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.
3: A stopper used in securing the ground tackle for sea that consists of a grab attached to a turnbuckle is a __________.
N a. riding pawl N b. buckler Y c. devil's claw N d. locking ring 39: Combustible liquids are divided into how many grades?
N a. One Y b. Two N c. Three N d. Four 43: In illustration D044DG, the mooring line labeled "D" is called a(n) __________. (DO44DG )
Y a. after spring line N b. forward spring line N c. waist breast line N d. stern line 72: You are in the process of loading 465,000 barrels of cargo oil. At 1030, on 5 November, you gauge the vessel and find that you have loaded 203,000 barrels. At 1200 you find that you have loaded 218,000 barrels. If you continue loading at the same rate, you will finish at approximately __________.
N a. 1510, 5 November N b. 1104, 6 November Y c. 1242, 6 November N d. 0735, 7 November 139: A "barrel" is a unit of liquid measure equivalent to __________.
N a. 40 U.S. gallons at 50°F Y b. 42 U.S. gallons at 60°F N c. 43 U.S. gallons at 65°F N d. 45 U.S. gallons at 75°F 167: 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 is solely responsible for the safe maneuvering of the ship only if he is required to be on board by law. Y b. The Master is responsible for the safe navigation of the ship and the Pilot is employed for his local knowledge. N c. The Pilot is solely responsible for the internal working of the ship. N d. The Pilot becomes solely responsible for the safe navigation of the vessel only if the Master relinquishes the conn. 172: While a vessel is in a foreign port where there is no American Consul, a seaman becomes violent prior to sailing. The Master should __________.
N a. call local police, put the seaman in prison ashore, and sail the vessel N b. pay off the seaman and make arrangements with the agent to return him to the original port of signing on in the U.S. Y c. put the seaman in irons and sail to the next port where there is an American Consul N d. send the seaman ashore and arrange with the agent to repatriate him by armed guard 245: The fitting that allows a boom to move freely both vertically and laterally is called the __________.
N a. swivel N b. lizard N c. spider band Y d. gooseneck 386: You are maneuvering a vessel with a right-hand propeller. The rudder is amidships. The vessel will generally back __________.
Y a. to port N b. to starboard N c. in a straight line directly astern N d. downstream, the stern going in the direction of the current 453: What purpose does a tow hook serve?
Y a. To quickly connect or release the towing hawser N b. To help pick up the towing hawser from the water N c. To prevent the towing hawser from fouling the propeller N d. To recover the towing hawser from a barge 471: The official identification of a vessel is found in the __________.
N a. Certificate of Inspection N b. Classification Certificate N c. Load Line Certificate Y d. Certificate of Documentation 504: Anchors are prevented from running out when secured by the __________.
N a. brake N b. devil's claw N c. pawls Y d. All of the above 640: Which factor(s) can affect the performance of a river towboat?
N a. The draft of the towboat and the draft of the barges under tow N b. The placement of the barges within the tow N c. The presence of flanking rudders and Kort nozzles Y d. All of the above 699: Under which condition is a tug likely to be tripped?
N a. When the tow "jumps" on the line N b. While making up to tow a large oil rig Y c. When the towing hawser leads forward of the quarter N d. When the tug exerts maximum bollard pull with the tow close astern 745: When carrying a cargo of asphalt or molten sulfur, which are carried at temperatures of over 300°F, one of the biggest dangers is __________.
Y a. water in the tanks or pipelines N b. having the cargo too cool N c. explosion of vapors after discharge N d. inadequate ullage space 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 916: A condition where two currents meet at the downstream end of a middle bar can be determined by a __________.
N a. small whirlpool N b. smooth patch of water Y c. V-shaped ripple with the point of the V pointing downstream N d. V-shaped ripple with the point of the V pointing upstream 958: You are in a tropical port. The refrigeration machinery on a container loaded with air-cooled fruit fails. It cannot be repaired for 18 to 24 hours. Which step should you take to reduce the temperature rise and spoilage of the fruit?
N a. Discharge a cylinder of nitrogen into the container Y b. Shade the container and periodically hose it down N c. Seal any ventilation openings and add dry ice N d. Spread ice over the top layer and in any voids within the container 1045: If a hydraulic pump on a winch accidentally stops while hoisting, the load will stay suspended because __________.
Y a. a check valve will close and prevent reverse circulation N b. a centrifugal counterweight counteracts the force of gravity. N c. the electric pump motor will cut out N d. the control lever will move to the stop position 1078: By law, the maximum penalty for failing (without reasonable cause) to give aid in the case of collision is __________.
