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.
26: The pivoting point of a fully loaded vessel with normal trim proceeding ahead at sea speed is __________.
N a. right at the bow Y b. one-third the length of the vessel from the bow N c. one-half the length of the vessel from the bow N d. two-thirds the length of the vessel from the bow 106: In relation to the turning circle of a ship, the term "kick" means the distance __________.
N a. around the circumference of the turning circle N b. gained at right angles to the original course N c. gained in the direction of the original course Y d. or throw of a vessel's stern from her line of advance upon putting the helm hard over 132: What is a characteristic of all centrifugal cargo pumps?
N a. They are self-priming. Y b. Decreasing the speed of rotation will decrease the discharge pressure. N c. Opening the discharge valve wider will increase the discharge pressure. N d. All of the above 144: The lookout sights a vessel dead ahead. This should be reported on the bell with __________.
N a. one bell N b. two bells Y c. three bells N d. four bells 239: Flame screens are used to __________.
N a. contain flammable fumes N b. protect firefighters from flames Y c. prevent flames from entering tanks N d. keep flames and sparks from getting out of an engine's exhaust system 248: Dunnage may be used to protect a cargo from loss or damage by _______________________ .
Y a. ship's sweat N b. inherent vice N c. tainting N d. hygroscopic absorption 380: The (auto)ignition temperature is that temperature at which_______.
Y a. no spark or flame is required to ignite gas or vapor N b. a fuel begins to give off explosive vapors N c. a fuel if ignited will continue to burn N d. a 1% mixture of the fuel with air will explode 436: The rudders are amidships and both screws are going ahead. What will happen if the starboard screw is stopped?
N a. The bow will go to port. Y b. The bow will go to starboard. N c. The bow will remain steady. N d. The stern will go to starboard. 475: In illustration D044DG, the mooring line labeled "F" is called a __________. (DO44DG )
N a. bow line Y b. breast line N c. forward spring line N d. None of the above 535: In illustration D044DG, the mooring line labeled "G" is called a(n) __________. (DO44DG )
N a. offshore bow line Y b. inshore bow line N c. forward breast line N d. forward spring line 560: You are loading a cargo that includes cylinders of acetylene aboard your break bulk vessel. Which statement is true?
Y a. The cylinders must be stowed at least 10 horizontal feet from corrosive materials in the same space. N b. Stowage in the upper deck-deck is considered to be the equivalent of "on deck" stowage for this cargo. N c. The cylinders must have a red label for flammability and a green label for compressed gas. N d. The cylinders may be protected from the radiant heat of the Sun by laying a tarp on them. 572: A vessel is entering port "A" for the first time and has a Pilot conning the vessel. The Master is unsure that the Pilot is taking sufficient action to prevent a collision. What should the Master do?
N a. Nothing; The Pilot is required by law and is solely responsible for the safety of the vessel. N b. State his concerns to the Pilot but do not interfere with the handling of the vessel. N c. Direct the Pilot to stop the vessel and anchor if necessary until the situation clears. Y d. Recommend an alternative action and if not followed relieve the Pilot. 580: Which statement is FALSE about using a wire bridle on an ocean tow?
N a. The inboard end of each bridle leg should have a large eye splice to fit over the bitts. Y b. The strength of each leg should be at least one-half that of the main towing hawser. N c. Each leg should be at least 60 to 90 feet long. N d. None of the above 827: The pitch of a propeller is a measure of the __________.
N a. angle that the propeller makes with a free stream of water N b. angle that the propeller makes with the surface of the water Y c. number of feet per revolution the propeller is designed to advance in still water without slip N d. positive pressure resulting from the difference of the forces on both sides of the moving propeller in still water without slip 980: The perforated, elevated bottom of the chain locker, which prevents the chains from touching the main locker bottom and allows seepage water to flow to the drains, is called a __________.
N a. cradle N b. draft N c. harping Y d. manger 1041: The document on a vessel, annually endorsed by an American Bureau of Shipping surveyor, is called the __________.
N a. Certificate of Inspection N b. Classification Certificate Y c. Load Line Certificate N d. Seaworthy Certificate 1080: The "inner bottom" is the __________.
Y a. tank top N b. compartment between the tank top and shell of the vessel N c. inner side of the vessel's shell N d. space between two transverse bottom frames 1087: The turning circle of a vessel is the path followed by the __________.
Y a. center of gravity N b. outermost part of the ship while making the circle N c. bow N d. tipping center 1150: In ship construction, frame spacing is __________.
