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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 601–700 of 5,775 · page 7 of 58

  1. #668 What provides the majority of strength to an aluminum-sided container?
  2. #669 The weight of the container and its contents is supported on deck by what part(s)?
  3. #670 Which statement concerning the lashings of containers with solid bar or wire rope lashings is TRUE?
  4. #671 On the fully containerized ship, approximately one-third or more of the cargo is on deck above the rolling center. Top stowed containers are subject t...
  5. #672 You are planning the stowage of two incompatible products on your multiple-product tankship. What will NOT provide the minimum required segregation?
  6. #673 You are on a multiple product tankship and carrying methyl acrylate, diethanolamine, and triethylamine. Which statement is TRUE?
  7. #674 You have orders to load cargoes of carbon disulfide, diisopropylamine and pyridine on your multi-product tankship. Which statement is TRUE?
  8. #675 You are on a multiple-product chemical tanker. The loading plan includes cargoes of diethylenetriamine and formamide. Which statement concerning the s...
  9. #676 You are carrying cargoes of crotonaldehyde, phosphoric acid, and morpholine on your multiple-product tankship. Which of the following statements is TR...
  10. #677 You have orders to load cargoes of carbon disulfide, diisopropylamine and pyridine on your multi-product tankship. Which statement is true?
  11. #678 You are on a multiple-product chemical tanker and will carry cargoes of ethanolamine, methyl acrylate, and glycerine. Which statement is true?
  12. #679 You are on a multiple-product chemical tanker and will carry cargoes of butyric acid, propylene oxide, and octyl alcohol. Which statement is true?
  13. #680 You are on a multiple-product chemical tanker and will carry cargoes of allyl alcohol, benzene, and propanolamine. Which of the following is true?
  14. #681 You are on a multiple-product chemical tanker and will carry cargoes of isophorone, ethylenediamine, and creosote. Which of the following is TRUE?
  15. #682 According to the Chemical Data Guide, which reactive group(s) is/are not compatible with the products polybutene and o-xylene?
  16. #683 Which product(s) is(are) compatible with the product ethylene cyanohydrin?
  17. #684 You are ordering ships' stores. Which statement is TRUE?
  18. #685 Which statement is NOT true concerning the stowage of class 1 explosives?
  19. #686 You receive a package, for shipment aboard your vessel, containing Class 1 explosives. The package is damp, moldy and stained. You must __________.
  20. #688 You will load class 1.2 commercial explosives and need to construct a portable magazine. The magazine MUST __________.
  21. #689 You are loading a cargo tank on your container ship. The tank displays the red label as shown in illustration D023DG below. Which statement is TRUE? illustration
  22. #690 According to the Chemical Data Guide, which material is not compatible with vinylidene chloride (inhibited)?
  23. #691 Nonflammable gases should have what kind of label?
  24. #692 Which statement concerning castor oil is TRUE?
  25. #693 What produces the MOST dangerous vapors?
  26. #694 Your containership has a container displaying a hazardous cargo placard. The placard has the number 2282 on it. This indicates that it is carrying wha...
  27. #695 What is an explosion hazard when exposed to flame?
  28. #696 Sulfuric acid is a __________.
  29. #697 Your containership has a container displaying a hazardous cargo placard. The placard has the number 2199 on it. This indicates that it is carrying wha...
  30. #698 Your containership has a container displaying a hazardous cargo placard. The placard has the number 2224 on it. This indicates that it is carrying wha...
  31. #700 The flash point of vinyl chloride is __________.
  32. #701 The label required for magnesium scrap is __________.
  33. #702 Corrosive liquids and acids should have which kind of label?
  34. #703 Corrosive liquids and acids should have what kind of label?
  35. #704 Flammable liquids should have what kind of label?
  36. #705 Nonflammable gases should have what kind of label?
  37. #706 What is the threshold limit value (TLV) for a product of PHTHALIC ANHYDRIDE?
  38. #707 What is the TLV of cyclohexanol?
  39. #708 Grade E combustible liquids are those having flash points of __________.
  40. #709 Which of the following product(s) would be classified as grade E?
  41. #710 The appearance of Bunker C and fuel oils are dark colored liquids, and __________ .
  42. #711 According to the Chemical Data Guide, fuel oil number 6 has a flash point (degrees F) of __________.
  43. #712 When heated to breakdown, tetraethyl or tetramethyl lead compounds emit highly toxic fumes of __________.
  44. #713 You are loading propanolamine and spill a small quantity on deck. According to the Chemical Data Guide, you would expect its odor to be __________.
  45. #714 If you came into contact with nitrobenzene while disconnecting the cargo hose, you should be aware that it is __________.
  46. #715 Triethylene glycol fires may be extinguished by __________.
  47. #716 According to the Chemical Data Guide, what is NOT a recommended extinguishing agent for an ethylene cyanohydrin fire?
  48. #717 A synonym for chloroform is __________.
