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.
70: You are on a tankship designed to carry molten sulfur. Which statement is TRUE?
N a. There must be two portable toxic vapor detectors on board. N b. The cargo tank ventilation system must maintain the H2S vapor concentration at 1.85% or more by volume. Y c. Cargo temperature may be taken by portable thermometers. N d. The pressure in the heating coils in the tanks must be less than that of the cargo exerted on them. 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. 203: How does the effect known as "bank suction" act on a single-screw vessel proceeding along a narrow channel?
N a. It pulls the bow toward the bank. N b. It pushes the entire vessel away from the bank. Y c. It pulls the stern toward the bank. N d. It heels the vessel toward the bank. 268: When a deck cargo is secured with chain or wire lashings and grab (pear) links, which statement is FALSE?
Y a. The amount of take-up is limited by the length of the turnbuckle. N b. At the grab (pear) link, the slack end of chain should be led back and secured to the chain above the link. N c. The lashings should be inspected each day and any slack taken up. N d. The turnbuckle should be secured with a stick or lock nuts. 297: Commercial ships or other persons or agencies requiring the assistance of Canadian Coast Guard icebreakers should first contact __________.
N a. the Canadian Coast Guard Y b. Ice Sarnia N c. the Ice Navigation Center N d. the icebreaker assigned to the area 337: On a coastwise tugboat of 199 GT, on a voyage over 600 miles, what percentage of the deck crew (excluding licensed officers) must hold a document of able seaman?
Y a. 65% N b. 50% N c. 25% N d. 0% 421: An International Tonnage Certificate will be issued to a vessel when it meets several requirements, one of which is that the vessel must __________.
N a. admeasure over 100 GT Y b. be 79 or more feet in length N c. engage in intercoastal or international trade N d. be issued a Certificate of Inspection 455: A vessel having continuous closely spaced transverse strength members is __________.
N a. longitudinally framed Y b. transversely framed N c. cellular framed N d. web framed 578: When loading a container vessel, the operation is basically that of vertical loading. The important factors to be considered when loading containers are port of discharge, __________.
N a. available dunnage, and chocking N b. crushability, and inherent vice N c. sweat, and weight Y d. weight, and refrigeration 583: Which factor(s) must you consider when making up a towing bridle?
N a. The horsepower of the tug N b. The desired amount of swing in the tow hook up N c. The weight of the tow Y d. All of the above 621: Which document shows details of a tank vessel, cargoes it may carry, manning and safety equipment required?
N a. Safety Construction Certificate N b. Cargo Gear Certificate Y c. Certificate of Inspection N d. Declaration of Inspection 661: The number of certificated lifeboatmen required for a vessel is found on the __________.
Y a. Certificate of Inspection N b. Muster List ("Station Bill") N c. lifeboats N d. Register or Enrollment 667: While towing in shallow water you should consider __________.
N a. using a short towing hawser Y b. using a floating hawser N c. the catenary and the effect it may have on the tow N d. All of the above 721: The mooring line labeled "F" is called a __________. (DO44DG )
N a. bow line N b. forward spring line Y c. breast line N d. None of the above 760: The connection to the towline must be secured with a ____________ .
N a. galvanized screw-pin shackle N b. hardened steel thimble Y c. shackle secured a nut and cotter pin N d. shackle fitted with a swivel piece 777: Before a Master relieves a Pilot of the conn, the __________.
N a. Master must always request the Pilot to take corrective action Y b. Master should foresee any danger to the vessel on the present course N c. Master should agree to sign a release of liability form N d. vessel must be in extremis 847: When towing astern what equipment should be stowed ready for use near the towline?
N a. First aid kit Y b. Axe or cutting torch N c. Fire extinguisher N d. Chafing gear 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. 981: When a vessel is entering or leaving a port, a record of engine speeds is kept in the __________.
Y a. bell book N b. deck rough log N c. Official Logbook N d. engine rough log 1046: In a following sea, a wave has overtaken your vessel and thrown the stern to starboard. To continue along your original course, you should __________.
