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Deck · 3,245 questions

Safety - USCG Exam Questions

Firefighting, lifesaving appliances and survival craft, emergency procedures, first aid, and pollution prevention regulations.

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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Questions 1,701–1,800 of 3,245 · page 18 of 33

  1. #1847 Keel scantlings of any vessel are greatest amidships because __________.
  2. #1848 The "margin plate" is the __________.
  3. #1849 The terms "ceiling" and "margin plate" are associated with the __________.
  4. #1850 A term applied to the bottom shell plating in a double-bottom ship is __________.
  5. #1851 In a transversely framed ship, the transverse frames are supported by all of the following EXCEPT __________.
  6. #1852 In a longitudinally-framed ship, the longitudinal frames are held in place and supported by athwartship members called __________.
  7. #1853 When the longitudinal strength members of a vessel are continuous and closely spaced, the vessel is __________.
  8. #1854 A vessel having continuous closely spaced transverse strength members is __________.
  9. #1855 In ship construction, frame spacing is __________.
  10. #1856 Why are most break bulk vessels built with the transverse framing system rather than the longitudinal system?
  11. #1857 Transverse frames are more widely spaced on a ship that is designed with the __________.
  12. #1858 What is the purpose of cant frames in steel vessels?
  13. #1859 Reinforcing frames attached to a bulkhead on a vessel are called __________.
  14. #1860 Lighter longitudinal stiffening frames on the vessel's side plating are called __________.
  15. #1861 The term "scantlings" refers to the __________.
  16. #1862 The garboard strake is the __________.
  17. #1863 The strake on each side of the keel is called a __________.
  18. #1864 In vessel construction, the garboard strake is __________.
  19. #1865 Another name for the garboard strake is the __________.
  20. #1866 The term "strake" is used in reference to __________.
  21. #1867 The joint formed when two steel shell plates are placed longitudinally side to side is called a __________.
  22. #1868 The joint formed when two steel plates are placed end-to-end is called a __________.
  23. #1869 Owing to the greater girth of a ship amidships than at the ends, certain strakes are dropped as they approach the bow and stern to reduce the amount o...
  24. #1870 To reduce the number of strakes at the bow, two strakes are tapered and joined at their ends by a single plate. This plate is known as a __________.
  25. #1871 Which arrangement of shell plating is used most in modern shipbuilding?
  26. #1872 What is NOT an advantage of ship construction methods using welded butt joints in the shell plating?
  27. #1873 Which is NOT an advantage of the flush method of welded shell plating?
  28. #1874 Shell plating that has curvature in two directions and must be heated and hammered to shape over specially prepared forms is called __________.
  29. #1875 Shell plating is __________.
  30. #1876 The function of the bilge keel is to __________.
  31. #1877 Bilge keels are more effective at dampening rolls as the __________.
  32. #1878 Which statement about bilge keels is CORRECT?
  33. #1879 The fore and aft run of deck plating which strengthens the connection between the beams and the frames and keeps the beams square to the shell is call...
  34. #1880 To rigidly fasten together the peak frames, the stem, and the outside framing, a horizontal plate is fitted across the forepeak of a vessel. This plat...
  35. #1881 Panting frames are located in the __________.
  36. #1882 A thirty pound plate would be __________.
  37. #1883 The thickness of a 30.6 pound plate is __________.
  38. #1884 What term indicates the line drawn at the top of the flat plate keel?
  39. #1885 What descriptive term indicates that the dimension is measured from the inner face of the shell or deck plating?
  40. #1886 Which term indicates the rise in height of the bottom plating from the plane of the base line?
  41. #1887 By definition, a "spar deck" is the __________.
  42. #1888 A vessel's "quarter" is that section which is __________.
  43. #1889 The point that is halfway between the forward and after perpendicular and is a reference point for vessel construction is the __________.
  44. #1890 The vessel's "quarter" is located __________.
  45. #1891 What term indicates the length measured along the summer load line from the intersection of that load line with the foreside of the stem and the inter...
  46. #1892 The space above the engine room is called the __________.
  47. #1893 The purpose of a bilge well is to __________.
  48. #1894 A "strongback" refers to a __________.
  49. #1895 The beam of a vessel refers to the __________.
  50. #1896 Freeboard is measured from the upper edge of the __________.
  51. #1897 Molded depth is measured from the __________.
  52. #1898 The upward slope of a vessels bottom from the keel to the bilge is called __________.
