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.
10: You are scheduled to load a bulk shipment of steel turnings. Which statement is TRUE?
Y a. The primary hazard of this cargo is that it is subject to spontaneous heating and ignition. N b. The shipping papers should describe this cargo as "Waste; steel borings". N c. After loading, you may not sail if the temperature in each hold of steel turnings exceeds 130°F. N d. This cargo may not be transported in bulk unless a special permit is issued by the Coast Guard. 93: A lookout can leave his station __________.
Y a. only when properly relieved N b. at the end of the watch N c. 15 minutes before the end of the watch N d. at any time 112: You start a centrifugal cargo pump to discharge cargo. The pump works for a while and then loses suction. This could NOT be caused by __________.
N a. leaking shaft seals N b. air pockets in the liquid Y c. high cargo level in the tanks N d. a leaking suction line 176: The turning circle of a vessel is the path followed by the __________.
N a. tipping center N b. bow N c. outermost part of the ship while making the circle Y d. center of gravity 286: Sidewise force of the propeller tends to throw a vessel's stern to the right or left, depending on rotation. This force is caused by __________.
N a. back current from the rudder N b. greater pressure on the right or left side of the propeller, depending on rotation N c. lower pressure on the right or left side of the propeller, depending on rotation Y d. torque from the velocity and angle at which the surrounding water impinges upon the propeller blades 306: You are aboard a single-screw vessel with a right-handed propeller. The vessel is dead in the water and the rudder is amidships. If you reverse your engine you would expect your vessel to __________.
Y a. kick its stern to port N b. kick its stern to starboard N c. move astern without swinging N d. swing its stern to starboard, then to port 324: A "chock" is a __________.
N a. deck fitting used to secure mooring lines Y b. casting fitted at the side of a weather deck, used as a fairlead N c. sharp block of wood used to support hygroscopic cargo N d. smoke pipe for the galley stove 349: The periodic weight testing of a vessel's cargo booms may be performed by the __________.
N a. U.S. Coast Guard Y b. American Bureau of Shipping N c. National Cargo Bureau N d. Society of Naval Architects and Marine Engineers 470: A fiber towing hawser should be stowed __________.
Y a. in an enclosed rope locker with adequate air circulation N b. by spooling it on the winch N c. by coiling it on deck N d. by hanging it in the engineroom 493: What does "end for end" mean in regard to a towing hawser?
N a. To take the kinks out of the hawser N b. To fake it down in figure eights N c. To increase the catenary Y d. To swap ends of the hawser to minimize wear 502: You are proceeding under NCS (Naval Control of Shipping) and wish to send a message warning of a hurricane. Which precedence would you assign this message?
N a. Z (FLASH) Y b. O (IMMEDIATE) N c. R (ROUTINE) N d. P (PRIORITY) 519: What is NOT a precaution to be taken when topping off?
N a. Reduce the loading rate. Y b. Notify the engine room of the procedure. N c. Maintain communications with the dock man. N d. Give the operation your undivided attention. 529: When loading a tanker, you should __________.
N a. load only one tank at a time N b. keep the seamen on watch on standby in the mess room N c. keep a strain on the loading hoses Y d. close valves by closing them down, reopening one or two turns, and re-closing 551: The name and hailing port of a documented commercial vessel is __________.
N a. not required to be marked anywhere on the vessel N b. required to be marked on both bows and on the keel Y c. required to be marked on the stern with the name of the vessel marked on both bows N d. required to be marked on the keel, stern, and both bows 578: When loading a container vessel, the operation is basically that of vertical loading. The important factors to be considered when loading containers are port of discharge, __________.
N a. available dunnage, and chocking N b. crushability, and inherent vice N c. sweat, and weight Y d. weight, and refrigeration 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. 647: Synchronous towing means that the __________.
N a. tug is on the crest of a wave while the tow is in the trough N b. tug is in the trough while the tow is riding on the crest of a wave Y c. tug and tow are both in the same relative position on different waves at the same time N d. port and starboard engines on the tug are turning at the same RPM 648: Bulk cargo refers to __________.
