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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 3,001–3,100 of 5,775 · page 31 of 58

  1. #3166 If you see someone fall overboard from a MODU, you should __________.
  2. #3167 If a man falls overboard from a rig under tow, you should FIRST __________.
  3. #3168 Survival practice in the mooring system is to slack off the tensions on the leeward side and __________.
  4. #3169 While the COASTAL DRILLER is elevated, the out-of-level alarm indicates that hull inclination exceeds 0.3°. What should you do?
  5. #3170 What is the function of an air receiver in the compressed air system on a MODU?
  6. #3171 On a MODU, the possibility of a blowout makes which type of diesel engine shutdown desirable?
  7. #3172 Why is electrical power preferred over mechanical power for driving heavy machinery on drilling rigs?
  8. #3173 For well control, the American Petroleum Institute recommends that hydraulic units have sufficient horsepower to close the annular preventer in ______...
  9. #3174 Lost circulation can cause a kick or blowout by __________.
  10. #3175 The term "lost circulation" refers to situations when drilling fluid is lost by __________.
  11. #3176 Why must the drilled hole be filled with drilling mud when tripping the drill string out of the hole?
  12. #3177 While drilling at 4,000 feet with casing set to 2,000 feet, the well kicks with mud weight in the hole. Mud pumps are shut down and the blowout preven...
  13. #3178 The test for determining the formation fracture pressure after drilling out a seat is called a __________.
  14. #3179 Large quantities of gas in the shale shaker area may be an indication of __________.
  15. #3180 A hydraulic accumulator aboard a MODU is designed to __________.
  16. #3181 The main function of the drawworks on a MODU is to __________.
  17. #3182 For most MODU engines, the fuel is __________.
  18. #3183 The element that supports the weight of the drill stem, allows the drill stem to rotate, and provides a pressure-tight seal and passageway for the dri...
  19. #3185 A heavy steel device that is set on the sea floor and used as a drilling template in offshore drilling operations is called a __________.
  20. #3186 In very deep water drilling, it becomes necessary to reduce tension caused by the weight of the riser joints. This is accomplished by using a(n) _____...
  21. #3187 The pipe and special fittings used on floating offshore drilling rigs to establish a connection between the top of the wellbore, which is on the ocean...
  22. #3188 When filling fuel-oil tank 6P on the DEEP DRILLER, it is necessary to open valve __________.
  23. #3189 When filling fuel-oil tank 4S on the DEEP DRILLER, it is necessary to open valve __________.
  24. #3190 What does the term "head" mean when applied to a pump?
  25. #3191 A hydraulic accumulator aboard a MODU is designed to __________.
  26. #3192 What type of test determines the pressure at which the formation immediately below the last set casing will take fluid?
  27. #3193 A large valve, usually installed above the ram preventers, that forms a seal in the annular space between the pipe and wellbore or, if no pipe is pres...
  28. #3194 A low pressure annular preventer which is used to direct flow of kick fluids away from the rig floor is called a __________.
  29. #3195 The retrievable subsea units that contain the pilot valves and regulators for operating the subsea blowout preventers are called __________.
  30. #3196 The storage device for nitrogen-pressurized hydraulic fluid, which is used in closing the blowout preventers is called the __________.
  31. #3197 The heavy three-, four-, or six-sided length of pipe suspended from the swivel through the rotary table and connected to the topmost joint of drill pi...
  32. #3198 What is the female section of a tool joint called?
  33. #3199 The connected joints of pipe, usually made of three joints of pipe approximately 90 feet long, racked in the derrick when making a trip are called a _...
  34. #3200 The end of the joint with the exterior threads is called the __________.
  35. #3201 A heavy, thick-walled tube, usually steel, used between the drill pipe and the bit in the drill stem to weight the bit in order to improve its perform...
  36. #3202 An integral part of a blowout preventer that serves as the closing element on an open hole, and whose ends do not fit around the drill pipe but seal a...
  37. #3203 The pneumatic containers which store bulk dry mud additives and cement on a MODU are called __________.
  38. #3204 A series of trays with sieves that vibrate to remove cuttings from the circulating fluid in rotary drilling operations is called the __________.
  39. #3205 The series of valves used to control the return flow in well control operations is called the __________.
  40. #3206 The platform that supports the derrickman when tripping pipe is called the __________.
  41. #3207 A tool consisting of a handle and releasable chain used for turning pipe or fittings of a diameter larger than that which a pipe wrench would fit is c...
  42. #3208 What is a grooved pulley?
  43. #3209 A set of clamps that are latched onto the drill pipe to allow the driller to raise or lower the drill string out of or into the hole are the _________...
  44. #3210 The wire ropes of the riser tensioning system are attached to the __________.
  45. #3211 A device used to enlarge the size of an existing bore hole, having teeth arranged on its outside circumference to cut the formation as it rotates is a...
  46. #3212 You are transferring fuel from a supply vessel to your MODU. If you close off one tank in the line of tanks being filled, what will happen to the rate...
  47. #3213 What is a pinion in a jacking system?
  48. #3214 The operation of hoisting the drill stem out of and returning it to the wellbore is called a __________.
  49. #3215 When drilling from a MODU, the conductor casing is landed with its top extending to just __________.