N a. one year imprisonment or $500 Y b. two years imprisonment or $1000 N c. two years imprisonment or $1500 N d. two years imprisonment or $2000 1104: Nylon line can be dangerous because it __________.
N a. breaks down when wet N b. kinks when wet N c. is not elastic Y d. stretches 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 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. 1689: The mooring line shown as "C" is called a __________. (DO44DG )
N a. stern line N b. spring line N c. shore line Y d. breast line 1693: What is the stress on the hauling part when lifting a 4900 lbs. weight using a twofold purchase rove to least advantage? (Allow 10 percent of the weight per sheave for friction.)
N a. 980 lbs. N b. 1225 lbs. Y c. 1715 lbs. N d. 1837 lbs. 1704: Whipping the bitter end of a fiber rope __________.
N a. increases the circumference of the rope N b. makes for easier handling Y c. prevents fraying of the bitter end N d. prevents moisture from entering the bitter end 1737: When evacuating a seaman by helicopter lift, which course should the ship take?
N a. Downwind so that the apparent wind is close to nil. Y b. A course that will keep a free flow of air, clear of smoke, over the hoist area. N c. A course that will have the hoist area in the lee of the superstructure. N d. With the wind dead ahead because the helicopter is more maneuverable when going into the wind. 1772: What is the volume in a cone with a base diameter of 32 feet and a height of 21 feet?
N a. 8,444.60 cubic ft. N b. 7,732.81 cubic ft. Y c. 5,629.73 cubic ft. N d. 703.72 cubic ft. 1787: Which picture represents a blackwall hitch? (DO30DG )
N a. F N b. H N c. P Y d. S 2054: What is the name of the mark indicated by the letter B in the diagram? (D003DG )
N a. Timber summer load line Y b. Tropical fresh water load line N c. Tropical load line N d. Summer load line 2223: What is the mechanical advantage of tackle number 3? (DO29DG )
N a. 1 N b. 2 Y c. 3 N d. 4 2237: Using the graph in illustration D008DG, if the dry bulb temperature is 76° and the wet bulb temperature is 59°, what is the relative humidity in a cargo hold? (D008DG )
Y a. 34% N b. 47% N c. 76% N d. 79% 2354: What is the area of a circle with a diameter of 21 feet after a sector of 72° has been removed?
Y a. 277.09 square ft. N b. 149.43 square ft. N c. 69.27 square ft. N d. 52.78 square ft. 2388: What is the area of a circle with a diameter of 4 feet after a sector of 120° has been removed?
N a. 2.67 square ft. N b. 4.19 square ft. Y c. 8.38 square ft. N d. 10.67 square ft. 2395: Determine the area of a triangle with a base of 4.7 feet and a height of 6.3 feet.
N a. 29.6 square ft. N b. 26.2 square ft. N c. 18.5 square ft. Y d. 14.8 square ft. 2399: You are standing wheel watch on entering port and the Master gives you a rudder command which conflicts with a rudder command from the Pilot. What should you do?
N a. Obey the Pilot. N b. Bring the rudder to a position midway between the two conflicting positions. N c. Ask the Pilot if he relinquishes control. Y d. Obey the Master. 2472: A "liner" in riveted construction of a vessel is a(n) __________.
Y a. small plate which fills the aperture between riveted strakes and the vessel framing N b. backing plate which is used to level the strakes while riveting, and then removed N c. internal frame to which the side shell is riveted N d. seam that is welded after riveting is completed 2488: A vessel is constructed with a steel hull and an aluminum superstructure. Which statement is TRUE?
N a. The aluminum will provide greater resistance to the spread of fire by conduction. Y b. The aluminum structure is usually attached to a steel coaming by a method that insulates the two metals. N c. If the superstructure is stressed, an aluminum structure requires additional expansion joints to prevent fracture. N d. The steel at the area of the aluminum-to-steel connection must be closely checked for galvanic corrosion. 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 2510: Mooring lines should be turned end-for-end occasionally. This is because __________.
N a. a line is weakened by constantly pulling on it in one direction Y b. normal wear on the line is thus distributed to different areas N c. it prevents the line from kinking or unlaying N d. it prevents permanent misalignment of the line's internal strands 2602: As you hold a piece of manila line vertically in front of you, the strands run from the lower right to the upper left. Which type of line is this?
