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.
51: You are the licensed Master of a 100 GT towing vessel sailing coastwise. What percentage of the deck crew must be able to understand any order spoken by the officers?
N a. 50% N b. 65% Y c. 75% N d. 100% 150: Protective clothing must be worn while sampling hazardous cargo on a tankship, and as a minimum includes __________.
N a. a hood or hard hat Y b. a face mask or goggles N c. boots N d. chemical resistant gloves 208: Your vessel has been damaged and you must shore a bulkhead. You should cut the shore __________.
N a. approximately 1/2 inch longer than the measured length to allow for trimming Y b. approximately 1/2 inch shorter than the measured length to allow for wedges N c. approximately 1/2 inch shorter per foot of shoring to allow for wet expansion N d. to the same length as the measured length 265: Which statement is TRUE about hooks and shackles?
N a. Hooks are stronger than shackles of the same diameter. Y b. Shackles are stronger than hooks of the same diameter. N c. Hooks and shackles of the same diameter are of equal strength. N d. All the above may be true, depending on the hook's or shackle's overall length. 272: When measuring the oxygen content of the cargo tanks prior to loading cargoes requiring vapor recovery, check it __________.
N a. one meter from the tank bottom and one meter below the tank top Y b. one half the ullage of the tank and one meter below the tank top N c. one half the ullage of the tank and one meter above the tank bottom N d. at three meter intervals from the tank top to the bottom 324: A "chock" is a __________.
N a. deck fitting used to secure mooring lines Y b. casting fitted at the side of a weather deck, used as a fairlead N c. sharp block of wood used to support hygroscopic cargo N d. smoke pipe for the galley stove 457: You are the operator of an uninspected diesel towing vessel of 190 GT operating on a regular run from New York to the Gulf of Mexico. Which statement is TRUE?
N a. Deck watches may be 6 and 6. N b. Able seamen are not required in the deck crew. Y c. All crew members must have Merchant Mariner's Documents. N d. A licensed Chief Engineer is required. 533: A towing hook may be released from the __________.
N a. tug's engineroom or the bow Y b. pilot house or aft steering station N c. forecastle N d. towing bitts by reaching over and releasing a lever 559: A vessel loads edible oil in a deep tank through a manhole at the mid-length of the tank. In order to fill the tank to maximum capacity, what trim should the vessel have?
N a. Down by the bow N b. Down by the stern N c. Down by either the bow or stern Y d. In level trim 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 728: How many board feet of dunnage are in a draft 4 feet wide, 1-1/2 feet high and 13 feet long?
N a. 84 N b. 756 Y c. 936 N d. 1021 741: A vessel has sustained damage in a collision with another vessel. It is necessary to have a Seaworthy Certificate before the vessel sails. Who will issue this certificate?
N a. American Consul Y b. Classification Society N c. Captain of the Port N d. Officer in Charge, Marine Inspection 749: Butadiene, inhibited, is labeled as a __________.
N a. combustible liquid Y b. flammable gas N c. flammable liquid N d. flammable solid 755: When underway with a tow, you are required to notify the Coast Guard in which casualty situation?
Y a. Accidental stranding or grounding N b. An injury requiring first aid treatment N c. Loss of bridge-to-bridge radio capability N d. Damage to property amounting to $12,500 777: 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 782: The owner or Master of a towing vessel shall ensure that each person that directs and controls the movement of the vessel can accurately fix the vessel's position using all of the following EXCEPT ___________ .
N a. installed navigational equipment Y b. buoys alone N c. all available aids to navigation N d. depths soundings and hydrographic contour lines 785: With rudders amidships and negligible wind, a twin-screw vessel moving ahead on the port screw and backing on the starboard screw will __________.
N a. move in a straight line Y b. pivot to starboard N c. pivot to port N d. walk sideways to starboard 826: In order to reduce your wake in a narrow channel you should __________.
N a. apply enough rudder to counter the effect of the current N b. change your course to a zigzag course Y c. reduce your speed N d. shift the weight to the stern 887: The condition of a towline must be monitored by ______________ .
N a. keeping record of the towline's initial minimum breaking strength N b. keeping record of each retest of the towline's minimum breaking strength N c. conducting routine visual inspections of the towline Y d. All of the above 908: You must load as much of a large shipment of case goods as possible into a hold which has 24,400 cubic feet of space. Each case measures 2 feet by 2 feet by 4 feet and weighs 448 pounds. If you allow for broken stowage of 15%, how many long tons can be loaded?
N a. 54 N b. 207 Y c. 259 N d. 351 932: When bunkering at a dock which of the following signals must be displayed?
