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.
90: You are on a multiple-product chemical tanker. The loading plan includes cargoes of diethylenetriamine and formamide. Which statement concerning the stowage of these cargoes is TRUE?
N a. They must be separated by a void space or empty tank. N b. The cargoes must have individual venting systems. N c. The valves in common piping systems must be chained closed and locked. Y d. The minimum segregation required is a single bulkhead. 153: The proper way to correct a mistake in the logbook is to __________.
N a. erase the entry and rewrite N b. draw several lines through the entry, rewrite, and initial the correction N c. completely black out the entry, rewrite, and initial the correction Y d. draw one line through the entry, rewrite, and initial the correction 170: Which is NOT required on a tankship carrying hazardous liquid cargoes in bulk?
N a. A copy of 46 CFR parts 35 and 150 Y b. Certificate of Adequacy for the hazardous cargoes carried N c. Certificate of Inspection issued under the Tank Vessel Regulations N d. Cargo piping plan showing loading rates for all applicable cargo lines 181: Your vessel is on an extended foreign voyage. Several vacancies have occurred in your unlicensed crew through sickness and repatriation. Which statement is correct?
N a. Aliens may be employed except that all U.S. flag vessels must maintain no less than 90% U.S. citizens in the crew. Y b. Qualified aliens may be employed to fill the vacancies. N c. Seamen to fill vacancies must be flown from U.S. to join the vessel in the foreign port. N d. Vacancies can only be filled by U.S. citizens with valid Merchant Mariner's Documents. 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 219: What refers to the depth of a petroleum product in a tank?
Y a. Innage N b. Outage N c. Thievage N d. Ullage 276: As a ship moves through the water, it causes a wake, which is also moving forward relative to the sea. In addition to a fore and aft motion, this wake also has a(n) __________.
N a. downward and inward flow N b. downward and outward flow Y c. upward and inward flow N d. upward and outward flow 285: Which form of navigation may be suspended without notice under defense planning?
N a. celestial Y b. electronic N c. piloting N d. None of the above 565: When the pilot is embarked he or she __________.
N a. relieves the officer of the watch N b. relieves the Master of his duties N c. is solely responsible for the safe navigation of the vessel Y d. is a specialist hired for his or her local navigational knowledge 629: You are planning to use a crude oil washing system. What precaution must be taken with the source tank for the washing machines?
Y a. At least one meter must be decanted from the source tank. N b. The oil in the source tank must be sampled for compatibility. N c. The source tank must have been crude oil washed at least once in the past 150 days. N d. The inert gas system must lower the oxygen content in the source tank to a maximum of 12%. 639: The complete details of a crude oil washing system aboard your vessel, including the operating sequences and procedures, design characteristics, a description of the system, and required personnel will be found in the __________.
N a. Oil Transfer Procedures Manual Y b. Crude Oil Washing Operations and Equipment Manual N c. Code of Federal Regulations N d. Crude Oil Washing addendum to the Certificate of Inspection 683: Barges and vessels are ballasted before departure to __________.
Y a. improve their stability N b. avoid polluting waters where liquid ballast may not be discharged N c. prevent free surface effects N d. allow movement of liquids within the barge for tank cleaning 749: Butadiene, inhibited, is labeled as a __________.
N a. combustible liquid Y b. flammable gas N c. flammable liquid N d. flammable solid 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 800: A Kort nozzle is a(n) __________.
Y a. hollow tube surrounding the propeller used to improve thrust N b. nozzle attached to a firefighting hose N c. intake valve on a diesel engine N d. piston cylinder on a diesel engine 842: When can the US citizenship requirement for the Master of a US-flag uninspected towing vessel be waived?
N a. When US-licensed Masters are not readily available N b. When it costs too much to hire a US-licensed Master N c. When the towing vessel operates shoreward of the boundary line Y d. Never, under any circumstances 973: The "weather adjustment" control on an autopilot steering stand is used to __________.
N a. allow leeway according to the weather conditions N b. proportionally set the number of degrees of rudder response per degree of course error Y c. set the null band or dead zone signal before actuating the rudder N d. set the speed at which the rudder responds 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 1066: If your propeller is racing in rough weather, you should __________.
