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.
5: You are standing the wheelwatch when you hear the cry, "Man overboard starboard side". You should instinctively __________.
N a. give full left rudder Y b. give full right rudder N c. put the rudder amidships N d. throw a life ring to mark the spot 76: Leeway is the __________.
N a. difference between the true course and the compass course N b. momentum of a vessel after her engines have been stopped Y c. lateral movement of a vessel downwind of her intended course N d. displacement of a vessel multiplied by her speed 124: Bilge soundings indicate __________.
N a. the amount of condensation in the hold N b. whether the cargo is leaking or not N c. whether the vessel is taking on water Y d. All of the above 197: Serving is __________.
N a. marline or ratline wound along the grooves of a rope N b. narrow strips of light canvas or cotton cloth spiral-wrapped along the rope Y c. marline tightly wound on the rope by means of a board or mallet N d. a splice made by laying the strand of one rope into the vacated grooves of another rope 246: The force exerted by a propeller which tends to throw the stern right or left is called __________.
N a. slip Y b. sidewise force N c. rotational force N d. thrust 275: You have taken another vessel in tow. You can tell that the towing speed is too fast when the __________.
N a. vessels are not in step N b. tow line feels like it is "jumping" when touched Y c. catenary comes clear of the water N d. towed vessel goes "in irons" 330: You have completed a Dangerous Cargo Manifest for dangerous cargoes loaded on board. It should be kept in a conspicuous location __________.
N a. in the radio room N b. in the ship's office Y c. on or near the bridge N d. outside the Captain's stateroom 357: What does the proof test load of an anchor chain demonstrate?
N a. Breaking strength of the chain Y b. Strength of the chain to a specified limit N c. Adequate holding power for new bottom conditions N d. Safe working load of the chain 371: In the United States, the load line markings are set by the __________.
Y a. American Bureau of Shipping N b. Coast Guard N c. Federal Maritime Board N d. IMO 427: What is the greatest danger of an overriding tow?
N a. Fouling of the towing hawser N b. Loss of steering N c. Tripping Y d. Collision between the tow and the stern of the towing vessel 481: Which U.S. agency assigns an official number to a vessel?
N a. American Bureau of Shipping N b. Collector of Customs N c. Treasury Department Y d. Coast Guard 498: When the dew point of the outside air is higher than the dew point of the air in the cargo hold, you should __________.
N a. energize the exhaust blowers N b. energize the intake blowers Y c. not ventilate the cargo holds N d. ventilate the cargo holds 500: What would NOT require that a detailed report of the release of hazardous cargo be made to the Department of Transportation?
N a. The valve on an empty portable tank that contained acetone is accidentally opened and some of the residue escapes to the open sea. N b. A carboy of nitric acid is broken on deck while loading and is flushed overboard with no injury or damage. Y c. Part of your deck cargo of five gallon cans of paint is damaged and leaking so you jettison them to eliminate the fire hazard. N d. Heavy weather causes damage to packages of a hazardous liquid that is subsequently pumped out at sea through the bilge pumping system. 539: Which type of shackle is used for most towing connections?
Y a. Safety shackles N b. Round pin anchor shackles N c. Screw pin shackles N d. Heart shaped shackles 548: Using the graph shown, if the dry bulb temperature is 55°F (13°C) and the wet bulb is 50°F (10°C), what is the relative humidity? (D008DG )
N a. 55% Y b. 70% N c. 75% N d. 82% 595: The turning circle of a vessel is the path followed by the __________.
N a. outermost part of the ship while making the circle Y b. center of gravity N c. bow N d. tipping center 635: A report of casualty to a vessel must include __________.
Y a. the name of the owner or agent of the vessel N b. an evaluation of who was at fault N c. the amount of ballast on board N d. the estimated cost of damage 636: The use of an anchor to assist in turning in restricted waters is __________.
N a. a last resort Y b. good seamanship N c. the sign of a novice shiphandler N d. to be used only with a single-screw vessel 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 756: A licensed Master of Towing Vessels may NOT serve as the Captain 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. 400 GRT towboat operating on the Western Rivers Y d. 375 GRT towing vessel operating between Texas and Puerto Rico 759: The equipment used to control, protect and connect a towline is called ___________ .
N a. cat head Y b. terminal gear N c. level wind N d. poured socket 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 885: How many wire clips must be used to make a temporary repair to a tow wire?