N a. greater at the bow and stern Y b. reduced at the bow and stern N c. uniform over the length of the vessel N d. uniform over the length of the vessel, with the exception of the machinery spaces, where it is reduced due to increased stresses 1170: Transverse frames are more widely spaced on a ship that is designed with the __________.
N a. centerline system of framing N b. isometric system of framing Y c. longitudinal system of framing N d. transverse system of framing 1208: When making a wire fast to bitts it is recommended that you __________.
N a. use only figure eights N b. take 2 round turns around one bitt, then make figure eights Y c. take 3 round turns around both bitts, then make figure eights N d. alternate round turns and figure eights around both bitts 1306: You are making mooring lines fast to bitts, stern to, as in some Mediterranean ports. A swell is liable to make the vessel surge. How should you tie up?
Y a. Use manila or synthetic fiber hawsers only. N b. Use wires only from the stern and each quarter. N c. Use synthetic fiber and/or manila hawsers as required. N d. Use wires from each quarter and manila hawsers from the stern. 1549: On your vessel, a wire rope for the cargo gear shows signs of excessive wear and must be replaced. In ordering a new wire for this 10-ton boom, what safety factor should you use?
N a. Three Y b. Five N c. Six N d. Seven 1610: The joint formed when two steel shell plates are placed longitudinally side to side is called a __________.
N a. bevel N b. bond N c. strake Y d. seam 1622: What is NOT an indication that pack ice may be nearby?
Y a. The presence of icebergs N b. Ice blink N c. Absence of wave motion N d. Sighting a walrus in the Arctic 1638: On a twin-screw, twin-rudder vessel, the most effective way to turn in your own water, with no way on, is to put __________.
Y a. one engine ahead and one engine astern, with full rudder N b. one engine ahead and one engine astern, with rudders amidships N c. both engines ahead, with full rudder N d. both engines astern, with full rudder 1673: A sail hook is used for __________.
N a. hoisting a windsail N b. parceling Y c. sewing canvas N d. testing canvas 1695: What is the perimeter of a circle with a radius of 3.7 feet?
N a. 11.62 ft N b. 17.49 ft Y c. 23.25 ft N d. 25.72 ft 1728: You are trying to rescue survivors from a wrecked vessel on fire. You should approach __________.
N a. to leeward of the wrecked vessel N b. at a speed of at most one-half that of the wrecked vessel N c. at a speed of at least that of the wrecked vessel Y d. to windward of the wrecked vessel 1790: Which space(s) is(are) exempt when measuring gross tonnage?
N a. Auxiliary machinery spaces above the uppermost continuous deck N b. Steering gear room N c. Part of the wheelhouse used to control vessel Y d. All of the above 1795: Which knot represents a double sheet bend? (DO30DG )
N a. F N b. L Y c. R N d. T 1893: A block and tackle is "rove to advantage". This means that the __________.
N a. blocks have been overhauled N b. hauling parts of two tackles are attached Y c. hauling part leads through the movable block N d. hauling part leads through the standing block 1908: When towing astern, increased catenary will __________.
N a. increase control of the tow N b. prevent the towing vessel from going in irons N c. make the towing vessel less maneuverable Y d. reduce shock stress on the towing hawser 1935: The knot lettered H in illustration DO30DG is a __________. (DO30DG )
Y a. becket bend N b. bowline N c. plain whipping N d. crown knot 1969: If you shorten the scope of anchor cable, your anchor's holding power __________.
Y a. decreases N b. increases N c. remains the same N d. has no relation to the scope 1997: What is the name of tackle number 12? (DO29DG )
Y a. Threefold purchase N b. Davit tackle N c. Deck tackle N d. Gin tackle 2035: A seaman signed on articles on 16 January 1987 and signed off on 2 March 1987. How should you enter this under the Time of Service column in the articles?
N a. 1 Month 18 Days N b. 1 Month 16 Days N c. 2 Months Y d. 46 Days 2070: Which statement about the Williamson turn is FALSE?
Y a. It requires the highest degree of shiphandling skills to accomplish. N b. It is the slowest of the methods used in turning the vessel. N c. It is the best turn to use when the victim is not in sight due to reduced visibility. N d. It returns the vessel to the original track-line on a reciprocal course. 2139: You are proceeding to the area of reported distress. When you arrive at the reported position, the vessel in distress is not sighted. What type of search should be conducted?
N a. Sector search Y b. Expanding square N c. Track crawl N d. Parallel track search 2249: Which knot should be used to secure a line to a spar when the pull is parallel to the spar? (DO30DG )
N a. G N b. F Y c. P N d. Q 2536: Wages due a seaman may be attached by the court for the __________.
