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.
80: You are on a cargo vessel carrying portable tanks of dangerous cargoes in bulk. Which statement is TRUE?
N a. If the tanks are pumped out while remaining on board, each hose connection must have a minimum of three bolts. N b. If the tanks are off loaded, no more than two tanks may be lifted together in a hoist. N c. When transferring sulfuric acid, you must display a red flag by day whether at anchor or moored. Y d. All electrical equipment within 10 feet horizontally must be explosion proof or intrinsically safe. 99: What is meant by "thieving" a petroleum cargo?
N a. Siphoning off a few barrels of petroleum for shipboard use Y b. Determining the amount of water (if any) in each cargo tank N c. Adjusting the cargo figures to coincide with the draft N d. Reducing the gross cargo calculations to net amounts 110: What is NOT required as special safety equipment on a tankship carrying hazardous cargoes in bulk?
N a. Shower and eyewash fountain N b. Equipment to lift an injured person from a pumproom Y c. Two portable vapor detectors suitable for the cargoes carried N d. A safety locker adjacent to the emergency shutdown station 232: The angle at which the fluke penetrates the soil is called the __________.
N a. tripping angle Y b. fluke angle N c. penetration angle N d. holding angle 294: Displacement refers to the __________.
N a. cubic capacity of a vessel N b. deadweight carrying capacity of a vessel N c. gross tonnage of a vessel Y d. number of long tons of water displaced by a vessel afloat 334: The space above the engine room is called the __________.
Y a. fidley N b. gold locker N c. middle hatch N d. noble 360: The label required on containers carrying barium oxide in an international shipment must read __________.
Y a. "Poison" N b. "Spontaneously Combustible" N c. "Radioactive" N d. "Infectious Substance" 437: Prior to getting underway in fresh or brackish water, the Master must __________.
Y a. log the density of the water N b. secure all overboard discharges N c. take on fresh water ballast N d. clean the sides with fresh water 445: Where are the towing bitts best placed for towing purposes?
N a. Near the centerline and over the rudders N b. On each side of the vessel near the stern Y c. Forward of the rudder post and close to the tug's center of pivot N d. As far aft as possible 456: You are conning a twin-screw vessel going ahead with rudders amidships. If the port screw stops turning the bow will __________.
Y a. go to port N b. go to starboard N c. not veer to either side N d. go first to port and then to starboard 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. 1 600: You are on a containership. Which statement about the stowage of hazardous materials in containers is TRUE?
N a. The containers provide automatic segregation of hazardous materials except for class A explosives. N b. All packages within a container must be marked "This End Up" to indicate the correct stowage. Y c. A refrigerated container with a fuel tank containing a flammable liquid must be stowed on deck. N d. Packages of liquids within a container should be stowed on top of packages of solids to prevent crushing. 674: Stuffer-braid rope has __________.
Y a. a yarn core N b. no core N c. three strands N d. 12 threads 735: A heavy steel curved arch constructed athwartships and above the after deck on a towing vessel is sometimes called a __________.
N a. main brace Y b. tow span N c. jockey bar N d. None 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 860: Which category of able seaman is not authorized to be counted as an able seaman on a seagoing tug of over 100 gross tons?
N a. Unlimited N b. Limited N c. Special Y d. Special (OSV) 889: The owner or Master of a towing vessel must evaluate whether the entire towline, or a part of it, is no longer serviceable. The towline should be removed from service in all cases EXCEPT ___________ .
N a. when recommended by the manufacturer or an authorized classification society N b. in accordance with a replacement schedule Y c. when the vessel is underway N d. depending on the mileage or time that the towline has been in service 912: You are aboard vessel "A" in a narrow channel and the pilot is approaching vessel "B" as shown. The reason he has not previously changed course to the starboard side of the channel is __________. (DIAGRAM 37 )
N a. to avoid vessel squat in the shallower water near the bank Y b. to avoid the effects of bank cushion and bank suction N c. because there is less chance of striking submerged objects in mid-channel N d. because the current has less eddies in mid-channel 1049: You have water washed your cargo tanks using the fixed machines. What should you do before using portable machines to clean areas screened from the wash of the fixed machine by structural members?
