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Any Deck Officer (Assistance Towing Endorsement (Additional Officer Endorsements))
Q461 — Assistance Towing
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1. Which is usually the most gentle way of riding out a severe storm on a larger vessel?
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2. Which action reduces the yawing of a vessel in a following sea?
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3. Which is an advantage of nylon rope over manila rope?
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4. Which best describes a "fishplate" used in towing?
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5. Where is the best location to install a towing hook?
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6. What is a "carrick bend" is used for?
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7. Under which condition is a tug likely to be tripped?
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8. When should you conduct a visual inspection of your towline?
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9. What could be used as fairleads on a towed vessel?
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10. What is the effect of excessive catenary in shallow water?
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11. The effect of ocean currents is usually more evident on a rig being towed than on a tug navigating independently because the __________.
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12. What is the effect of releasing the towline in a tripping situation?
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13. Which is the most effective method for towing and maneuvering on rivers and other restricted waters where wave action is limited?
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14. What equipment is NOT used to protect a towing hawser?
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15. Which factor(s) might indicate that a towline should be removed from service?
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16. In a following sea, a wave has overtaken your vessel and thrown the stern to starboard. To continue along your original course, which action should you take?
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17. Why is it good practice to use long towlines for ocean tows?
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18. What does "Hanging a barge off" refer to?
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19. You are heading into the sea during rough weather. What may happen if there is too much weight forward in your small boat?
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20. How do the height and location of a tug's towing bitts relate to the danger of tripping?
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21. In illustration D024DG below, which item is rigged to transmit the thrust from one barge to another barge when going ahead?
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22. What imminent danger results from tripping?
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23. Instead of whipping an end of a line, which knot can be used as a temporary means of preventing the line from unraveling?
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24. Which knot in illustration D030DG below should be used to secure a line to a spar when the pull is parallel to the spar?
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25. Which knot shown in illustration D030DG below is a French bowline?
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26. With a large ocean tow in heavy weather, which should be avoided
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27. To lead the towing hawser over the center of the stern when not under a strain you could take which action?
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28. What are the legs of a tow bridle are joined together with?
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29. On a long ocean tow, the bridle should be made up of two equal lengths of which material?
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30. When making up a long, large coastwise tow, which of the following procedures is INCORRECT?
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31. What is the name of the metal, teardrop-shaped object sometimes used within an eyesplice?
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32. 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 which of the following?
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33. What is the mechanical advantage of tackle number 7 as shown in illustration D029DG below?
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34. When running before a heavy sea, what will moving weights aft on the vessel accomplish?
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35. Which term defines when a boat turns broadside to heavy seas and winds, thus exposing the boat to the danger of capsizing?
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36. Which term defines when a vessel is swinging from side to side off course due to quartering seas?
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37. Which term is given to the placing a lashing across a hook to prevent a fitting from slipping out of the hook?
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38. Your vessel is broken down and rolling in heavy seas. How can you reduce the danger of capsizing?
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39. A natural fiber rope can be ruined by dampness. How is the line ruined?
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40. You are approaching a ship that is broken down and are preparing to take her in tow. BEFORE positioning your vessel to pass the towline, which action should you take?
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41. What is the purpose of a "check" line?
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42. Which trait makes Nylon line dangerous?
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43. An ocean towing bridle whose legs are of equal length, but too short, may cause which condition?
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44. The owner or Master of a vessel 39.4 feet in length or more pushing ahead or towing alongside in the navigable waters of the United States must ensure that each of the following is appropriate for the vessel's horsepower and tow arrangement EXCEPT which item?
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45. Which is TRUE when paying out nylon line from around the bitts?
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46. Which term describes a piece of small stuff (small line) secured to an object to prevent it from going adrift?
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47. Which is the primary advantage of using a chain bridle when towing astern offshore?
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48. What is the name of a small light tackle with blocks of steel or wood that is used for miscellaneous small jobs?
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49. A snatch block would most likely be used as a __________.
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50. You are steaming in a heavy gale and find it necessary to heave to. Under most circumstances, how is this best accomplished?
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51. Which synthetic rope has the greatest breaking strength?
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52. Which is the proper procedure when taking a length of new manila rope from the coil?