  53. #1899 What term indicates a curvature of the decks in a longitudinal direction?
  54. #1901 What term indicates the midships portion of a vessel that has a constant cross section?
  55. #1902 What term indicates the immersed body of the vessel aft of the parallel mid-body?
  56. #1903 What term indicates the outward curvature of the hull above the waterline?
  57. #1904 What term indicates an inward curvature of the ship's hull above the waterline?
  58. #1905 The fittings used to secure a watertight door are known as __________.
  59. #1906 In nautical terminology a "dog" is a __________.
  60. #1907 The perforated, elevated bottom of the chain locker, which prevents the chains from touching the main locker bottom and allows seepage water to flow t...
  61. #1908 The purpose of sheer in ship construction is to __________.
  62. #1909 A set of interior steps on a ship leading up to a deck from below is known as __________.
  63. #1910 A cofferdam is __________.
  64. #1911 The Sheer Plan __________.
  65. #1912 The half-breadth plan is __________.
  66. #1913 The body plan of a vessel is a(n) __________.
  67. #1914 Freeboard is measured from the upper edge of the __________.
  68. #1915 The distance between the waterline of a vessel and the main deck is called __________.
  69. #1916 A long ton is __________.
  70. #1917 A weight of 1,000 short tons is equivalent to __________.
  71. #1918 A short ton is a unit of weight consisting of __________.
  72. #1919 What is the difference between net tonnage and gross tonnage?
  73. #1920 Gross tonnage indicates the vessel's __________.
  74. #1921 Tonnage openings must be closed by means of __________.
  75. #1922 A well in the uppermost deck of a shelter deck vessel which has only a temporary means of closing for the purpose of gaining an exemption from tonnage...
  76. #1923 The term that indicates how many tons of cargo a vessel can carry is __________.
  77. #1924 The total weight of cargo, fuel, water, stores, passengers and crew, and their effects, that a ship can carry, is the __________.
  78. #1925 Sometimes it is desirable to connect a member both by riveting and welding. Which statement is TRUE concerning this procedure?
  79. #1926 A welded joint's effectiveness is considered __________.
  80. #1927 What welding pattern is NOT used to permanently attach a stiffener to a plate?
  81. #1928 The welds used to attach stiffeners to a plate are known as __________.
  82. #1929 The welds used to join shell plates in flush construction are known as __________.
  83. #1930 Which type of weld testing can be used to detect internal flaws?
  84. #1931 Which type of weld testing can be used to detect internal flaws?
  85. #1932 Which weld fault can only be detected by a method that examines the internal structure of a weld?
  86. #1933 Ultrasonic testing is used to determine the thickness of a vessel's shell plating and to __________.
  87. #1934 The type of welding employed in shipyards is primarily __________.
  88. #1935 A floating vessel will behave as if all of its weight is acting downward through the __________.
  89. #1936 The water in which a vessel floats provides vertical upward support. The point through which this support is assumed to act is known as the center of...
  90. #1937 In small-angle stability, when external forces exist, the buoyant force is assumed to act vertically upwards through the center of buoyancy and throug...
  91. #1938 A vessel behaves as if all of its weight is acting downward through the center of gravity, and all its support is acting upward through the __________...
  92. #1939 The value of the maximum righting arm depends on the position of the center of buoyancy and the __________.
  93. #1940 The upward pressure of displaced water is called __________.
  94. #1941 What abbreviation represents the height of the center of buoyancy?
  95. #1942 Stability is determined by the relationship of the center of gravity and the __________.
  96. #1943 Stability is determined principally by the location of the center of gravity and the __________.
  97. #1944 Stability is determined principally by the location of two points in a vessel: the center of buoyancy and the __________.
  98. #1945 Stability is determined principally by the location of the point of application of two forces: the downward-acting gravity force and the __________.
  99. #1946 Stability is determined principally by the location of the point of application of two forces: the upward-acting buoyant force and the __________.
  100. #1947 The geometric center of the underwater volume is known as the __________.

Safety questions: what to expect

Q How many Safety questions are in the Deck pool?

There are 3,245 Safety 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 Safety module from the same pool.

Q What score do I need to pass the Safety module?

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

Q Are these the real USCG Safety 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.