N a. 3 N b. 4 Y c. 5 N d. Wire clips are never, under any circumstances, permitted 993: Your vessel is docking, but not yet alongside. Which line will be the most useful when maneuvering the vessel alongside the pier?
N a. Bow breast line Y b. Bow spring line N c. Inshore head line N d. Offshore head line 1085: Which of the following statements concerning the rigging of bosuns' chairs and their use is TRUE?
N a. Always secure the gantline to the chair with a bowline. N b. Always have the chair hoisted with at least three turns on a winch drum. Y c. Any tools, paint pots etc. should be secured by lanyards. N d. When riding a stay, make sure that the bow of the shackle passes through the becket of the bridle. 1099: To allow for the rise or fall in tide and for change in draft of a tankship during cargo transfer, cargo hoses must be suspended with __________.
N a. slings or saddles placed at 25-foot (8 meter) intervals Y b. enough slack in their bight N c. topping lifts and runners tied off to winches N d. All of the above 1112: What is an advantage of the 6X37 class of wire rope over the 6X19 class of wire rope of the same diameter?
Y a. Greater flexibility N b. More resistance to corrosion N c. More resistance to elongation N d. Lower weight per foot 1146: While your vessel is docked port side to a wharf, a sudden gale force wind causes the vessel's bow lines to part. The bow begins to fall away from the dock, and no tugs are immediately available. Which measure(s) should you take FIRST?
N a. Call the Master and the deck gang. N b. Slip the stern lines, let the vessel drift into the river, and then anchor. Y c. Let go the starboard anchor. N d. Obtain assistance and attempt to put some new bow lines out. 1201: When clearing customs for a foreign voyage, which of the following is processed at the custom's house and returned to the vessel?
Y a. Shipping Articles N b. Traveling Curio Manifest N c. Official Logbook N d. Cargo Gear Register 1265: You are picking up an unconscious person that has fallen overboard in a fresh breeze. For safety reasons a small craft should approach with the __________.
N a. victim to leeward Y b. victim to windward N c. wind on your port side N d. wind on your starboard side 1396: Lifting the anchor from the bottom is called __________.
N a. broaching the anchor N b. shifting the anchor N c. walking the anchor Y d. weighing the anchor 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 1802: Which picture represents a bowline? (DO30DG )
N a. G N b. H N c. L Y d. Q 1814: In illustration D044DG, the mooring line labeled "D" is called a(n) __________. (DO44DG )
N a. stern line N b. forward spring line N c. waist breast line Y d. after spring line 1868: When being towed by one tug, the towing bridle should be connected to towing __________.
Y a. bitts with figure eights N b. pad eyes with pelican hooks N c. pad eyes with safety hooks N d. All of the above 1901: 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 transmission?
N a. O (IMMEDIATE) N b. Z (FLASH) N c. P (PRIORITY) Y d. R (ROUTINE) 1928: Which towing method maintains the most control over the tow?
N a. Tandem towing N b. Honolulu towing N c. Tandem tug towing Y d. Breasted tug towing 1970: The structural member indicated by the letter L is a __________. (D033DG )
N a. web frame N b. bilge keel N c. side keel Y d. longitudinal 2013: A mooring line that checks forward motion of a vessel at a pier is a __________.
N a. bow line N b. forward bow line Y c. stern line N d. stern breast line 2148: You are the Master 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?
Y a. All crew members must have Merchant Mariner's Documents. N b. A licensed Chief Engineer is required. N c. Deck watches may be 6 and 6. N d. Able Seamen are not required in the deck crew. 2151: Many dangerous cargoes are stowed on deck because of the __________.
N a. danger to crew and cargo N b. necessity of periodic inspection N c. possible need to jettison Y d. All of the above 2189: You are conducting trials to determine the maneuvering characteristics of your vessel. While making a turn you take the ranges and bearings of an isolated light with the results shown. Based on this information, what is the transfer for a turn of 75°? (D034DG )
N a. 340 yards (306 meters) Y b. 280 yards (252 meters) N c. 230 yards (207 meters) N d. 190 yards (171 meters) 2256: 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 180°? (D034DG )
N a. 875 yards Y b. 910 yards N c. 975 yards N d. 1015 yards 2366: To "shore up" the main deck for the stowage of deck cargo means to __________.
