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.
92: You start a centrifugal cargo pump to discharge cargo. The pump works for a while and then loses suction. This could be caused by __________.
N a. the pump running backwards Y b. incomplete priming N c. the discharge head being too high N d. All of the above 128: Which is characteristic of a "special cargo"?
N a. The cargo gives off toxic gases when heated. N b. Periodic inspection is required while in transit to prevent spoilage. Y c. It is of high value or easily pilferable. N d. It must be stowed on deck. 141: On a sea going towing vessel of 150 gross tons, there are six (6) seamen in the deck crew. How many certificated able seamen are required if the voyage is over 600 miles?
N a. 1 N b. 2 N c. 3 Y d. 4 142: What is NOT an advantage of centrifugal pumps over reciprocating pumps?
N a. They pump more cargo in less time. N b. They are smaller for equivalent pumping ability. N c. They are less expensive. Y d. They require priming for stripping. 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 270: The disadvantage of using a heaving line to pass a towline is that __________.
N a. it increases the likelihood of collision between the towing vessel and the disabled vessel Y b. recreational boaters tend to make the heaving line fast to the towed vessel as if it were the towline N c. the monkey fist may injure someone N d. it may reduce the catenary and increase yawing 295: Which publication offers information on Great Lakes ice services?
N a. Light List volume VII Y b. U.S. Coast Pilot #6 N c. Marine Weather Log N d. National Weather Service, Ice Outlooks 300: On which form do you provide a written report of Marine Casualty to the nearest Coast Guard Marine Safety Office?
N a. DD 214 Y b. CG 2692 N c. DOT 211 N d. CG 5511 370: Cottonseed oil is classed as a __________.
Y a. combustible liquid N b. flammable liquid N c. flammable solid N d. poison B 389: When hooking up a cargo hose to your vessel's manifold, you should use a(n)______________.
N a. international shore connection Y b. insulating flange or single length of non-conducting hose N c. self-contained breathing apparatus N d. oxygen analyzer 390: A package contains nitric acid solution and is radioactive. The radiation level at the package surface is .36 millirems per hour. How should this package be labeled?
N a. Radioactive II and oxidizer N b. Radioactive II and poison Y c. Radioactive I and corrosive N d. Fissile class I 407: You are carrying cargoes of crotonaldehyde, phosphoric acid, and morpholine on your multiple-product tankship. Which of the following statements is TRUE?
Y a. Each of the cargoes must be segregated from the other by at least two barriers. N b. The minimum protective clothing required for taking samples of phosphoric acid is goggles or a face shield. N c. Aluminum, copper, and zinc are prohibited in all valve parts in contact with these cargoes. N d. The required warning sign must have the legend "cancer hazard" added to it. 536: Your vessel is backing on the starboard screw, and going ahead on the port screw. The bow will __________.
N a. back on a straight line N b. move ahead on a straight line N c. swing to port Y d. swing to starboard 656: A deep draft VLCC (100,000 DWT+) navigating in a narrow channel or canal __________.
Y a. draws more water than when underway in deep water N b. draws less water with an increase in speed N c. requires less power for a given speed N d. steers better under full power 709: The designations A,B,C,D, and E grades of cargo refer to the __________.
N a. degrees of quality of petroleum products Y b. flash point range and Reid vapor pressure index of petroleum products N c. grades of crude oil N d. pour point, color, and viscosity index of petroleum products 740: The extension of the after part of the keel in a single- screw vessel upon which the stern post rests is called the __________.
N a. boss N b. knuckle Y c. skeg N d. strut 750: On a single-screw vessel the stern frame _____________,
Y a. furnishes support to the rudder, propeller shaft, and transom frame N b. provides foundations for after mooring winches N c. provides foundations for the main propulsion engines N d. transfers the driving force of the propeller to the hull 819: Which pump must be primed?
N a. Rotary pump N b. Reciprocating pump Y c. Centrifugal pump N d. All of the above 843: If the Master of a US-flag towing vessel replaces any crew member with a non-US citizen, he/she must ensure that the ___________ .
