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.
39: Combustible liquids are divided into how many grades?
N a. One Y b. Two N c. Three N d. Four 198: Battens are fitted in cargo holds across the frames of the vessel from the turn of the bilge upward. The purpose of these cargo battens is __________.
N a. for securing a snatch block when snaking cargo into the wings of the hold Y b. to prevent cargo from coming in contact with the vessel's frames or shell plating N c. to provide fittings to which cargo lashings may be secured N d. to support the dunnage floors which are laid down between tiers of cargo 344: The purpose of a bilge well is to __________.
N a. afford access to the shell through the double bottoms Y b. collect water to be pumped out N c. provide access for the pneumercator N d. provide a base line for sounding measurements 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 462: The safe working load (SWL) of wire rope with a safety factor of 6 is what percent of its strength?
N a. 10% Y b. 17% N c. 50% N d. 80% 522: You are onboard a 120 GT uninspected sea going tug which carries one Master and one Mate of Towing Vessels and four (4) seamen when underway. How many of the four seamen must have a rating as able seamen if the voyage is under 600 miles?
N a. 4 N b. 3 Y c. 2 N d. 1 560: 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. 612: When backing down with sternway, the pivot point of a vessel is __________.
N a. at the bow N b. about one-third of the vessel's length from the bow N c. aft of the propellers Y d. about one-quarter of the vessel's length from the stern 657: Which space(s) is(are) deducted from gross tonnage to derive net tonnage?
N a. Companions and booby hatches N b. Open structures Y c. Spaces for the exclusive use of the officers or crew N d. Water ballast spaces 678: Prior to being able to sail, each vessel that carries grain in bulk must have a certificate of loading issued by the __________.
N a. American Bureau of Shipping N b. Lloyds of London Y c. National Cargo Bureau N d. U.S. Salvage 704: Laying out a line in successive circles flat on deck with the bitter end in the center is known as __________.
N a. coiling N b. faking Y c. flemishing N d. lining 709: The designations A,B,C,D, and E grades of cargo refer to the __________.
N a. degrees of quality of petroleum products Y b. flash point range and Reid vapor pressure index of petroleum products N c. grades of crude oil N d. pour point, color, and viscosity index of petroleum products 751: A document which has a list of names, birthplaces, and residences of persons employed on a merchant vessel bound from a U.S. port on a foreign voyage and is required at every port is called the __________.
Y a. Certified Crew List N b. Crew Manifest N c. Shipping Articles N d. Muster List ("Station Bill") 783: The owner or Master of a towing vessel shall ensure that each person that directs and controls the movement of the vessel can accomplish all of the following EXCEPT ___________ .
N a. evaluate the danger of each closing visual or radar contact N b. adjust speed with due regard for the weather and visibility Y c. reduce speed only where local speed limits are posted N d. enter all required test and inspection results in the vessel's log or other record carried on board 789: Which statement about a centrifugal cargo pump is TRUE?
N a. It is a positive displacement pump. Y b. It must have a positive suction. N c. Increasing rotation speed will decrease discharge pressure. N d. All of the above 856: A wedge of water building up between the bow and nearer bank which forces the bow out and away describes __________.
Y a. bank cushion N b. bank suction N c. combined effect N d. bend effect 874: Which type of line would have the LEAST resistance to mildew and rot?
Y a. Manila N b. Nylon N c. Dacron N d. Polypropylene 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. 1005: Which device is designed to automatically hold the load if power should fail to an electric winch?
N a. Pneumatic brake Y b. Electromagnetic brake N c. Hand brake N d. Motor controller 1010: When the longitudinal strength members of a vessel are continuous and closely spaced, the vessel is __________.
N a. transversely framed Y b. longitudinally framed N c. intermittently framed N d. web framed 1189: When bunkering is complete, the hoses should be __________.
N a. cleaned internally with a degreaser N b. washed out with hot soapy water Y c. drained, blanked off, and stored securely N d. stowed vertically and allowed to drain 1214: Which statement is TRUE about nylon line?
