This is an interactive test. Read each question and select the proper answer by clicking on the appropriate answer. If a "Y" appears, your choice is correct. If a "N" appears, more study may be in order.
31: An embarked Pilot __________.
Y a. is a specialist hired for his local navigational knowledge N b. is solely responsible for the safe navigation of the vessel N c. relieves the Master of his duties N d. relieves the officer of the watch 81: Your 199 GT tugboat is on a 675 mile coastwise voyage. What percentage of the deck crew must be Able Bodied Seamen?
N a. 0% N b. 25% N c. 50% Y d. 65% 134: Your ship is steaming at night on gyro-pilot when you notice that the vessel's course is slowly changing to the right. Which action should you take FIRST?
N a. Call the Master. Y b. Change to hand steering. N c. Notify the engine room of the steering malfunction. N d. Send the Quartermaster to the emergency steering station. 282: The owner, agent, Master or person-in-charge of a "T-Boat" involved in a marine casualty causing injury that requires professional medical treatment must __________.
N a. immediately notify the nearest USCG MSO, MIO, or Group Office N b. keep all voyage records and make them available to Coast Guard investigators N c. file a written report (CG2692) of the casualty within five days Y d. All of the above 312: If you are bunkering and you close off one tank in the line of tanks being filled, the rate of flow to other open tanks on the same line will __________.
Y a. increase N b. decrease N c. stop N d. remain constant 354: A "stopper" is __________.
Y a. a short length of line used for temporarily holding another line N b. a snatch block for handling a topping lift N c. an engine order telegraph N d. the brake on a cargo winch 370: Cottonseed oil is classed as a __________.
Y a. combustible liquid N b. flammable liquid N c. flammable solid N d. poison B 409: A tanker is loaded with 5,000 barrels of petroleum. The cargo was loaded at a temperature of 70°F, and the coefficient of expansion is .0004. What is the net amount in barrels of cargo loaded?
N a. 4800 Y b. 4980 N c. 5020 N d. 5200 655: Good seamanship while towing in heavy weather requires all of the following EXCEPT __________.
N a. reducing speed to reduce surging on the towline N b. lashing down or stowing all loose gear N c. dogging all hatches and watertight doors Y d. streaming all of your towing hawser 799: Temporary Certificates of Inspection are effective until the __________.
N a. Solas Certificate is issued N b. Load Line Certificate is renewed N c. classification society approval is issued Y d. permanent Certificate of Inspection is issued 819: Which pump must be primed?
N a. Rotary pump N b. Reciprocating pump Y c. Centrifugal pump N d. All of the above 837: When may foreign licensed or documented personnel be employed on a US-flag towing vessel?
Y a. While on a foreign voyage and outside US jurisdiction, in order to meet manning requirements N b. While operating above the US outer continental shelf N c. On vessels operating on domestic voyages only N d. Never, under any circumstances 839: The valve on the discharge side of a cargo pump on a tank vessel will usually be a __________.
N a. butterfly valve N b. spectacle valve Y c. check valve N d. globe valve 846: A vessel proceeding along the bank of a river or channel has the tendency to __________.
N a. continue in line with the bank N b. hug the bank Y c. sheer away from the bank N d. increase speed 895: Which factor would NOT lead to removing a towline from service?
N a. An excessive number of miles of towing service. N b. Failing a tensile strength test that proved the towline was no longer appropriate for expected sea conditions. Y c. When heavy grease on the towline saturates the core of the wire rope. N d. Its surface condition is noted, including its corrosion and discoloration. 946: Which measure should NOT be taken to reduce the pounding of a vessel in a head sea?
Y a. Add ballast in the after peak. N b. Add ballast forward. N c. Alter course. N d. Reduce speed. 1104: Nylon line can be dangerous because it __________.
N a. breaks down when wet N b. kinks when wet N c. is not elastic Y d. stretches 1109: Pinching of the cargo hose between the vessel and the dock should be prevented by __________.
Y a. adjusting the hose supports N b. laying out an excess length of hose on deck N c. tying off the topping lifts and runners to winch heads N d. All of the above 1119: A single fitting installed in a pipeline that either blanks off the pipe or allows a full flow passage of a liquid through the pipe is referred to as a __________.
N a. blind flange N b. pivot coupling N c. quick-release coupling Y d. spectacle flange 1138: A vessel arrives in the port of Los Angeles from a foreign port and discharges some of its inward foreign cargo. What additional manifest is required?
N a. Discharge Manifest N b. Inward Foreign Manifest N c. Pro Forma Manifest Y d. Traveling Manifest 1191: Which statement is TRUE about the use of a "gob rope"?