N a. replacement holds a license or document equivalent in experience and training to a mariner holding US credentials N b. replacement can communicate with other crew members to the extent required by regulations N c. vessel is on a foreign voyage, outside US jurisdiction, and not operating above the US outer continental shelf Y d. all of the above 850: Panting frames are located in the __________.
N a. after double bottoms N b. centerline tanks on tankships Y c. fore and after peaks N d. forward double bottoms 872: In a foreign port with a consulate, the U.S. Consul may excuse the Master from personally appearing before him to consent to the mutual release of an injured seaman, when the __________.
Y a. injury requires immediate inpatient hospitalization of the seaman N b. Master authorizes the agent to act in his place N c. ship is still in port and the seaman can appear before the Consul after medical treatment N d. seaman also consents to the absence, and there is no dispute as to the wages due 900: Camber, in a ship, is usually measured in __________.
N a. feet per feet of breadth N b. feet per feet of length Y c. inches per feet of breadth N d. inches per feet of length 936: A precaution you should take before bunkering is to __________
N a. plug the vents N b. plug the sounding pipes Y c. plug the scuppers N d. close the lids on the vents 940: When selecting the fuel oil tanks for the "burn-out" of bunkers during a voyage consideration of all of the following must be taken with the EXCEPTION of __________.
Y a. flashpoint N b. stability N c. trim N d. list 954: In order to correctly open a new coil of manila line, you should __________.
N a. pull the tagged end from the top of the coil Y b. pull the tagged end through the eye of the coil N c. secure the outside end and unroll the coil N d. unreel the coil from a spool 991: When an azimuth of the Sun has been taken and the deviation of the standard magnetic compass computed, the watch officer should record the results __________.
N a. in the vessel's Official Logbook N b. on the compass deviation card Y c. in the compass deviation log N d. on a Napier diagram 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 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 1310: Which statement is TRUE concerning protection of double bottom tanks against excessive pressure?
N a. Each vent for the tank must be equal to the area of the tank filling line. N b. The tanks must be protected by overflows. Y c. The total area of the vents or the overflow shall be at least 125% of the area of the fill line. N d. There must be twice as much vent area as the area of the fill line. 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 1402: What form of ice is of land origin?
N a. Shuga N b. Floe N c. Spicule Y d. Bergy bit 1470: Signs of racking stresses generally appear at the __________.
N a. bow and stern shell frames and plating Y b. junction of the frames with the beams and floors N c. garboard strake, at each side of the keel N d. thrust bearing of the main shaft 1544: The main function of the core of a wire rope is to __________.
N a. give flexibility Y b. support the strands laid around it N c. allow some circulation around the strands N d. allow lubrication inside the rope 1628: You are going ahead on twin engines when you want to make a quick turn to port. Which actions will turn your boat the fastest?
Y a. Reverse port engine; apply left rudder N b. Reverse port engine; rudder amidships N c. Reverse starboard engine; apply left rudder N d. Reverse starboard engine; rudder amidships 1657: What is the perimeter of a circle with a radius of 5.1 feet?
N a. 81.71 ft N b. 64.08 ft N c. 40.85 ft Y d. 32.04 ft 1662: Under defense plans, operation of electronic aids to navigation may be temporarily suspended with __________.
N a. one day's notice N b. thirty (30) days notice Y c. no notice N d. a week's notice 1675: What is the name of the mark indicated by the letter D? (D003DG )
Y a. Tropical load line N b. Summer load line N c. Fresh load line N d. Winter load line 1696: Mooring with two bow anchors has which major advantage over anchoring with one bow anchor?
N a. The vessel will not reverse direction in a tidal current. Y b. The radius of the vessel's swing will be shortened. N c. A mooring approach may be made from any direction. N d. The vessel will not swing with a change in wind. 1715: Which statement concerning a 298 GRT inspected tug engaged in towing from Seattle, WA, to Alaska is TRUE?
Y a. Each crew member must be issued a certificate of discharge at the time of discharge. N b. No able seamen are required. N c. Crew must be signed on before a Shipping Commissioner. N d. A licensed Master of Towing Vessels may serve as Master. 1766: When anchoring in a current, you should __________.