Y a. decrease your engine speed N b. ignore it N c. increase your engine speed N d. stop your engine until the rough weather passes 1124: Which material makes the strongest mooring line?
N a. Sisal N b. Manila Y c. Nylon N d. Polyethylene 1149: You are on anchor watch. As an aid to preventing thievery on the vessel you should __________.
N a. show running lights, anchor lights and deck lights N b. only show the required anchor lights and keep the rest of the vessel darkened N c. maintain water on deck with firehoses led out and all-purpose nozzles attached Y d. show anchor lights, deck lights and cargo lights hung over the vessel's side 1166: You are 15 feet off a pier and docking a vessel using only a bow and stern breast line. Once the slack is out of both lines you begin to haul in on the bow breast line. What is the effect on the vessel?
N a. The bow will come in and the stern will go out. N b. The whole ship moves toward the pier. Y c. The bow will come in and the stern will remain the same distance off the pier. N d. The stern will come in and the bow will remain the same distance off the pier. 1253: You are preparing to relieve the mate on watch while underway at sea. The watch should not be transferred __________.
N a. during an engine speed change N b. while the Master is on the bridge Y c. during a collision avoidance maneuver N d. All of the above 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. 1312: In illustration D044DG, the mooring line labeled "D" is called a(n) __________. (DO44DG )
N a. stern line N b. forward spring line Y c. after spring line N d. waist breast line 1334: Close link chain of not less the 3/4" (or the wire rope equivalent) is required for lashing deck cargoes of timber. What size flexible wire rope would provide the strength equivalent to 3/4" chain, using a safety factor of 5?
N a. 9/16" Y b. 1" N c. 1 1/4" N d. 1 3/8" 1505: The supplement to the IOPP Certificate contains what type of data?
N a. The grades of cargo that an oil tanker is permitted to carry. Y b. A checklist of the equipment installed for controlling the discharge of oil. N c. The trade routes upon which the vessel may operate. N d. A list of the underwriters who will assume financial responsibility in the event of an oil spill. 1552: Which picture represents a stopper hitch? (DO30DG )
N a. M Y b. N N c. R N d. L 1560: Which arrangement of shell plating is used most in modern shipbuilding?
N a. Clinker Y b. Flush N c. In-and-Out N d. Joggled 1647: Under Naval Control of Shipping who is responsible for routing and diverting ships and convoys?
N a. The Maritime Defense Zone Sector Y b. The Operational Control Authority N c. The National Shipping Authority N d. Any Navy Command 1781: Which organization usually assigns load lines to U.S. vessels?
N a. National Load-Line Agency N b. National Shipping Bureau Y c. American Bureau of Shipping N d. American Regulations Council 1791: Which factor does NOT affect the required freeboard of a cargo vessel?
N a. Season of the year N b. Geographic zone of operation N c. Density of the water Y d. Condition of trim in normal operation 1828: Your vessel is broken down and rolling in heavy seas. You can reduce the danger of capsizing by __________.
N a. constantly shifting the rudder N b. moving all passengers to one side of the boat Y c. rigging a sea anchor N d. moving all passengers to the stern 1836: While towing, what is the principal danger in attempting to swing a barge on a hawser in order to slow the barge's speed?
N a. The barge may swing too quickly and run over the tug. Y b. The barge may pass under the hawser and capsize the tug. N c. Free surface affect of liquid inside the barge may rupture the barge bulkheads when turning too quickly. N d. Dangerous wakes may result from the swinging barge and capsize the tug. 1936: A "gypsy" or "gypsyhead" is a __________.
N a. punt used for painting over the side N b. small, reciprocating steam engine Y c. spool-shaped drum fitted on a winch N d. swinging derrick 1962: The maximum draft to which a vessel can legally be submerged is indicated by the __________.
Y a. load line mark N b. Certificate of Inspection N c. Muster List ("Station Bill") N d. tonnage mark 1974: In a national emergency, when communicating via the Navy, messages are sent by precedence. A message designated PRIORITY will be delivered within __________.