N a. The gob rope is a mooring line for tyhing up lighters for working cargo alongside a vessel anchored in an open roadstead. Y b. The gob rope is used to secure the towline aft over the centerline of a tug.. N c. The gob rope is a line hung over a vessel's side to assist in boarding. N d. The gob rope is a rope used in mooring a vessel to a buoy. 1305: What is an advantage of the 6X19 class of wire rope over the 6X37 class of wire rope of the same diameter?
N a. Greater holding power N b. Better for towing N c. More resistance to elongation Y d. More resistance to corrosion 1402: What form of ice is of land origin?
N a. Shuga N b. Floe N c. Spicule Y d. Bergy bit 1452: The helm command "Check her" means __________.
N a. test the steering control N b. read the compass heading N c. stop the swing using hard over rudder Y d. slow the swing using moderate rudder 1476: How is the size of chain determined?
N a. Length of link in inches Y b. Diameter of metal in link in inches N c. Links per fathom N d. Weight of stud cable in pounds 1497: Which of the pictures in illustration DO30DG represents a round turn and two half hitches? (DO30DG )
N a. E Y b. F N c. Q N d. S 1500: Sometimes it is desirable to connect a member both by riveting and welding. Which statement is TRUE concerning this procedure?
N a. Tearing through the member is more likely in this type connection. N b. The weld may be broken by the stresses caused by riveting. N c. The weld increases the tensile stress on the rivet heads. Y d. The welding must be completed before the riveting commences. 1748: An Official Logbook is required on which vessel?
N a. A 150-G.T. tug going from Boston to New Orleans. Y b. A 100-G.T. tug going from New York to San Pedro, California. N c. A 50-G.T. tug going from Miami to Seattle. N d. A 199-G.T. tug on a coastwise trip of 650 miles. 1778: You are landing a single-screw vessel with a right-handed propeller port side to a dock. As you approach the dock, you back down on your engine with rudder amidships. You would expect the vessel to __________.
N a. drift away from the dock N b. lose headway without swinging Y c. swing its stern towards the dock N d. swing its stern away from the dock 1872: In a national emergency, when communicating via the Navy, messages are sent by precedence. A message designated FLASH will be delivered within __________.
N a. 3 hours to start of business the following day N b. 1 to 6 hours N c. 30 minutes to 1 hour Y d. less than 10 minutes 2189: You are conducting trials to determine the maneuvering characteristics of your vessel. While making a turn you take the ranges and bearings of an isolated light with the results shown. Based on this information, what is the transfer for a turn of 75°? (D034DG )
N a. 340 yards (306 meters) Y b. 280 yards (252 meters) N c. 230 yards (207 meters) N d. 190 yards (171 meters) 2203: A Chinese stopper (two lines) will hold best when you __________.
N a. fasten the bitter ends to the mooring line with half hitches Y b. twist the ends together and hold them in the direction of the pull N c. twist the ends together and hold them in the direction opposite to the pull N d. twist the ends together and hold them at right angles to the mooring line 2250: You have determined the maneuvering characteristics of your vessel by taking radar ranges and bearings of an isolated light while making a turn. The results are as shown. Based on this data what is the transfer for a turn of 90°? (D035DG )
Y a. 380 yards N b. 430 yards N c. 485 yards N d. 525 yards 2251: The letter I indicates the keel. Which of the following plates is NOT part of the keel? (D033DG )
N a. Center vertical keel N b. Rider plate Y c. Longitudinal girder N d. Flat plate keel 2282: Using the graph in illustration D008DG, if the dry bulb temperature is 77° and the wet bulb temperature is 69°, what is the relative humidity in a cargo hold? (D008DG )
Y a. 67% N b. 70% N c. 77% N d. 81% 2299: You are on a multiple-product chemical tanker and will carry cargoes of isophorone, ethylenediamine, and creosote. Which of the following is TRUE?
Y a. All of these cargoes are compatible. N b. Isophorone is incompatible with ethylenediamine but may be stowed adjacent to creosote. N c. All of these cargoes are incompatible. N d. Ethylenediamine is compatible with isophorone but both are incompatible with creosote. 2344: An example of an anchor which has a stock is a __________.
N a. Bruce anchor N b. Dunn anchor N c. Hook anchor Y d. Danforth anchor 2375: You are on a multiple-product chemical tanker and will carry cargoes of ethanolamine, methyl acrylate, and glycerine. Which statement is true?