N a. cargo which occupies a large volume of space N b. cargo which requires refrigeration N c. cargo which is very dense Y d. homogeneous cargo not enclosed in a container 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 827: The pitch of a propeller is a measure of the __________.
N a. angle that the propeller makes with a free stream of water N b. angle that the propeller makes with the surface of the water Y c. number of feet per revolution the propeller is designed to advance in still water without slip N d. positive pressure resulting from the difference of the forces on both sides of the moving propeller in still water without slip 841: All entries in the Official Logbook must be signed by the Master and __________.
N a. the Union Representative N b. the person about whom the entry concerns N c. no one else Y d. one other crew member 934: Which method is used to detect rot in manila lines?
Y a. Opening the strands and examining the inner fibers N b. Measuring the reduction in circumference of the line N c. Observing for the appearance of mildew on the outer surface N d. Feeling the surface of the line for broken fibers 935: The scuppers had been plugged as required at the time an oil spill occurs on deck. After shutting down the transfer, the engineroom should first be informed and then __________.
N a. rig a fire hose and call for water on deck Y b. spread an absorbent material, such as sawdust N c. remove the plugs from the scuppers N d. sound the general alarm 1167: A vessel will "squat" when it proceeds underway __________.
N a. only in deep water N b. only in shallow water Y c. in all depths of water N d. only in narrow channels 1193: The main advantage of a Chinese stopper over the one line stopper is that it __________.
Y a. will not jam on the mooring line N b. is stronger N c. is easier to use when under heavy tension N d. is safer to use when under heavy tension 1244: Nylon line is NOT suitable for __________.
N a. towing Y b. lashings N c. stoppers N d. mooring lines 1291: "Free pratique" means that __________.
N a. clearance requirements for all regulatory bodies have been met Y b. health requirements have been met and no further quarantine formalities are required N c. shipment will be made at no cost N d. tonnage taxes are not required to be paid 1313: Where should a vessel being towed alongside be positioned for increased maneuverability?
N a. Stern of the towed vessel aft of the stern of the towing vessel N b. Stern of the towed vessel even with the stern of the towing vessel Y c. Stern of the towed vessel forward of the stern of the towing vessel N d. Bow of the towed vessel even with the bow of the towing vessel 1436: How many feet are there in 2 shots of anchor chain?
N a. 50 N b. 60 Y c. 180 N d. 360 1456: How many turns of wire normally mark either side of the shackle 45 fathoms from the anchor?
N a. 1 N b. 2 Y c. 3 N d. 4 1575: The key to rescuing a man overboard is __________.
N a. good communication N b. a dedicated crew N c. good equipment Y d. well-conducted drills 1640: The garboard strake is the __________.
N a. raised flange at the main deck edge N b. riveted crack arrester strap on all-welded ships N c. riveting pattern most commonly used in ship construction Y d. row of plating nearest the keel 1651: Which document is NOT required by law to be posted aboard a vessel?
Y a. Official Crew List N b. Certificate of Inspection N c. Officer's licenses N d. Muster List 1664: A method used to make an eye in a bight of line where it cannot be spliced is known as __________.
N a. braiding N b. plaiting Y c. seizing N d. serving 1678: Grade D combustible liquids have a maximum flash point of __________.
N a. 109°F N b. 100°F Y c. 149°F N d. 80°F 1778: You are landing a single-screw vessel with a right-handed propeller port side to a dock. As you approach the dock, you back down on your engine with rudder amidships. You would expect the vessel to __________.
N a. drift away from the dock N b. lose headway without swinging Y c. swing its stern towards the dock N d. swing its stern away from the dock 1788: Which position shown is the most dangerous when tying up? (D019DG )
Y a. I N b. II N c. III N d. IV 1793: The lines led forward from the bow and aft from the stern when a vessel is moored to the dock are __________.