Y a. Ventilate the tank to eliminate any electrostatically charged mist. N b. Attach the water supply hose to the portable machine after the cleaning head is positioned inside the tank. N c. Insure that the tanks are not stripped until the final wash is started. N d. Ground the fixed machines to eliminate any electrostatic buildup on the cleaning head. 1103: What should you inspect to be sure that it is safe to go aloft in a bosun's chair?
N a. The gantline N b. The tail block N c. The chair and bridle Y d. All of the above 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 1185: As shown, the mooring line labeled "C" is called a __________. (DO44DG )
N a. stern line N b. spring line Y c. breast line N d. shore line 1224: Which is NOT a recommended practice when handling nylon line?
N a. Nylon lines which become slippery because of oil or grease should be scrubbed down. Y b. Manila line stoppers should be used for holding nylon hawsers. N c. When easing out nylon line, keep an extra turn on the bitt to prevent slipping. N d. Iced-over nylon lines should be thawed and drained before stowing. 1243: You are on watch at sea and find it prudent to call the Master to the bridge due to traffic congestion. The moment that the Master officially relieves you of the conn is whenever __________.
N a. a watchstander announces "Captain's on the bridge" N b. you call the Captain to the bridge in a traffic situation Y c. the Master specifically informs you that he has the conn N d. the Captain states the course being steered 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. 1298: A Master should file a marine note of protest if __________.
N a. cargo was received at ship side which was damaged in land transit N b. longshore labor went on strike in the port causing undue vessel delay N c. portions of his vessel's cargo were illegally impounded in a foreign port Y d. the vessel encountered heavy weather which might have caused cargo damage 1336: When picking up your mooring at the buoy, the correct method is to __________.
N a. approach the buoy with the wind and current astern Y b. approach the buoy with the wind and current ahead N c. approach the buoy with wind and sea abeam N d. stop upwind and up current and drift down on the buoy 1389: A band or collar on the top end of a boom to which the topping lift, midships guy, and outboard guys are secured, is called the __________.
N a. collar band N b. guy band N c. pad eye collar Y d. spider band 1539: Electric cargo winches have an overload safety device which normally cuts the current to the winch motor __________.
Y a. after torque causes line pull to exceed the rated capacity of the winch N b. before the line pull reaches the rated capacity of the winch N c. when the line pull reaches the breaking strength of the fall N d. before the safe working load of the fall is reached 1615: A towing vessel should be on the crest of a wave at the same time as its tow and in the trough at the same time. The term used to describe this is __________.
N a. tow strain N b. catenary length Y c. being in step N d. Williamson's Tow 1713: The cheek length of a block in inches should be about __________.
Y a. three times the circumference of a manila line N b. five times the diameter of a manila line N c. twice the diameter of its sheaves for manila line N d. twenty times the diameter of a manila line 1716: Which is the correct procedure for anchoring a small to medium size vessel in deep water?
N a. Let the anchor fall free from the hawsepipe, but apply the brake at intervals to check the rate of fall. N b. Back the anchor slowly out of the hawsepipe a few feet, and then let it fall in the normal fashion. N c. Let the anchor fall off the brake right from the hawsepipe, but keep a slight strain on the brake. Y d. Under power, back the anchor out until it is near, but clear, of the bottom before letting it fall. 1826: The knot lettered X in illustration DO30DG is a __________. (DO30DG )
N a. timber hitch N b. becket bend Y c. clove hitch N d. blackwall hitch 1846: In a national emergency, when communicating via the Navy, messages are sent by precedence. A message designated IMMEDIATE will be delivered within __________.
N a. 3 hours to start of business the following day N b. 1 to 6 hours Y c. 30 minutes to 1 hour N d. 10 minutes if possible 1917: How many tons of salt water can be loaded into a flat-ended cylindrical tank with a diameter of 5 feet and a length of 14 feet?
N a. 31.42 N b. 15.71 Y c. 7.85 N d. 6.25 1929: How many tons of salt water can be loaded into a flat-ended cylindrical tank with a diameter of 5 feet and a length of 10 feet?
N a. 22.44 T N b. 11.22 T N c. 7.48 T Y d. 5.61 T 2098: Snow has obliterated surface features and the sky is covered with uniform, altostratus clouds. There are no shadows and the horizon has disappeared. What is this condition called?
