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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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All Safety questions

Questions 1,501–1,600 of 3,245 · page 16 of 33

  1. #1646 When abandoning ship in cold waters, what actions can be taken to minimize the effects of entering the water?
  2. #1647 The officer responsible for the sanitary condition of the engineering department is the __________.
  3. #1648 What represents poor sanitary procedures?
  4. #1649 Small hull leaks can be temporarily repaired by __________.
  5. #1650 Damaged bulkheads often take a permanent set which is independent of the panting or bulge caused by water pressure. To control this, you should ______...
  6. #1651 The BEST information on the nature and extent of damage to the vessel is obtained from __________.
  7. #1652 If a vessel takes a sudden, severe list or trim from an unknown cause, you should FIRST __________.
  8. #1653 You must shore up a bulkhead due to solid flooding forward. The bulkhead approximates a rectangle. The center of pressure of the shores on the bulkhea...
  9. #1654 You must shore up the collision bulkhead due to solid flooding forward. The bulkhead approximates an inverted triangle. The center of pressure of the...
  10. #1655 The objective of shoring a damaged bulkhead is to __________.
  11. #1656 When shoring a damaged bulkhead, effort should be taken to spread the pressure over the __________.
  12. #1657 Strengthening damaged bulkheads by using wood or steel is called __________.
  13. #1658 Your vessel has been damaged and you must shore a bulkhead. You should cut the shore __________.
  14. #1659 A crack in the deck plating of a vessel may be temporarily prevented from increasing in length by __________.
  15. #1660 Progressive flooding is controlled by securing watertight boundaries and __________.
  16. #1661 What must be accurately determined to assess the potential for progressive flooding after a vessel has been damaged?
  17. #1662 Which type of hull damage should be repaired FIRST?
  18. #1663 Repairing damage to the hull at or above the waterline reduces the threat of __________.
  19. #1664 Control of flooding should be addressed __________.
  20. #1665 Progressive flooding may be indicated by __________.
  21. #1666 The order of importance in addressing damage control is __________.
  22. #1667 After an explosion, repair of emergency machinery and services should be accomplished __________.
  23. #1668 A wooden plug fitted tightly in the vent of a damaged tank may prevent the tank from __________.
  24. #1669 The wooden plug inserted in the vent of a damaged tank should be removed if you are going to __________.
  25. #1670 The two factors which make underwater hull repair difficult are accessibility and the __________.
  26. #1671 When patching holes in the hull, pillows, bedding, and other soft materials can be used as __________.
  27. #1672 When plugging holes below the waterline you should __________.
  28. #1673 In plugging submerged holes; rags, wedges, and other materials should be used in conjunction with plugs to __________.
  29. #1674 The two courses of action if the underwater hull is severely damaged are to plug the openings or to __________.
  30. #1675 Your vessel has grounded on a bar. What should you do?
  31. #1676 Which statement about damage control is TRUE?
  32. #1677 Your vessel has been damaged and is partially flooded. The first step to be taken in attempting to save the vessel is to __________.
  33. #1678 The wooden plug fitted tightly in the vent of a damaged tank may prevent the tank from __________.
  34. #1679 Your vessel has been loaded in a sagging condition. Enroute you encounter heavy weather and notice buckling in the midships deck plating of your vesse...
  35. #1680 You are fighting a fire in a cargo hold on your vessel. Which action is most important concerning the stability of the vessel?
  36. #1681 Free communication will adversely affect transverse stability only when the flooded space is __________.
  37. #1682 Free communication effect is in direct proportion to __________.
  38. #1683 The greatest effect on stability occurs from loose liquids flowing __________.
  39. #1684 The most detrimental effect on initial stability is a result of liquids __________.
  40. #1685 Many vessels are provided with flume tanks, which also have a dump tank located under the flume tanks. In the event the ship is damaged, you could dum...
  41. #1686 The percentage of the total surface area or volume of a flooded compartment that can be occupied by water caused by damage is known as __________.
  42. #1687 A tank with internal dimensions of 40 feet X 20 feet X 12 feet is pressed with fuel oil weighing 54 pounds per cubic foot. What is the weight, in shor...
  43. #1688 The horizontal fore-and-aft movement of a vessel is called __________.
  44. #1689 The horizontal port or starboard movement of a vessel is called __________.
  45. #1690 The angular movement of a vessel about a horizontal line drawn from its bow to its stern is __________.
  46. #1691 The vertical motion of a floating vessel is known as __________.
  47. #1692 Horizontal fore or aft motion of a vessel is known as __________.
  48. #1693 Horizontal transverse motion of a vessel is known as __________.
  49. #1694 The vertical motion of a floating vessel in which the entire hull is lifted by the force of the sea is known as __________.
  50. #1695 Rolling is angular motion of the vessel about what axis?