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53. Which term is used to describe the dip in a towline that acts as a shock absorber?
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54. A tow of 9 barges is made up three abreast and three long. The towboat is faced up to the center string. What is the name of this string?
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55. When you have a tow alongside, your stern should extend aft of the tow in order to __________.
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56. When being towed by one tug, how should the towing bridle be connected?
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57. When towing astern, what is the effect of increasing the catenary?
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58. You are towing astern in open shallow water. What action should you take if your tow sinks?
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59. While towing, bridle legs of unequal lengths may cause which condition?
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60. When towing, what is the main reason for using a chain bridle on a wire hawser?
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61. A towing vessel becomes tripped while towing on a hawser astern. What factor is LEAST important when assessing the risk of capsizing?
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62. Is tripping limited to harbor and coastal towing?
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63. A tug is "in irons" when held in a fixed position by __________.
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64. Which type of bridle is the most effective for a heavy ocean tow?
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65. What type of knot in illustration D030DG below is indicated by the Letter "W"?
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66. Which type of line would have the LEAST resistance to mildew and rot?
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67. Of which type of material may a towing hawser be constructed?
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68. Which type of towing hawser is preferred for towing astern?
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69. You are using tackle number 12 shown in illustration D029DG below to lift a weight of 300 lbs. If you include 10 percent of the weight for each sheave for friction, what is the pull on the hauling part required to lift the weight?
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70. Usually the most gentle way of riding out a severe storm on a larger vessel is __________.
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71. When working with any synthetic line, you should keep well clear of which situation?
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72. Yawing can be described as __________.
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73. You are attempting to take a dead ship in tow. All lines have been passed and secured. How should you get underway?
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74. You have a large, broken-down vessel in tow with a wire rope and anchor cable towline. Both vessels have made provision for slipping the tow in an emergency; however, unless there are special circumstances which is TRUE?
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75. A situation has occurred where it becomes necessary for you to be towed. What action should be taken to prevent your vessel from yawing?
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76. A situation has occurred in which your vessel must be towed. When the towing vessel passes the towing line to you, where should you secure the line?
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77. You have taken another vessel in tow. Which is an indicator that the towing speed is too fast?
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78. What is the name of the circular steel structure installed around the propeller (wheel) of a towboat?
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79. You are on a ship that has broken down and are preparing to be taken in tow. You will use your anchor cable as part of the towline. Which statement is TRUE?
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80. If the situation arose where it became necessary to tow a disabled vessel, which statement is TRUE concerning the towing line?
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81. The vessel shown in illustration D025DG has broken down and you are going to take her in tow. The wind is on her starboard beam. Both vessels are making the same amount of leeway. Where should you position your vessel when you start running lines?
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82. What type of knot in illustration D030DG below is indicated by the Letter "E"?
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83. What is the stress on the hauling part when lifting a 4,200 lbs. weight using a threefold purchase rove to advantage? (Allow 10 percent of the weight per sheave for friction.)
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84. Your vessel is running in a following sea. Which term defines the motion your vessel is experiencing?
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85. A "loose" tow may cause all of the following EXCEPT which choice?
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86. Fairleads perform the same function as which item?
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87. On a shallow water tow, which is TRUE concerning the catenary of the towline?
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88. The choice of length of tow bridle legs is governed by which of the following?
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89. What does the term "bollard pull" refer to on a towing vessel?
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90. What does the term "overriding" or "overrunning" when applied to towing, imply?
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91. When must the owner or master of a towing vessel retest a towline or remove it from service?
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92. Which is TRUE of a long splice in a three strand line?
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93. Which type of shackle or hook should be used When making up a tow connection?
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94. Why is it NOT advisable to use nylon for alongside towing?
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95. Which is one advantage of chain over wire rope for a tow bridle?
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96. What is a "carrick bend" used for?
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97. In illustration D024DG below, which item refers to the face wire?
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98. When you have a tow alongside, why should your stern extend aft of the tow?
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99. The vessel shown in illustration D025DG has broken down and you are going to take her in tow. The wind is coming from her starboard beam. You are making more leeway than she. Where should you position your vessel when you start running lines?
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100. Why is a chain bridle preferable to a wire rope towing bridle on a long ocean tow?
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