  50. #3216 The space around a pipe in a wellbore, the outer wall of which may be the wall of either the borehole or the casing, is the __________.
  51. #3217 Most drill ships and barges have a walled opening below the derrick, open to the water's surface and through which various drilling tools can pass dow...
  52. #3218 In MODU drilling operations, the term tripping means __________.
  53. #3219 At the instant when a string of casing being run from a MODU is landed in the well head, __________.
  54. #3220 When drilling from a MODU the weight in air of tubular goods on the racks is reduced when run into the drilled hole because of the effect of _________...
  55. #3221 A frame with two, or sometimes four, arms through which are threaded the guidelines and which is used to keep the drill stem and bit in line with the...
  56. #3222 At the instant when a string of casing being run from a MODU is landed in the well head, __________.
  57. #3223 A large valve, usually installed above the ram preventers, that forms a seal in the annular space between the pipe and wellbore or, if no pipe is pres...
  58. #3224 The connected joints of pipe, usually made of three joints of pipe approximately 90 feet long, racked in the derrick when making a trip are called a _...
  59. #3225 A heavy, thick-walled tube, usually steel, used between the drill pipe and the bit in the drill stem to weight the bit in order to improve its perform...
  60. #3226 The vertical height and density of the drilling fluid are used to determine the __________.
  61. #3227 A well kick while drilling from a MODU will cause __________.
  62. #3228 The most accurate method for measuring drilling mud required to fill the hole when drill stem is removed is by use of a __________.
  63. #3229 A drilling bit which is doughnut shaped to permit recovery of the center portion of the hole drilled is called a __________.
  64. #3230 A casing string that is run below the previous casing string, but does not extend to the wellhead is called a __________.
  65. #3231 To prevent the riser system from buckling under its own weight, upward tension is provided by the __________.
  66. #3233 For the DEEP DRILLER, the maximum permissible offset which can be tolerated while drilling is __________.
  67. #3234 What is the weight in long tons of 180 barrels of 15 pound per gallon drilling mud?
  68. #3235 What is the weight of 100 barrels of 17 pound per gallon drilling mud?
  69. #3236 The sounding level of 12 lb. per gallon mud in mud pit 1S of the COASTAL DRILLER is 5.5 feet. What is the weight of the mud?
  70. #3237 The sounding level of 17 lb. per gallon mud in mud pit 2S of the COASTAL DRILLER is 7.75 feet. What is the weight of the mud?
  71. #3238 The required fireman's outfits required for MODU's are not to be used for any other purpose EXCEPT for the __________.
  72. #3239 What equipment is included in the fireman's outfit?
  73. #3240 On a MODU, a CO2 extinguisher is checked by __________.
  74. #3241 A CO2 extinguisher which has lost 10% of its charge must be __________.
  75. #3242 Clean air standards referred to as "Grade D" apply to compressed air for use in __________.
  76. #3244 Each fireman's outfit and its spare equipment on a MODU must be stowed __________.
  77. #3245 Any firefighting equipment that is carried in addition to the minimum required number on a MODU must __________.
  78. #3246 The size of fire hydrant hose connections must be either 1-1/2 inches or __________.
  79. #3247 Each fire hydrant serving machinery spaces containing oil fired boilers, internal combustion machinery, or oil fuel units must be equipped with a ____...
  80. #3248 On offshore drilling units, each fire station is required to be fitted with at least one spanner and at least one __________.
  81. #3249 On offshore drilling units, each fire station is required to be fitted with a hose which has a nominal diameter of __________.
  82. #3250 Fire extinguishers used on MODU's are numbered by size I through V, with I being __________.
  83. #3251 The international shore connection required on a MODU is designed to __________.
  84. #3252 Automatic mechanical ventilation shutdown is required for CO2 systems protecting the __________.
  85. #3253 What must be provided on a MODU helicopter deck that is equipped with fueling facilities?
  86. #3254 How many fireman's outfits are required on a MODU?
  87. #3256 What is best suited for fighting a fire in a ballast control room?
  88. #3257 On a MODU, a fixed carbon dioxide or other approved system must be installed __________.
  89. #3258 The preferred agent used in fighting a helicopter crash fire on a MODU is __________.
  90. #3259 What is the most vulnerable part of the fire main system on board an offshore rig?
  91. #3260 Smoking in bed on a MODU is prohibited __________.
  92. #3261 The primary danger in helicopter fires on a MODU is __________.
  93. #3262 The Coast Guard requires machinery spaces and enclosed mud handling spaces to have __________.
  94. #3263 On a MODU, the locker or space containing the self-contained breathing apparatus must __________.
  95. #3264 The signal to man emergency stations on MODU's is __________.
  96. #3265 Which information MUST be entered on the muster list?
  97. #3266 The MODU has suffered a casualty which requires an orderly evacuation of the unit using the lifeboats and liferafts. Among the items to accomplish in...
  98. #3267 At the required fire drill, all persons must report to their stations and demonstrate their ability to perform the duties assigned to them __________.
  99. #3268 Offshore drilling units must have at least two ring buoys with water lights that, when released from the mounting rack, activate a __________.
  100. #3269 The Master or person in charge on a MODU shall insure that line throwing equipment is not operated __________.

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.