N a. A yellow flag by day, red light by night Y b. A red flag by day, red light by night N c. A green flag by day, green light by night N d. A red flag by day, a blue light by night 959: A relief valve for a cargo pump is generally installed __________.
N a. after the discharge valve Y b. between the pump and discharge valve N c. after the suction valve N d. between the pump and suction valve 1007: When using the term "limber system" one is referring to a __________.
N a. cleaning system Y b. drainage system N c. strengthening system N d. weight reduction system 1059: You are cleaning the tanks after carrying a cargo of crude oil. Which statement is TRUE?
N a. Washing water should be recirculated if possible because it has the same electric potential as the cargo tank being cleaned. N b. The hoses to portable cleaning machines should be disconnected before the machines are removed from the tank. N c. The principal hazard with steaming cargo tanks is raising the ambient temperature above the flame point of the cargo residue. Y d. Steam cleaning and water washing are both capable of generating electrostatic charges within a tank. 1130: The fittings used to secure a watertight door are known as __________.
N a. clamps N b. clasps Y c. dogs N d. latches 1145: You are on watch at night in clear visibility and the vessel has just been anchored. The first thing that you should do after the anchor has been let go is to __________.
N a. stop the engines Y b. take bearings to obtain ship's position N c. turn off the running lights and turn on the anchor lights N d. lower the accommodation ladder and illuminate it 1155: In the context of shiphandling, what would be the definition of shallow water?
Y a. Water depth of less than twice a vessel's draft N b. Water depth of less than 1½ times a vessel's draft N c. Under keel clearance of twice a vessel's draft N d. Under keel clearance of less than 10 feet 1173: You are making a sharp turn in a channel and using a buoy four points on the bow to gauge your rate of turn. If you observe the buoy moving forward relative to you, what should you do?
N a. Increase the rate of turn Y b. Decrease the rate of turn N c. Maintain a constant rate of turn N d. Increase speed 1272: You are on a tankship carrying benzene in bulk. Which statement is TRUE?
N a. No other cargoes may be carried due to the possibility of contamination by a carcinogen. N b. The crew quarters must have positive-pressure ventilation to prevent the fumes from entering the living spaces. N c. Benzene is not a cancer-causing agent. Y d. Personnel working in regulated areas must use respirators. 1304: A nylon line is rated at 12,000 lbs. breaking strain. Using a safety factor of 5, what is the safe working load (SWL)?
N a. 2,000 lbs. Y b. 2,400 lbs. N c. 12,000 lbs. N d. 60,000 lbs. 1330: Beams are cambered to __________.
N a. increase their strength Y b. provide drainage from the decks N c. relieve deck stress N d. All of the above 1390: The body plan of a vessel is a(n) __________.
Y a. endwise view of the ship's molded form N b. longitudinal side elevation view N c. plan made looking down on the ship, showing it's hull cut horizontally by the first set of planes N d. vertical view made looking up in the ship, with the keel at the center 1518: Your vessel is being towed and back-up wires have been installed. Back-up wires carry the towing load in the event that the __________.
N a. bridle legs part Y b. towing bitt or pad eye fails N c. bight ring fails N d. main towing hawser parts 1523: When making a short splice in wire rope __________.
Y a. all tucks go against the lay N b. all tucks go with the lay N c. the first three wires are tucked against the lay and the last three go with the lay N d. the first three wires are tucked with the lay and the last three go against the lay 1558: When making up a tow connection, you should use __________.
N a. safety hooks N b. plain eye hooks N c. round pin shackles Y d. screw pin shackles 1578: A stream of water immediately surrounding a moving vessel's hull, flowing in the same direction as the vessel is known as __________.
N a. directional current N b. forward current N c. propeller current Y d. wake current 1637: Which statement about a vessel's stability while dry-docking is TRUE?
Y a. Every ton of weight bearing on the blocks acts as if a ton of weight was removed at keel level. N b. When the ship touches the blocks, the beam for stability purposes increases to the beam of the dry-dock. N c. The stability of the vessel increases as a dock is pumped out due to the support of the keel blocks. N d. As the dock begins to support the weight of the vessel, stability calculations are based on the ship and dock as a single unit. 1717: With a large tow astern, there is immediate danger to the tug in the event of the __________.
Y a. tug losing power N b. tow line parting N c. bridle twisting N d. tow broaching 1746: Which would you NOT use to report the amount of anchor chain out? "Three shots __________."
N a. at the water's edge N b. on deck Y c. on the bottom N d. well in the water 1749: A sling is rigged on a piece of pipe weighing 1000 lbs. The angle between the sling legs is 140° and the legs are of equal length. What stress is exerted on each sling leg when the pipe is lifted?