Y a. 1 to 6 hours N b. 30 minutes to 1 hour N c. 3 hours to start of business the following day N d. 10 minutes if possible 1993: The usual method of arranging a line on deck so that it will run out easily without kinking or fouling is __________.
N a. coiling the line Y b. faking down the line N c. flemishing the line N d. racking the line 2108: You are the Master signing on a crew. In completing the articles, who should sign in the various places indicated for the Shipping Commissioner's signature?
N a. After sign on, the articles are presented at the nearest Marine Inspection/Safety Office for signature. N b. The space is left blank. N c. A marine notary public must sign after sign on is complete. Y d. The Master. 2150: The vessel shown has broken down and you are going to take her in tow. The wind is coming from her starboard beam. You are making more leeway than she. Where should you position your vessel when you start running lines? (DO25DG )
Y a. A N b. B N c. C N d. D 2207: After an explosion, repair of emergency machinery and services should be accomplished __________.
Y a. after control of fire, flooding, and structural repairs N b. immediately, before the emergency is under control N c. after control of fire, but before control of flooding N d. after stability is restored 2230: What is the name of tackle number 1? (D029DG )
Y a. Whip N b. One-fold purchase N c. Gun tackle N d. Runner 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 2250: You have determined the maneuvering characteristics of your vessel by taking radar ranges and bearings of an isolated light while making a turn. The results are as shown. Based on this data what is the transfer for a turn of 90°? (D035DG )
Y a. 380 yards N b. 430 yards N c. 485 yards N d. 525 yards 2265: 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 shown. Based on this information, what is the transfer for a turn of 45°? (D034DG )
Y a. 130 yards N b. 165 yards N c. 195 yards N d. 230 yards 2281: Your vessel has run hard aground in an area subject to heavy wave action. Backing full astern failed to free her. Which action should be taken next?
N a. Continue backing to scour out the bottom. N b. Wait for high tide and then try backing. Y c. Flood empty tanks to increase bottom pressure and prevent inshore creep. N d. Shift weight aft to reduce the forward draft. 2311: In a national emergency, when communicating via the Navy, messages are sent by precedence. A message designated FLASH will be delivered within __________.
Y a. 10 minutes if possible N b. 1 to 6 hours N c. 30 minutes to 1 hour N d. 3 hours to start of business the following day 2494: The major components which determine the length of a catenary in a deployed anchor cable are water depth, cable weight, and __________.
Y a. cable tension N b. water temperature N c. bottom conditions N d. water density 2499: Single hull vessels operating exclusively on the Great Lakes must be dry docked at intervals not to exceed __________.
N a. 12 months N b. 24 months N c. 48 months Y d. 60 months 2940: A vessel reduces speed without backing. The rate that her speed through the water decreases depends primarily on the __________.
N a. vessel's horsepower N b. sea state N c. number of propellers Y d. vessel's displacement 2952: Spontaneous heating of coal rapidly accelerates at the approximate minimum temperature of __________.
N a. 88°F Y b. 100°F N c. 111°F N d. 119°F 3076: The part of the anchor indicated by the letter K is the __________. (D038DG )
N a. crown Y b. ring N c. shank N d. bending shot 3502: The point that is halfway between the forward and after perpendicular and is a reference point for vessel construction is the __________.
N a. half length N b. mid-body N c. center line Y d. amidships 3590: When steering a vessel, a good helmsman does NOT __________.
Y a. use as much rudder as possible to maintain course N b. consider steering a vessel a highly responsible job N c. use as little rudder as possible to maintain course N d. advise his relief of the course being steered 3960: The line with the most stretch is __________.
N a. manila Y b. nylon N c. polypropylene N d. dacron 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. 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 4232: The 30 ton capacity pedestal cranes shown in the illustration can lift a maximum weight of how many tons in the twin mode? (D049DG )
N a. 15 tons N b. 30 tons Y c. 60 tons N d. 120 tons 4274: During which condition should the operator of a pedestal crane shutdown operations?
N a. Bunkering barge alongside N b. Potable water spill on deck Y c. Crane hydraulic hose bursts N d. Trim greater than 4 feet 4875: The crane manufacturer's operating tables are posted near the __________.
N a. crane pedestal N b. wire-rope locker N c. main deck Y d. crane controls