tow. The line used to do this i...
  41. #2182 What could be used as fairleads on a towed vessel?
  42. #2183 What is the greatest danger of an overriding tow?
  43. #2184 In illustration D024DG below what does item "A" represent? illustration
  44. #2185 What is the minimum number of bolts required in a temporary bolted flange oil hose coupling?
  45. #2186 Who has the authority to grant an alternate procedure for oil transfer operations?
  46. #2187 Which statement is TRUE?
  47. #2188 The measurement of the amount of force a towing vessel is capable of applying to a motionless tow is called __________.
  48. #2189 In the navigable waters of the United States, Annex V to MARPOL 73/78 is NOT applicable to a(n) __________.
  49. #2190 Towing vessel fire protection regulations define a "fixed fire-extinguishing system" to include all of the following EXCEPT a __________.
  50. #2191 Fire protection regulations for towing vessels require that drills be conducted on board the vessel as if there were an actual emergency. Drills inclu...
  51. #2192 According to U.S. regulations, what vessels are required to have the "Discharge of Oil Prohibited" placard?
  52. #2193 A tow of 9 barges is made up three abreast and three long. The towboat is faced up to the center string which is known as the __________.
  53. #2194 A towing hawser should be stowed __________.
  54. #2195 The circular steel structure installed around the propeller of a towboat is the __________.
  55. #2196 The term "bollard pull" refers to a towing vessel's __________.
  56. #2197 You are inspecting the nonmetallic oil transfer hoses on the vessel you operate. The maximum allowable pressure of the hose is 70 psi. Your inspection...
  57. #2198 When oil is accidentally discharged into the water, what should you do after reporting the discharge?
  58. #2199 In securing a towing cable, consideration must be given to letting go in an emergency. The possible whip of towlines when released can be overcome by...
  59. #2200 When towing astern, you notice that another vessel is about to pass between the towing vessel and the tow. You should immediately __________.
  60. #2201 Which type of fixed fire protection system is approved for use on board uninspected vessels?
  61. #2202 You are preparing to load fuel oil on a vessel of 300 gross tons constructed after June 30, 1974. Before loading, you must check that the fuel oil tan...
  62. #2203 Kort nozzles are installed around the propellers of some vessels to __________.
  63. #2204 When hip towing, a line led from the bow of the towing vessel aft to the vessel being towed would be a __________.
  64. #2205 U.S. regulations require all tankships of 150 GT and above and all other ships of 400 GT and above, to prepare and maintain which of the following?
  65. #2206 A tow of 9 barges is made up three abreast by three long. The towboat is faced up to the last barge of the center string. The outer two strings of bar...
  66. #2207 During the annual inspection by the owner, each nonmetallic oil transfer hose must not burst, bulge, leak, or abnormally distort under static liquid p...
  67. #2208 A towing vessel should be on the crest of a wave at the same time as its tow and in the trough at the same time. The term used to describe this is ___...
  68. #2209 When barge headlogs do not meet or are not even with one another, the void or opening between them is called a __________.
  69. #2210 An ocean tow is sinking in deep water. Attempts to sever the towing hawser are unsuccessful. Which action should now be taken?
  70. #2211 Which vessel is required to have a shipboard oil pollution emergency plan?
  71. #2212 Where are the transfer procedures for oil products are required to be posted?
  72. #2213 You are in the process of adding a barge to your tow. A line run from your power capstan and around timber heads on your tow is made fast on the new b...
  73. #2214 When "checking down" a barge using a check line you should use __________.
  74. #2215 "Hanging a barge off" means to __________.
  75. #2216 A long pole with a hook at one end, used to reach for lines, is known as a __________.
  76. #2217 You would NOT secure a line to a __________.
  77. #2218 The section of each end of a barge which is heavily reinforced to take the pressure of pushing is called the __________.
  78. #2219 You are preparing to load fuel oil on a vessel of 1,600 gross tons constructed after June 30, 1974. Before loading, you must check that the fuel oil t...
  79. #2220 When making up a long, large coastwise tow, which of the following procedures is INCORRECT?
  80. #2221 Is tripping limited to harbor and coastal towing?
  81. #2222 A cargo hose is marked with which of the following?
  82. #2223 When towing another vessel, the length of the towing line should be __________.
  83. #2224 What is the minimum number of B-II hand portable fire extinguishers required on board a 105 GT uninspected towboat with a 7500 B.H.P. plant (including...
  84. #2225 When towing another vessel astern, the length of the towline should be __________.
  85. #2226 According to regulations, a cargo hose used for transferring liquefied gases must have a bursting pressure of __________.
  86. #2227 International Oil Pollution Prevention (IOPP) Certificates are required for each U.S. oil tanker at or above how many gross registered tons?
  87. #2228 The Certificate of Freeboard is the __________.
  88. #2229 The regulations that were passed to implement MARPOL 73/78 concerning oil pollution apply to a U.S. flag vessel that sails on which waters?
  89. #2230 When paying out nylon line from around the bitts __________.
  90. #2231 The MINIMUM acceptable size for a towing bridle would be that size in which the safe working load (SWL) of each leg of the bridle is equal to ________...
  91. #2232 Fairleads perform the same function as __________.
  92. #2233 A device used to tighten up remaining slack in wire rope when you are making up to a tow in inland waters is a __________.
  93. #2234 Which factor(s) can affect the performance of a river towboat?
  94. #2235 A tow consists of 8 barges: 6 jumbo barges made up 3 abreast and 2 long, with 2 standard barges abreast as lead barges. How long is this tow?
  95. #2236 The biggest problem you generally encounter while towing a single tow astern is __________.
  96. #2237 A texas bar __________.
  97. #2238 When being towed by one tug, the towing bridle should be connected to towing __________.
  98. #2239 According to U.S. regulations, normally, where are manholes in LFG located?
  99. #2240 A large metallic device, mounted directly in the piping (usually located at the dock near the point where the vapor hose is attached), designed to pre...
  100. #2241 A face line is used to __________.

Deck General questions: what to expect

Q How many Deck General questions are in the Deck pool?

There are 5,775 Deck General questions on this site, every one released by the U.S. Coast Guard or taken from the National Maritime Center's sample examinations, with its correct answer. The exam draws its Deck General module from the same pool.

Q What score do I need to pass the Deck General module?

Most USCG exam modules, including Deck General, require 70 percent to pass. Rules of the Road modules require 90 percent.

Q Are these the real USCG Deck General exam questions?

Yes. They are the published U.S. Coast Guard questions, matched to the National Maritime Center's 2026 sample examinations. Answer any question to see the correct choice, the USCG reference and the illustration where the question uses one.

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About the Deck question pool

The Deck pool holds the current U.S. Coast Guard questions for every deck credential, from Able Seaman and the OUPV six-pack up to unlimited Master. Each question is multiple choice with four options, graded instantly, with the USCG reference shown where one exists.