Y a. use more right rudder N b. use more left rudder N c. increase speed N d. decrease speed 1139: The pivoting point of a vessel going ahead is __________.
N a. near the stern N b. at the hawsepipe Y c. about one-third of the vessel's length from the bow N d. about two-thirds of the vessel's length from the bow 1141: A vessel has arrived in a U.S. port from a foreign voyage. Preliminary entry has been made. Formal entry at the U.S. Custom House must be made within how many hours after arrival (Sundays and holidays excepted)?
N a. 12 N b. 24 Y c. 48 N d. 72 without exception 1183: Which towing equipment can be used to prevent the tripping of a tug?
N a. Bridles N b. Chafing boards Y c. Gob ropes N d. Drogues 1188: An implied warranty of seaworthiness on the part of the vessel's owner lies in the __________.
N a. Cargo Manifest N b. Certificate of Inspection N c. Classification Certificate Y d. contract of carriage, i.e. Bill of Lading 1266: You are docking a vessel in a slip which has its entrance athwart the tide. You land the ship across the end of the pier, stemming the tide, preparatory to breaking the ship around the corner. You have one tug to assist. Where would you generally tie up the tug?
N a. Have her on a hawser from the stern. N b. Tie her up on the inshore bow to hold the ship off the end. Y c. Tie her up on the offshore bow. N d. Tie her up on the inshore quarter to lift the stern. 1311: Before arriving at the first U.S. port from foreign, you must fill out a Crewman's Landing Permit for each __________.
N a. alien crewmember N b. crew member Y c. nonresident alien crewmember N d. unlicensed crew member 1326: After casting off moorings at a mooring buoy in calm weather, you should __________.
N a. go full ahead on the engine(s) Y b. back away a few lengths to clear the buoy and then go ahead on the engines N c. go half ahead on the engines and put the rudder hard right N d. go half ahead on the engines and pass upstream of the buoy 1548: What could be used as fairleads on a towed vessel?
N a. Chocks N b. Double bitts N c. Roller chocks Y d. All of the above 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 1800: The figure obtained by dividing the total volume of the ship in cubic feet (after omission of exempted spaces) by 100 is the __________.
N a. bale cubic Y b. gross tonnage N c. light displacement N d. net tonnage 1833: The standing part of a tackle is __________.
N a. all the fall except the hauling part N b. the hook that engages the weight to be moved N c. that part to which power is applied Y d. that part of the falls made fast to one of the blocks 1842: The knot shown lettered W is a __________. (DO30DG )
N a. clove hitch Y b. square knot N c. barrel hitch N d. stopper knot 1967: Using the graph shown, if the dry bulb temperature is 92°, and the wet bulb temperature is 85°, what is the relative humidity in a cargo hold? (D008DG )
Y a. 75% N b. 81% N c. 84% N d. 88% 1994: The space indicated by the letter J is known as the __________. (D033DG )
Y a. double bottom N b. flooding barrier N c. floor space N d. bilge tank 2085: What purpose does a bridge fitting serve when lashing containers?
N a. Ties a container stack to the deck N b. Ties a container to the container below it N c. Restrains racking loads Y d. Restrains the container against horizontal motion 2241: The letter M indicates a(n) __________. (D033DG )
Y a. web frame N b. intercostal N c. stringer N d. cant frame 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 2292: The biggest problem encountered when towing bridle legs are too short is __________.
N a. retrieval N b. adjusting tension Y c. excessive strain N d. hookup to main towline 2553: The key to rescuing a man overboard is __________.
N a. good equipment N b. a dedicated crew Y c. well-conducted drills N d. good communication 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 2599: When several salvors are on-scene at the same time to assist a vessel that has not been abandoned, which principal governs the decision as to which one's services will be accepted?