  49. #718 According to the Chemical Data Guide, which material would corrode upon contact with aniline?
  50. #719 You are loading benzyl chloride and a small quantity spills on deck. According to the Chemical Data Guide, which of the following may be used as a sub...
  51. #720 What is the proper first aid for LPG in the eye?
  52. #721 According to the Chemical Data Guide, what are the flammable limits of ethylene oxide?
  53. #722 You are transferring a cargo of ethyl chloride and a small amount spills into the water around your vessel. What does the Chemical Data Guide indicate...
  54. #723 What is an example of a grade A flammable liquid?
  55. #724 According to the Chemical Data Guide, what does ethyl chloride produce when ignited?
  56. #725 During transfer operations, ethyl chloride spills into the water. According to the Chemical Data Guide, at what temperature will the ethyl chloride bo...
  57. #726 According to the Chemical Data Guide, propylene oxide is assigned a health hazard rating of 3,2,2. What does the last digit "2" of the rating mean?
  58. #727 According to the Chemical Data Guide, what is a recommended extinguishing agent for an ethyl chloride fire?
  59. #728 According to the Chemical Data Guide, which extinguishing agent is recommended for use in fighting an ethylamine fire?
  60. #729 Which extinguishing agent is effective in combating an isoprene fire?
  61. #730 What is the lowest temperature at which a liquid gives off sufficient vapors to form a flammable mixture with air in the presence of an ignition sourc...
  62. #731 What is the flash point of iso-Hexane?
  63. #732 According to the Chemical Data Guide, the flash point for the grade B flammable liquid piperylene is __________.
  64. #733 According to the Chemical Data Guide, to what chemical family does 1,3 - pentadiene belong?
  65. #734 What is the Vapor pressure of ethylene oxide at 46° C?
  66. #735 What is the Reid vapor pressure of a grade B product?
  67. #736 What is the Reid vapor pressure of allyl chloride?
  68. #737 What is the boiling point of carbon disulfide?
  69. #739 According to the Chemical Data Guide, what is a characteristic of allyl chloride?
  70. #740 Which of the following is classified as a flammable liquid?
  71. #741 Which is an example of a grade B flammable liquid?
  72. #742 What is a grade B flammable liquid?
  73. #743 Which is a grade B flammable liquid?
  74. #744 Which of the following would be a good extinguishing agent for a grade B product of 1,3-Pentadiene?
  75. #745 What is a major health hazard of the product tert-butylamine?
  76. #746 Which of the flash points would indicate a grade D combustible liquid?
  77. #747 Grade D liquids are those having flash points of __________.
  78. #748 An example of a grade D product is __________.
  79. #749 Which cargo is considered volatile?
  80. #750 You are loading epichlorohydrin onto your barge. According to the Chemical Data Guide, you could expect to detect a leak by smell if the concentration...
  81. #751 According to the Chemical Data Guide, epichlorohydrin is a(n) __________.
  82. #752 In order to determine the fire and explosion hazard data for naphtha, you would use that information contained in the Chemical Data Guide for which ch...
  83. #753 Depending on its concentration, which product(s) can be classified as either grade D or E?
  84. #754 The flash point of a product is 100°F. What can happen if it is heated above 110°F?
  85. #755 According to the Chemical Data Guide, which extinguishing agent should be used on a petrolatum fire in an open area?
  86. #756 If a crew member is exposed to phenol by way of skin or eye contact, you should IMMEDIATELY __________.
  87. #757 Camphor oil is classified as a __________.
  88. #758 Which flash point would indicate a grade E combustible liquid?
  89. #759 Grade E liquids are those having a flash point of __________.
  90. #760 Heavy fuel oils when spilled are __________.
  91. #761 In accordance with regulations, ethylene oxide shall be loaded below what temperature?
  92. #762 When stowing hazardous materials on deck, lashing of such cargo is permitted if __________.
  93. #763 Protective clothing must be worn while sampling hazardous cargo on a tankship, and as a minimum includes __________.
  94. #764 You are transporting dangerous cargo on your vessel. You must inspect this cargo __________.
  95. #765 You are on a cargo vessel carrying toluol in bulk in portable tanks. Which is a requirement for pumping the toluol?
  96. #766 You are transporting dangerous cargo on your vessel. The Dangerous Cargo Manifest must be signed by the __________.
  97. #767 Your tankship is carrying a cargo of styrene. Which of the following is NOT a requirement for carriage of this cargo?
  98. #768 You have loaded dangerous cargo on your vessel and must fill out a Dangerous Cargo Manifest. In which publication would you find the requirements to c...
  99. #769 Your U.S. tankship is designed to carry anhydrous ammonia in bulk. The keel was laid in 1980. Which statement concerning the carriage of this cargo is...
  100. #770 You are on a multiple-product chemical tanker with orders to load diethylamine. What is NOT a requirement for transporting this cargo?

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.