N a. 1318 lbs. N b. 1366 lbs. N c. 1414 lbs. Y d. 1462 lbs. 1808: Which organization would conduct a survey of the insulation in a reefer compartment prior to loading cargo?
N a. U.S. Customs Service N b. OSHA Y c. American Bureau of Shipping N d. National Cargo Bureau 2058: What is NOT suitable for use in making up the towing rig for a heavy, long ocean tow?
N a. Chain Y b. Ring N c. Solid thimble N d. A fishplate 2075: The knot lettered E is a __________. (DO30DG )
N a. stopper hitch N b. blackwall hitch Y c. timber and half hitch N d. bowline on a bight 2102: A seaman deserts the vessel in a foreign port. What should the Master do with any of the deserter's personal effects remaining on board?
N a. Sell them at auction and deposit the money in the ship's morale or welfare fund. N b. Donate them to a local charity upon return to the United States. Y c. Transfer them to the appropriate district court of the U.S. at the end of the voyage. N d. Inventory them, make an appropriate entry in the Official Logbook and dispose of them at sea. 2393: Determine the weight of a rectangular piece of 25.5 lbs. steel measuring 4.5 feet by 6.7 feet.
N a. 285.6 lbs. N b. 329.7 lbs. N c. 591.2 lbs. Y d. 768.8 lbs. 2597: On a small boat, if someone fell overboard and you did not know over which side the person fell, you should __________.
N a. immediately reverse the engines Y b. stop the propellers from turning and throw a ring buoy over the side N c. increase speed to full to get the vessel away from the person N d. first put the rudder hard over in either direction 2672: The term "scantlings" refers to the __________.
N a. draft of a vessel Y b. measurements of structural members N c. requirements for ship's gear N d. placement of a vessel's load line 2774: There are basically three categories of water level fluctuations on the Great Lakes. What is NOT included as one of these?
N a. Long range fluctuations Y b. Controlled outflow fluctuations N c. Seasonal fluctuations N d. Short period fluctuations 2804: Which publication is NOT carried on board U.S. merchant vessels operating under Naval Control of Shipping?
N a. Allied Control of Shipping Manual - Guide to Masters N b. Communications Supplement Y c. Tactical Control and Routing of Merchant Vessels N d. All of the above are carried on board 2805: "Hard right rudder" means __________.
N a. jam the rudder against the stops Y b. put the rudder over to the right all the way N c. meet a swing to the right, then return to amidships N d. put the rudder over quickly to 15 degrees right rudder 2836: Which of the Great Lakes is generally the last to reach its seasonal low and seasonal high water marks?
Y a. Lake Superior N b. Lake Michigan N c. Lake Huron N d. Lake Ontario 2898: What is the period of validity of the SOLAS required Cargo Ship Safety Construction Certificate?
N a. 12 months N b. 24 months N c. 48 months Y d. 60 months 3074: In securing a towing cable, consideration must be given to letting go in an emergency. The possible whip of towlines when released can be overcome by __________.
N a. increasing the shaft RPM prior to release N b. using a pelican hook for quick release Y c. using preventers N d. using a short chain for the lead through the stern chock 3091: Towlines should be inspected for chafing where the towline __________.
N a. passes over the stern of the towing vessel N b. passes through chocks N c. is attached to the disabled vessel Y d. All of the above 3323: You are proceeding under NCS (Naval Control of Shipping) when it becomes necessary to send a distress message. Which precedence would you assign this message?
N a. P (PRIORITY) Y b. O (IMMEDIATE) N c. R (ROUTINE) N d. Z (FLASH) 3484: You are on watch and see a man fall overboard. Which man- overboard turn should NOT be used in this situation?
Y a. Scharnow N b. Single turn N c. Racetrack N d. Williamson 3564: The angle at which the fluke penetrates the soil is called the __________.
Y a. fluke angle N b. tripping angle N c. penetration angle N d. holding angle 3565: The safety stopper that prevents the anchor cable from running free if the cable jumps the wildcat is the __________.
Y a. riding pawl N b. devil's claw N c. buckler plate N d. spill pipe 4016: Which statement is TRUE concerning weather conditions on the Great Lakes?
N a. When a vessel is south of an eastward-moving storm center, the approach of the low is evidenced by winds from the north to northeast. Y b. When a vessel is north of an eastward-moving storm center, changes in the weather are less distinctive than when sailing south of the center. N c. The most destructive storms usually come from the northwest or north. N d. Thunderstorms are most likely to develop from November through April. 4183: Which of the following lashing gear used aboard Ro-Ro vessels should be maintained when not in use?
N a. Chain N b. Wire rope N c. Webbing Y d. All of the above