N a. All of these cargoes are mutually incompatible. N b. Glycerine may be stowed adjacent to methyl acrylate but must be segregated from ethanolamine. N c. Methyl acrylate and ethanolamine are compatible but both must be segregated from glycerine. Y d. Glycerine is compatible with both of the other cargoes. 2451: A safety shackle is identified by its __________.
N a. shape Y b. pin N c. certification stamp N d. color code 2582: What is usually NOT required in preparing a hold for reception of a bulk grain cargo?
N a. Remove residue of previous cargo. N b. Remove loose rust and scale. Y c. Steam clean areas obstructed by structural members. N d. Spray or fumigate any insect colonies. 2644: The boat is stowed on the davit rather than on a cradle with which type of davit?
Y a. Crescent N b. Sheath-screw boom N c. Quadrantal N d. Radial 2690: When must the Master of a vessel log the position of load line marks in relation to the surface of the water in the Official Logbook?
N a. Once a day N b. At the change of every watch N c. Only when in fresh or brackish water Y d. Prior to getting underway 2690: When must the Master of a vessel log the position of load line marks in relation to the surface of the water in the Official Logbook?
N a. Once a day N b. At the change of every watch N c. Only when in fresh or brackish water Y d. Prior to getting underway 2870: A single-screw vessel going ahead tends to turn more rapidly to port because of propeller __________.
N a. discharge current N b. suction current Y c. sidewise force N d. thrust 2882: What does the line labeled "MS" denote on the Great Lakes load line model shown? (D031DG )
N a. Mean sea level N b. Midseason N c. Maximum submergence Y d. Midsummer 2896: You are proceeding against the current on a river in the Great Lakes System. You are meeting a downbound vessel. Both vessels are power-driven. The other vessel sounds one short blast. You must __________.
N a. change course to port N b. hold course and speed N c. sound three short blasts Y d. sound one short blast 3018: When turning a vessel in shallow water, which statement is TRUE?
N a. The rate of turn is increased. N b. The rate of turn is decreased. Y c. The turning diameter increases. N d. The turning diameter remains the same. 3032: Ice is often strong enough to halt navigation through the St. Lawrence Seaway by mid- __________.
N a. October N b. November Y c. December N d. January 3489: You are lifting a 5-ton weight with a single whip rove on a swinging boom set at an angle of 60° to the horizontal. Use the formula for the size of a shackle with a safe working load and determine the minimum size shackle that should be used to secure the head block to the boom?
N a. 1 inch N b. 1 3/8 inch N c. 1 1/2 inch Y d. 1 7/8 inch 3511: The wheel on the windlass with indentations for the anchor chain is the __________.
N a. grabber Y b. wildcat N c. locking ring N d. pawl 3604: The Jews' harp is indicated by which letter? (D038DG )
Y a. K N b. J N c. H N d. F 4036: When a cargo boom or crane is rated at varying capacities, there will be a table at the controls which relates safe working load to __________.
N a. winch speed N b. boom strength Y c. load radius N d. cable strength 4044: You are arriving in port and are assigned to anchor in anchorage circle B-4. It has a diameter of 500 yards and your vessel's LOA is 484 feet. If you anchor in 8 fathoms at the center of the circle, what is the maximum number of shots of chain you can use and still remain in the circle?
N a. 6 shots N b. 5 shots N c. 4 shots Y d. 3 shots 4061: The two factors which make underwater hull repair difficult are accessibility and the __________.
N a. availability of tools N b. shape of the hull Y c. pressure exerted by the water N d. threat of progressive flooding 4061: The two factors which make underwater hull repair difficult are accessibility and the __________.
N a. availability of tools N b. shape of the hull Y c. pressure exerted by the water N d. threat of progressive flooding 4117: Cargo securing for Ro-Ro is based on the concept of __________.
N a. solid packing Y b. rapid loading and discharge N c. vessel loaded full and down to her marks N d. palletized cargo 4119: The securing of passenger cars on a Ro-Ro vessel requires __________.
N a. simple and lightweight equipment N b. low labor intensive equipment N c. specially designed equipment to avoid vehicle damage Y d. All of the above 4136: A disadvantage of using chain lashing on heavy vehicles aboard Ro-Ro vessels is that it __________.
N a. can wrap around cargo N b. is easily damaged N c. is affected by temperature Y d. does not absorb shock 4202: Which of the following statements is/are TRUE concerning cranes being installed on the centerline of vessels?
N a. One crane is able to work both sides of the ship. N b. One crane is able to work one end of two adjacent hatches. N c. They are more economical and weigh less. Y d. All of the above 4225: What does item "G" refer to in this illustration of a 30-ton pedestal crane? (D045DG )
N a. Mast N b. Pillar Y c. Turntable N d. Pedestal