  51. #1696 Pitching is angular motion of the vessel about what axis?
  52. #1697 Yawing is angular motion of the vessel about what axis?
  53. #1698 Angular motion about the longitudinal axis of a vessel is known as __________.
  54. #1699 Heave is motion along the __________.
  55. #1700 Angular motion about the vertical axis of a vessel is called __________.
  56. #1701 What is NOT a motion of the vessel?
  57. #1702 The time required to incline from port to starboard and back to port again is called __________.
  58. #1703 The time required to incline from bow down to stern down and return to bow down again is called __________.
  59. #1704 The tendency of a vessel to return to its original trim after being inclined by an external force is __________.
  60. #1705 Addition of weight to a vessel will ALWAYS __________.
  61. #1706 Your vessel has been in a collision. After assessing the damage, you begin down flooding. This will cause the KB to do what?
  62. #1707 How do you determine the weight of the vessel that is supported by the ground when a vessel has run aground?
  63. #1708 If your vessel is aground at the bow, it would be preferable that any weight removals be made from the __________.
  64. #1709 Your vessel is damaged and listing to port. There is a short rolling period around the angle of list. The port side freeboard is reduced to 1 foot. Th...
  65. #1710 A vessel aground may have negative GM since the __________.
  66. #1711 If the cause of a sudden severe list is negative initial stability, counterflooding into empty tanks may __________.
  67. #1712 With damaged floating vessels, the most important consideration is the preservation of __________.
  68. #1713 During counterflooding to correct a severe list aggravated by an off-center load, your vessel suddenly takes a list to the opposite side. You should _...
  69. #1714 Intact buoyancy is a term used to describe __________.
  70. #1715 To increase the extent of flooding your vessel can suffer without sinking, you could __________.
  71. #1716 Your vessel has been holed in #1 hold and partially flooded. The hole is plugged against further flooding. In calculating the effect of the flooding o...
  72. #1717 A vessel is described as a two compartment vessel when it __________.
  73. #1718 Your vessel is damaged with no list, but down by the stern. There is progressive flooding and trim by the stern is increasing. What is the effect on t...
  74. #1719 A continual worsening of the list or trim indicates __________.
  75. #1720 Your vessel is damaged, listing to port and on occasion flopping to the same angle to starboard. It has a long, slow, sluggish roll around the angle o...
  76. #1721 Your vessel is damaged and is listing to port. The rolling period is short. There is sufficient freeboard so that deck edge submersion is not a proble...
  77. #1722 You are on the SS American Mariner and involved in a collision. Your draft has increased uniformly and there is about 4 feet of freeboard remaining. T...
  78. #1723 Your vessel is listing 4° to port and has a short rolling period. There is loose firefighting water in the hull. The ship is trimmed down by the head...
  79. #1724 Your vessel is damaged and partially flooded. It is listing 12° to port and trimmed 8 feet down by the head. It has a long, slow, sluggish roll. Which...
  80. #1725 Your vessel is damaged, and there is no list or trim. The rolling period is short. The freeboard before the damage was 12'02" (3.7 meters). It is now...
  81. #1726 Your vessel is damaged and listing to port. The rolling period is long, and the vessel will occasionally assume a starboard list. Which action should...
  82. #1727 Your vessel is damaged and on an even keel. There is no trim. The freeboard is reduced to less than 1 foot. The rolling period is very long, and the v...
  83. #1728 Damage stability is the stability __________.
  84. #1729 The stability which remains after a compartment is flooded is called __________.
  85. #1730 Aboard damaged vessels, the MOST important consideration is preserving __________.
  86. #1731 When flooding occurs in a damaged vessel, reserve buoyancy __________.
  87. #1732 You are fighting a fire in a watertight compartment using hoses and salt water. Stability may be reduced because of __________.
  88. #1733 Your vessel was damaged and initially assumed a significant list and trim; however, further increase has been slow. Based on this data, what should yo...
  89. #1734 To prevent loss of stability from free communication flooding you should __________.
  90. #1735 Jettisoning weight from topside __________.
  91. #1736 Reserve buoyancy is the __________.
  92. #1737 Reserve buoyancy is __________.
  93. #1738 The volume of a vessel's intact watertight space above the waterline is its __________.
  94. #1739 Which is an indication of reserve buoyancy?
  95. #1740 Reserve buoyancy is __________.
  96. #1741 Your vessel has run aground and is touching bottom for the first one-quarter of its length. What is the LEAST desirable method from the standpoint of...
  97. #1742 Your vessel has run hard aground in an area subject to heavy wave action. Backing full astern failed to free her. Which action should be taken next?
  98. #1743 Your ship of 12,000 tons displacement has a center of gravity of 21.5 feet above the keel. You run aground and estimate the weight aground is 2500 ton...
  99. #1744 What would have the greatest affect on a vessel's longitudinal strength?
  100. #1745 Where are the draft marks required to be displayed on a ship?

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.