N a. drop the anchor with the bow headed downstream N b. back your vessel into the current Y c. anchor while stemming the current N d. All of the above 1790: Which space(s) is(are) exempt when measuring gross tonnage?
N a. Auxiliary machinery spaces above the uppermost continuous deck N b. Steering gear room N c. Part of the wheelhouse used to control vessel Y d. All of the above 1988: When towing, what is the main reason for using a chain bridle on a wire hawser?
N a. It makes for an easy connection. Y b. It gives a spring effect to cushion the shock. N c. It eliminates the necessity of a swivel. N d. It does not chafe. 2043: A mooring line that prevents a vessel from moving sideways away from the dock is a __________.
N a. bow line Y b. breast line N c. stern line N d. spring line 2092: You are signing on a crew. When they present their Merchant Mariner's Documents, you should suspect a fraudulent document if it has a single endorsement that says __________.
N a. see Certificate of Registry N b. any unlicensed rating in the deck department including AB N c. Steward's Department (F.H.) Y d. Bosun 2350: A temporary wire eye splice made with three wire rope clamps will hold approximately what percentage of the total rope strength?
N a. 20% N b. 50% Y c. 80% N d. 99% 2470: Which type of bottom provides most anchors with the best holding ability?
N a. Clay and rocks N b. Soft mud Y c. Sandy mud N d. Soft sand 2608: Most very large ocean going vessels, such as bulk carriers and large tankers, tend to squat __________.
Y a. by the bow N b. by the stern N c. at the end nearest the bottom N d. evenly fore and aft 2617: The operator of an uninspected vessel MUST assist people affected by an accident if he or she can do so without __________.
N a. undue delay Y b. serious danger to his or her own vessel N c. creating a panic on either vessel N d. further damaging the other vessel 2626: The "grip" of a joint represents the __________.
Y a. thickness of the connected members N b. diameter of the head N c. entire length of the rivet N d. diameter of the shank 2644: The boat is stowed on the davit rather than on a cradle with which type of davit?
Y a. Crescent N b. Sheath-screw boom N c. Quadrantal N d. Radial 2679: Great Lakes cargo vessels, having a liferaft stowed more than 100 meters from the bow or stern, must have at least how many liferafts?
N a. One Y b. Two N c. Three N d. Four 3073: You are on a large merchant vessel entering a U.S. port. There is a Pilot on board and he has the conn. Which statement is TRUE?
N a. The Pilot becomes solely responsible for the safe navigation of the vessel only if the Master relinquishes the conn. N b. The Pilot is solely responsible for the safe maneuvering of the ship only if he is required to be on board by law. Y c. The Master is responsible for the safe navigation of the ship and the Pilot is employed for his local knowledge. N d. The Pilot is solely responsible for the internal working of the ship. 3098: A weight of 1,000 short tons is equivalent to __________.
N a. 1,500 foot-pounds N b. 2,240 long tons N c. 2,000 pounds Y d. 2,000 kips 3134: When using two tugs to assist in mooring a large, deeply laden ship, the most powerful tug is usually placed __________.
Y a. forward to control the bow N b. amidships to move the entire vessel evenly N c. aft to assist the ship's rudder and propeller N d. anywhere, since the maneuverability of the tug governs the placement not the power 3282: What term indicates the immersed body of the vessel aft of the parallel mid-body?
Y a. Run N b. Stern N c. Counter N d. Flow 3327: The upward slope of a vessels bottom from the keel to the bilge is called __________.
N a. camber N b. sheer N c. rake Y d. rise of bottom 3500: Small hull leaks can be temporarily repaired by __________.
N a. parceling N b. parbuckling Y c. caulking N d. seizing 4159: 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. Four 4204: Which of the following statements is FALSE concerning cranes being installed on the centerline of vessels?
Y a. A centerline crane can never be operated in tandem. N b. One crane is able to work one end of two adjacent hatches. N c. These cranes are more economical and weigh less than outboard-mounted cranes. N d. One crane is able to work both sides of the ship. 4252: Which action(s) is/are included in crane operations?
N a. Normal boom stowage and shutdown operations N b. Emergency shutdown operation N c. Removing booms from stowage Y d. All of the above