N a. Manila line will usually last longer than nylon line. N b. Nylon line is excellent for use in alongside towing. N c. A normal safe working load will stretch nylon line 50%. Y d. Nylon stoppers should be used with nylon line. 1260: The function of the bilge keel is to __________.
Y a. reduce the rolling of the vessel N b. serve as the vessel's main strength member N c. add strength to the bilge N d. protect the vessel's hull when alongside a dock 1346: The best method of determining if a vessel is dragging anchor is to note __________.
N a. the amount of line paid out N b. how much the vessel sheers while at anchor N c. any change in the tautness of the anchor chain Y d. changes in bearings of fixed objects onshore 1460: Weight concentration in which area will cause a vessel's bottom to be subjected to tension stresses?
N a. Aft Y b. Amidships N c. At both ends N d. Forward 1463: On a small boat, which knot is best suited for attaching a line to the ring of an anchor?
N a. Clove hitch N b. Figure-eight knot Y c. Fisherman's bend N d. Overhand knot 1496: The purpose of a devil's claw is to __________.
Y a. act as a chain stopper N b. prevent the windlass from engaging N c. prevent the chain from fouling on deck N d. control the wildcat 1506: The sprocket wheel in a windlass, used for heaving in the anchor, is called a __________.
N a. capstan N b. dog wheel N c. fairlead Y d. wildcat 1619: A periodic thorough examination of the cargo gear proves satisfactory. What percentage of the total gear must be dismantled to determine actual internal condition?
Y a. None N b. 10% N c. 25% N d. 100% 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 1852: What is normally used to pass a mooring line to a dock?
N a. Distance line N b. Gantline Y c. Heaving line N d. Tag line 1864: Progressive flooding may be indicated by __________.
N a. ballast control alarms N b. excessive draft N c. excessive list or trim Y d. a continual worsening of list or trim 1919: The disadvantage of using three strand nylon line for towing is its __________.
N a. inherent weakness N b. tendency to rot if left damp Y c. danger to crew if it parts N d. strength and shock absorbing abilities 1941: The helm command "Left twenty" means __________.
N a. change course twenty degrees to the left Y b. put the rudder left twenty degrees N c. put the rudder hard left for the first twenty degrees of swing N d. put the rudder left twenty degrees and then ease back as the vessel starts swinging 1973: Which statement is TRUE about placing the eyes of two mooring lines on the same bollard?
N a. Put one line at the low point and one at the high point of the bollard so they don't touch. Y b. Take the eye of the second line up through the eye of the first line before putting the second line on the bollard. N c. Never put two mooring lines on the same bollard. N d. The mooring line forward should be put on the bollard first. 1975: The knot lettered F in illustration DO30DG is a __________. (DO30DG )
N a. becket bend N b. square knot N c. fisherman's bend Y d. round turn and two half hitches 2050: In illustration D044DG, the mooring line labeled "H" is called a(n) __________. (DO44DG )
N a. forward breast line N b. offshore spring line N c. onshore bow line Y d. offshore bow line 2059: You are handling a mooring line and are instructed to "Check the line". What should you do?
N a. Ensure the bight is not fouled by taking up slack. N b. Pay out the line smartly and keep it free for running. N c. Secure the line by adding more turns. Y d. Surge the line so it maintains a strain without parting. 2162: A crew has signed on for a 3-month voyage. Fourteen days into the voyage a seaman is improperly discharged at the first port of call. How much pay is he entitled to receive?
N a. 14 days N b. 1 month's Y c. 14 days and one month's extra N d. double wages (28 days) 2218: If reefer spaces are not properly cleaned prior to loading cargo, it will most likely cause __________.
Y a. mold to develop on commodities N b. malfunction of the refrigeration equipment N c. contamination of the insulation in the space N d. All of the above 2229: You are using tackle number 5 to lift a weight. The hauling part of this tackle is bent to the weight hook of tackle number 9. What is the mechanical advantage of this rig? (DO29DG )
Y a. 20 N b. 9 N c. 5 N d. 4 2233: The knot lettered N as shown is a __________. (DO30DG )
N a. timber hitch N b. rolling bowline Y c. stopper N d. heaving line hitch 2261: The machinery associated with heaving in and running out anchor chain is the __________.