N a. payment of any fines imposed by the court N b. payment of back taxes to the IRS Y c. support of a spouse N d. All of the above 2556: The type of joint formed when a third small plate is riveted over two plates butted together is called a __________.
N a. butted joint N b. lap joint Y c. strap joint N d. stringer joint 2746: Which of the Great Lakes experiences the least amount of water level fluctuation between seasonal high and low water marks?
N a. Lake Huron N b. Lake Erie Y c. Lake Superior N d. Lake Michigan 2778: Assume that your vessel has just entered Lake Erie by way of the Welland Canal and is proceeding in a southwesterly direction. Which statement about the aids to navigation you can expect to encounter along the route is TRUE?
Y a. The characteristics of buoys and other aids are as if "returning from seaward" when proceeding in this direction. N b. All aids are maintained by the U.S. Coast Guard, 9th Coast Guard District, Cleveland, Ohio. N c. All red even-numbered buoys should be kept on your port side when proceeding in this direction. N d. Lighted aids, fog signals, and radio beacons maintained by Canada are not included in the Great Lakes Light List. 2785: You are proceeding under NCS (Naval Control of Shipping) and wish to send a message by rapid transmission which does not require a higher precedence. Which precedence would you assign this message?
N a. P (PRIORITY) Y b. R (ROUTINE) N c. O (IMMEDIATE) N d. Z (FLASH) 2839: Adequate horsepower is of great importance when a ship is navigating independently in ice. Adequate horsepower is generally considered to exist when the horsepower to length ratio is at least __________.
N a. 4 to 1 or better N b. 5 to 1 or better Y c. 6 to 1 or better N d. 8 to 1 or better 2921: The process of lowering a boom to a horizontal position and onto its deck support is called __________.
N a. spotting a boom N b. collaring a boom Y c. cradling a boom N d. toppling a boom 2958: The bow thruster generally is ineffective at __________.
Y a. over 3 knots headway N b. at any speed astern N c. at any speed ahead N d. over 1 knot sternway 3165: When steering a vessel, a good helmsman does NOT __________.
N a. consider steering a vessel a highly responsible job Y b. use as much rudder as possible to keep the vessel on course N c. use as little rudder as possible to keep the vessel on course N d. advise his relief of the course being steered 3240: You are the operator of a towing vessel which becomes involved in a collision. By law you must assist __________.
N a. if your vessel is at fault N b. if you can do so without excessive delay Y c. if you can do so without serious danger to your vessel N d. regardless of the circumstances 3411: When steering a vessel, a good helmsman does NOT __________.
N a. consider steering a vessel a highly responsible job N b. use as little rudder as possible to maintain course Y c. use as much rudder as possible to keep the vessel on course N d. advise his relief of the course being steered 3606: A spreader bar is used to __________.
N a. increase the lifting capacity N b. increase the lifting radius N c. protect the slings Y d. protect the upper part of a load 3654: Horizontal transverse motion of a vessel is known as __________.
N a. pitch N b. surge Y c. sway N d. heave 3719: Besides saving distance along the track line, another advantage of the Scharnow Turn over the Williamson Turn in a man overboard situation is because __________.
Y a. it is faster N b. it can be used in both the immediate action and the delayed action situations N c. in fog, if the turn is started as soon as the man goes over, the vessel will be at the point where he went over when the turn is completed N d. it returns the vessel to the original track line on a reciprocal course 4024: An icebreaker displaying a flag hoist which consists of the code letters "WO" (Whiskey Oscar) is indicating that __________.
Y a. icebreaker support is finished N b. icebreaker support is commencing N c. the icebreaker is icebound N d. the icebreaker is beset 4066: What is the MOST irritating to the skin?
N a. Carbon disulfide N b. Ethyl alcohol N c. Isoprene Y d. Oleum 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 4250: Which action(s) is/are included in crane operations?
N a. Pre-operation checks and start-up N b. Removing booms from stowage N c. Luff, slew, and hoist operations Y d. All of the above 4272: Which action should be taken immediately by the operator of a pedestal crane, if crane control is lost?
N a. Increase power to the crane to regain control. N b. Place control levers in opposite positions. Y c. Let go of both control levers and return to the neutral positions. N d. Check the circuit breakers. 4277: Which wire rope purchases may be used with a 30-ton pedestal crane?
N a. Hoist N b. Luff N c. Rider block Y d. All of the above