Y a. The Master of the ship needing assistance has the absolute right to decide. N b. The first salvor on-scene has the prior claim providing he has adequate facilities to assist the vessel needing assistance. N c. The salvors must agree to a division of any salvage among themselves with the major share allotted to those doing the most work. N d. The first salvor on-scene has the absolute right to provide assistance; however, he is liable if the ship is lost due to his lack of experience, equipment, etc. 2736: Distances on the Great Lakes System are generally expressed in __________.
N a. miles above the entrance to the St. Lawrence Seaway (MASLW) N b. miles above the head of the passes (AHP) N c. nautical miles Y d. statute miles 2809: The fitting at the end of a cargo line in a tank that allows suction to be taken close to the bottom of a tank is a __________.
N a. suction end N b. strainer Y c. bell-mouth N d. vacuum valve 2931: 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 Y b. 10 minutes if possible N c. 1 to 6 hours N d. 30 minutes to 1 hour 2932: Which type of rudder may lose its effectiveness at angles of 10 or more degrees?
N a. Contra-guide Y b. Balanced spade N c. Unbalanced N d. Flat plate 2959: A metal ring on the bottom of a block, to which the standing part of a tackle is spliced, is known as a(n) __________.
Y a. becket N b. loop N c. swivel N d. eye 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. 3022: You are in the process of adding a barge to your tow. A line run from your power capstan and around timber heads on your tow is made fast on the new barge so that it can be pulled into position. This line is called a __________.
N a. scissors wire Y b. capstan line N c. spring line N d. fore and aft line 3162: When maneuvering from pull towing to breasted (alongside) towing, a twin-screw vessel is more likely than a single-screw vessel of equal horsepower to __________.
N a. trip or capsize Y b. foul the towline N c. go into irons N d. part the towing strap 3308: What term indicates a curvature of the decks in a longitudinal direction?
N a. Deadrise N b. Camber Y c. Sheer N d. Flare 3360: On a light tow, what could you substitute for a fishplate?
Y a. heart-shaped shackle N b. pelican hook N c. swivel N d. ring 3381: A half-height container is used __________.
N a. to carry cargoes of low density N b. when stowage space is limited Y c. to carry cargoes such as steel products or drums N d. to double the stowage capacity of the vessel 3490: A device used to tighten up remaining slack in wire rope when you are making up to a tow in inland waters is a __________.
N a. tripping line N b. tripping bracket N c. norman pin Y d. steamboat ratchet 3491: You are the licensed Master of a towing vessel operating between New York and Tampa, Florida. If you carry four (4) deckhands onboard, how many must be able seamen?
N a. 4 Y b. 3 N c. 2 N d. 1 4134: What may NOT be used when securing heavy vehicles aboard Ro-Ro vessels?
N a. Chain lever N b. Turnbuckle Y c. Webbing N d. Chain 4162: According to the IMO Code, what are the minimum number of securing points that should be on each side of a "road vehicle", whose gross vehicle mass is between 3.5 tons and 20 tons, when carried on Ro-Ro vessels?
N a. One Y b. Two N c. Three N d. None of the above 4172: What should be done after putting down the ramp on a Ro-Ro vessel, prior to loading or discharging cargo?
N a. Turn on red cargo light. Y b. Turn on ventilation for cargo holds. N c. Call out the deck department for all hands. N d. None of the above 4211: Pedestal cranes have limit switches to restrict movement of which function(s)?
N a. Hoist upper & lower limits N b. Luff travel limits N c. Rider block hoist upper & lower limits Y d. All of the above 4246: What does "level-luffing" accomplish during crane operations?
N a. It prevents the load from swinging when the boom level is adjusted. N b. Less power is needed when topping the boom with a load on the hook. N c. It maintains the height of the load above the deck. Y d. All of the above 4383: What does item "A" refer to in this illustration of a 30-ton pedestal crane? (D045DG )
N a. Boom luffing falls Y b. Cargo hoist falls N c. Remote block tagline system N d. Slewing cable