N a. Ice blink Y b. Whiteout N c. Water sky N d. Aurora reflection 2198: You are conducting trials to determine the maneuvering characteristics of your vessel. While making a turn, you take ranges and bearings of an isolated light with the results as shown. Based on this information, what is the transfer for a turn of 90°? (D034DG )
N a. 355 yards Y b. 380 yards N c. 410 yards N d. 455 yards 2274: In a national emergency, when communicating via the Navy, messages are sent by precedence. A message designated PRIORITY will be delivered within __________.
N a. 3 hours to start of business the following day N b. 30 minutes to 1 hour Y c. 1 to 6 hours N d. 10 minutes if possible 2532: For a given weight of cargo, the stress on the heel block of a cargo boom __________.
N a. increases as the cargo closes the head while hoisting N b. increases if the cargo runner is doubled up Y c. decreases as the boom is topped to a greater angle N d. is determined by the thrust stresses on the boom 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 2601: To determine the number of inflatable liferafts required on a vessel, you should check the __________.
N a. Load Line Certificate N b. SOLAS Certificate N c. Stability Letter Y d. Certificate of Inspection 2706: Which type of davit is not considered to be a mechanical davit?
N a. Sheath-screw boom Y b. Radial N c. Crescent N d. Quadrantal 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 2776: How are aids to navigation on the Great Lakes arranged geographically?
N a. In a westerly and northerly direction, except on Lake St. Clair N b. In an easterly and southerly direction, except on Lake Erie Y c. In a westerly and northerly direction, except on Lake Michigan N d. In an easterly and southerly direction, except on the New York State Barge Canal 2817: The command "meet her" means the helmsman should __________.
N a. decrease the rudder angle N b. steer more carefully Y c. use rudder to slow the vessel's swing N d. note the course and steady on that heading 2892: What is LEAST likely to be used to strip a cargo tank?
Y a. Centrifugal pump N b. Eductor N c. Rotary pump N d. Reciprocating pump 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 2922: A long pole with a hook at one end, used to reach for lines, is known as a __________.
Y a. pike pole N b. jack staff N c. line rod N d. hooker 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 3210: A licensed Master of Towing Vessels may NOT serve as the person in charge of which towing vessel?
N a. 99 GRT towing vessel operating on Chesapeake Bay N b. 199 GRT towing vessel operating in the Gulf of Alaska N c. 500 GRT towboat operating on the Western Rivers Y d. 349 GRT towing vessel operating between Florida and Puerto Rico 3347: The opening in the deck beneath the anchor windlass that leads to the chain locker is the __________.
N a. hawsepipe N b. fallpipe N c. drop-pipe Y d. spill pipe 3372: The lead of a tow bridle is usually redirected with a __________.
N a. bollard Y b. chock N c. pad eye N d. devil's claw 3436: The signal man assisting the crane operator has one hand occupied and one fist in front of his chest with the thumb pointing outward and is tapping his chest with the heel of his fist. This is the signal to __________.
N a. extend the boom N b. lower the boom Y c. retract the boom N d. hoist the boom 3463: Deckhands onboard towing vessels shall be divided into 3 watches when the trip exceeds __________.
N a. 1000 miles N b. 800 miles N c. 700 miles Y d. 600 miles 3520: A situation has occurred where it becomes necessary for you to be towed. What action should be taken to prevent your vessel from yawing?
N a. Shift weight to the bow N b. Shift weight to the center of the boat Y c. Shift weight to the stern N d. Throw excess weight overboard 4104: The primary objective of a Ro-Ro vessel is to __________.
N a. transfer containers without chassis N b. load the vessel with palletized cargo Y c. transport vehicles N d. be loaded full and down to her marks 4115: Entries should be made in a Ro-Ro vessel’s cargo-securing device record book for __________.
N a. procedures for accepting cargo securing devices N b. procedures for maintaining and repairing cargo-securing devices N c. record of cargo securing device inspections Y d. All of the above 4140: The disadvantage(s) of using web lashing on light vehicles aboard Ro-Ro vessels is that it __________.
N a. deteriorates in sunlight N b. cuts on sharp edges N c. is vulnerable to damage and pilferage 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