N a. weld pad eyes on deck in proper position to secure the cargo Y b. strengthen the main deck by placing pillars underneath it in the tween-decks N c. distribute the weight of the cargo by placing fore-and-aft planks on the main deck N d. package the cargo in wooden crates so it will not damage the deck 2367: What is the volume of a sphere with a radius of 5 feet?
N a. 4,188.00 cubic ft. Y b. 523.60 cubic ft. N c. 129.62 cubic ft. N d. 65.44 cubic ft. 2484: The type of joint formed when an edge of one plate is laid over the edge of the plate to which it is riveted is a __________.
N a. grip joint N b. strap joint N c. thread joint Y d. lap joint 2789: Your vessel is approaching the International Bridge on the St. Marys River. If the gage on the bridge, read from top to bottom, indicates 124 ft. and the IGLD (1955) is 600 ft., determine the actual vertical clearances between the existing water level and the lowest point of the bridge over the channel.
Y a. 124 feet N b. 476 feet N c. 724 feet N d. 840 feet 2789: Your vessel is approaching the International Bridge on the St. Marys River. If the gage on the bridge, read from top to bottom, indicates 124 ft. and the IGLD (1955) is 600 ft., determine the actual vertical clearances between the existing water level and the lowest point of the bridge over the channel.
Y a. 124 feet N b. 476 feet N c. 724 feet N d. 840 feet 2822: Which statement about stopping a vessel is TRUE?
N a. A lightly laden vessel requires as much stopping distance as a fully laden vessel when the current is from astern. N b. A vessel is dead in the water when the back wash from astern operation reaches the bow. N c. A tunnel bow thruster can be used in an emergency to reduce the stopping distance. Y d. When a vessel is dead in the water any speed displayed by Doppler log reflects the current. 3116: You are lifting a 5-ton weight with a single whip rove on a swinging boom set at an angle of 20° to the horizontal. Use the formula for the size of a shackle with a safe working load and determine the minimum size shackle that should be used to secure the head block to the boom?
N a. 1 3/8 inch N b. 1 1/2 inch Y c. 1 3/4 inch N d. 1 7/8 inch 3122: When a tug is "in irons", she __________.
N a. is made fast to the dock with engines secured N b. is in dry dock Y c. may be in danger of being overrun by her tow N d. should pay out more towline 3561: A holder of a license as Operator of Uninspected Towing Vessels may work each 24 hours for a period not to exceed __________.
N a. 24 hours N b. 18 hours Y c. 12 hours N d. 6 hours 3580: You are standing the wheelwatch on entering port and the Master gives you a rudder command which conflicts with a rudder command from the Pilot. What should you do?
Y a. Obey the Master. N b. Obey the Pilot. N c. Bring the rudder to a position midway between the two conflicting orders. N d. Ask the Pilot if he relinquishes control. 4029: Which statement is TRUE concerning toluene?
N a. Its Reid Vapor Pressure is 9.4. N b. The boiling point is 174°F. Y c. It is an aromatic hydrocarbon. N d. It is classified as a grade A flammable liquid. 4070: Small floes of rough, hummocky sea ice capable of damaging a vessel __________.
Y a. can usually be detected by radar in a smooth sea at a range of 4 to 6 kilometers N b. are indistinguishable from sea return on the PPI N c. are invisible to radar when covered with a thick layer of snow N d. are usually seen at night before they are close enough to provide a radar echo 4106: Which of the following are considered to be "road vehicles" that can be carried on Ro-Ro vessels?
N a. Semi-trailer N b. Road train N c. Articulated road train Y d. All of the above 4117: Cargo securing for Ro-Ro is based on the concept of __________.
N a. solid packing Y b. rapid loading and discharge N c. vessel loaded full and down to her marks N d. palletized cargo 4129: Which lashing materials would be used in securing light vehicles aboard Ro-Ro vessels?
N a. Chain lever or turnbuckle Y b. Webbing N c. Chain N d. None of the above 4212: What is another name for the boom of a crane?
N a. Lift N b. Rider Y c. Jib N d. All of the above 4248: Which of the following statements is/are TRUE regarding crane operations?
Y a. The crane operator and signalman must be familiar with hand signals. N b. The cranes can be operated from shoreside. N c. The cranes can be operated from the bridge. N d. All of the above