N a. winch Y b. windlass N c. draw works N d. dynamic pay out system 2480: A Danforth lightweight anchor does NOT hold well in which type of bottom?
N a. Mud Y b. Grass N c. Sand N d. Clay 2598: Where, due to the arrangement of the vessel, lifejackets may become inaccessible, additional lifejackets shall be carried __________.
N a. for the people on bridge watch N b. for the forward lifeboats Y c. as determined by the OCMI N d. for 50% of the crew of the vessel, not including those assigned to engineering duties 2604: The joint formed when two steel plates are placed end-to-end is called a __________.
N a. bevel N b. seam Y c. butt N d. bond 2607: Which statement is TRUE concerning lifeboat installations on Great Lakes vessels?
N a. All davit installations shall have 3 lifelines fitted to a davit span. N b. All vessels over 3,000 gross tons must be fitted with gravity davits. Y c. All lifelines shall be able to reach the water at the vessel's lightest draft with a 20° list. N d. All of the above 2612: When using the anchor to steady the bow while approaching a dock you must be aware of the fact that __________.
N a. the vessel will tend to take a large sheer towards the side where the anchor is down N b. steering control is ineffective in trying to turn to the side opposite to that of the anchor being used N c. the anchor cable must never lead under the hull Y d. using an offshore anchor decreases the chances of the anchor holding 2754: Which statement is TRUE concerning vessels over 1600 gross tons certificated for service solely on the Great Lakes?
N a. They must have magnetic compasses. N b. They must have gyro compasses. Y c. They must carry a deep-sea hand lead. N d. All of the above statements are TRUE. 3102: When hip towing, a line led from the stern of the towboat forward to the barge provides the towing pull when __________.
N a. going ahead N b. dead in the water N c. in a following current Y d. backing 3230: After a collision or accident involving an uninspected vessel, regulations require that the operator assist persons affected, but only if the operator can do so without __________.
N a. further damaging the other vessel N b. undue delay Y c. serious danger to his or her own vessel N d. creating a panic on either vessel 3252: The signal man assisting the crane operator has his arm extended and is pointing his finger in the direction to move the boom. This is the signal to __________.
N a. extend N b. lower N c. hoist Y d. swing 3448: When inspecting ground tackle, fractures are most frequently found in the __________.
N a. anchor shank Y b. end links N c. swivel N d. fluke 3560: What should look-outs report?
N a. Discolored water N b. Shoals N c. Floating objects Y d. All of the above 3562: The signal man assisting a crane operator has his arm extended with his fingers closed and thumb pointing upward. This is the signal to __________.
Y a. raise the boom N b. raise the hook N c. raise the boom and hook N d. check the boom stop 3602: What is the penalty for desertion?
N a. Fine of not more than 2000 dollars and forfeiture of wages N b. Imprisonment for not more than 2 years and/or a fine of not more than 2000 dollars N c. Revocation of Merchant Mariner's Document (and license if applicable) and forfeiture of wages due Y d. Forfeiture of money and property left on the vessel, and wages due 4010: You have completed a crude oil wash. What action should be taken with the oil in the lines running to the washing machines?
Y a. Open a COW nozzle forward and one aft and drain the line into the after tank by gravity N b. Blow the line out using compressed air N c. Pull a suction using the supply line pump N d. Close off all valves in the system and leave the oil in the line primed for the next crude oil wash 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 4060: You are arriving in port and are assigned to anchor in anchorage circle B-4. It has a diameter of 550 yards and your vessel's LOA is 449 feet. If you anchor in 9 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 Y c. 4 shots N d. 3 shots 4148: Which tensioning device is used with chain to secure heavy vehicles aboard Ro-Ro vessels?
N a. Ratchet tensioner N b. Buckle tensioner N c. Adjust-a-matic tensioner Y d. Turnbuckle