N a. Plain-laid N b. Shroud-laid Y c. Left-hand laid N d. Water-laid 2794: The Great Lakes Edition of the Notice to Mariners is published __________.
Y a. weekly by the 9th Coast Guard District N b. monthly by the Army Corps of Engineers N c. monthly by the Naval Oceanographic office N d. biweekly by the Commandant, U.S. Coast Guard 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 2869: When more than one vessel is being assisted by an icebreaker, distances between vessels should be constant. Which signal should be given by a vessel which is ahead of another and whose speed suddenly begins to drop?
N a. Four short blast on the whistle N b. A flag hoist consisting of the code figure "4" Y c. A flag hoist consisting of the code figure "5" N d. A flag hoist consisting of the code letters "FE" (Foxtrot-Echo) 2957: Your vessel is to dock bow in at a pier without the assistance of tugboats. Which line will be the most useful when maneuvering the vessel alongside the pier?
N a. Bow breast line N b. Inshore head line N c. Stern breast line Y d. Bow spring line 3141: What is NOT a securing system used on a containership?
N a. Lashing system Y b. Stacking system N c. Locking system N d. Buttress system 3360: On a light tow, what could you substitute for a fishplate?
Y a. heart-shaped shackle N b. pelican hook N c. swivel N d. ring 3487: The opening in the deck that leads the anchor cable outside the hull is the __________.
Y a. hawsepipe N b. fall pipe N c. drop-pipe N d. spill pipe 3540: While on duty as a look-out, which other duty may you perform?
N a. Sweep down the fo'c'sle N b. Paint any area near your station N c. Overhaul a block, as long as it is at your look-out station Y d. None of the above 3652: You are lifting a one-ton weight with a swinging boom. When comparing the stresses in the rig with the boom at 20° to the horizontal to the stresses when the boom is at 60° to the horizontal, which statement is TRUE?
N a. The stress on the topping lift is greater at 60°. N b. The thrust on the boom is greater at 20°. N c. The stress on the heel block is less at 20°. Y d. The stress on the masthead fairlead for the topping lift is greater at 20°. 4057: Your vessel is to dock bow in at a pier without the assistance of tugboats. Which line will be the most useful when maneuvering the vessel alongside the pier?
Y a. Bow spring line N b. Inshore head line N c. Stern breast line N d. Bow breast line 4088: With a given load on the cargo hook, the thrust on a cargo boom __________.
Y a. increases as the angle to the horizontal increases N b. increases as the angle to the horizontal decreases N c. is greatest at an angle of 45° and decreases as the boom is raised or lowered N d. is least at an angle of 45° and increases as the boom is raised or lowered 4090: The BEST holding ground for conventional anchors is_____.
N a. very soft mud Y b. hard mud N c. shale N d. rock 4101: Which of the following is a characteristic of a Ro-Ro vessel?
N a. Passenger tours available upon docking N b. Long port stays necessary to secure vehicles Y c. Short in port turnaround times N d. Heavy vehicles only require lightweight securing equipment 4135: An advantage of using chain lashing on heavy vehicles aboard Ro-Ro vessels is that it __________.
Y a. has long life N b. is light weight N c. absorbs shock N d. has fine adjustment 4143: Which tensioning device is used with wire rope lashing to secure vehicles aboard Ro-Ro vessels?
N a. Chain lever N b. Buckle tensioner Y c. Adjust-a-matic tensioner N d. Ratchet tensioner 4155: Which factor(s) should be considered when loading vehicles or trailers aboard Ro-Ro vessels?
N a. Layout of decks N b. Vertical clearances N c. Tie-down and lashing Y d. All of the above 4187: Which of the following is the stated proper sequence before commencing cargo operations aboard Ro-Ro vessels?
N a. Start ventilation, lower the ramp, notify engine room N b. Lower the ramp, start ventilation, notify engine room Y c. Notify engine room, lower the ramp, start ventilation N d. Start ventilation, notify engine room, lower the ramp 4229: Which of the following is/are the optional component(s) of a twin crane set as shown? (D047DG )
N a. Boom assembly N b. Hook block assembly Y c. Rider block tagline system N d. All of the above 4267: Which statement is TRUE concerning the tandem working arrangement of pedestal cranes when completing a quad lift?
Y a. The discharge is slow due to the size of the cargo and all the cranes working together. N b. The cargo discharge can be accomplished with controlled pendulation. N c. The cargo discharge can be performed in port or at anchor. N d. The cranes enable the handling of heavy cargos without shoreside assistance.