Y a. bow and stern lines N b. breast lines N c. halyards N d. warps 1833: The standing part of a tackle is __________.
N a. all the fall except the hauling part N b. the hook that engages the weight to be moved N c. that part to which power is applied Y d. that part of the falls made fast to one of the blocks 1845: You are proceeding under NCS (Naval Control of Shipping) and wish to send a message concerning an initial enemy contact. Which precedence would you assign this message?
N a. O (IMMEDIATE) N b. P (PRIORITY) Y c. Z (FLASH) N d. R (ROUTINE) 2014: You are using tackle number 12, as shown, to lift a weight. The hauling part of this tackle is bent to the weight hook (w) of tackle number 2. What is the mechanical advantage of this rig? (D029DG )
N a. 9 N b. 10 Y c. 14 N d. 21 2041: Which tackle arrangement has the LEAST mechanical advantage?
Y a. Single whip N b. Gun tackle N c. Luff tackle N d. Twofold purchase 2178: Segregation of cargoes refers to __________.
Y a. separating cargoes so that the inherent characteristics of one cannot damage the other N b. separating cargoes by destination N c. classifying cargoes according to their toxicity N d. listing the cargoes in order of their flammability 2192: The part of a windlass which physically engages the chain during hauling or paying out is the __________.
N a. devil's claw N b. bull gear Y c. wildcat N d. cat head 2214: 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 advance for a turn of 90°? (D034DG )
N a. 820 yards Y b. 870 yards N c. 930 yards N d. 975 yards 2240: What is the mechanical advantage of tackle number 1? (DO29DG )
N a. 0.5 Y b. 1 N c. 1.5 N d. 2 2279: In plugging submerged holes; rags, wedges, and other materials should be used in conjunction with plugs to __________.
N a. reduce the water pressure on the hull N b. reduce the possibility of stress fractures N c. prevent progressive flooding Y d. reduce the water leaking around the plugs 2579: Where are the test certificates, for wire rope used as cargo runners, and loose gear certificates usually maintained?
Y a. With the Cargo Gear Register on the ship N b. In the Official Log N c. At the Coast Guard Marine Safety Office with the vessel's inspection records N d. At the central records center of the agency testing the cargo gear 2666: On the Great Lakes, short-term fluctuations in water levels may be a result of any of the following EXCEPT __________.
N a. strong winds N b. sudden changes in barometric pressure N c. seiches Y d. below normal rain fall 2699: The thickness of a 30.6 pound plate is __________.
N a. 3/8" N b. 1/2" Y c. 3/4" N d. 1" 2808: Under the forces of its own weight, the suspended length of line will fall into a shape known as a __________.
N a. polygon N b. holding arc Y c. catenary curve N d. parabolic curve 3004: What is NOT a basic shiphandling rule for navigating in ice concentrations on the Great Lakes?
N a. Keep moving - even very slowly, but keep moving. N b. Work with the ice movement, not against. Y c. Transit ice along pressure ridges when possible. N d. Excessive speed means ice damage. 3056: Advection fog holds longest over which portions of the lakes?
Y a. Northwest N b. Southeast N c. Northeast N d. Southwest 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 3449: What term indicates an inward curvature of the ship's hull above the waterline?
N a. Camber Y b. Tumble home N c. Deadrise N d. Flare 3450: Kort nozzles are installed around the propellers of some vessels to __________.
Y a. increase the thrust of the propeller N b. protect the propeller from striking sawyers N c. prevent the propeller from striking barges towed on the hip N d. prevent the propeller from touching bottom in low water 4051: You are the operator of an uninspected vessel which is involved in an accident. You are not required to assist people affected by the accident if __________.
N a. the other vessel did not appear to be sinking N b. it would unduly delay your voyage N c. the other vessel was at fault Y d. it would cause serious danger to your vessel 4119: The securing of passenger cars on a Ro-Ro vessel requires __________.
N a. simple and lightweight equipment N b. low labor intensive equipment N c. specially designed equipment to avoid vehicle damage Y d. All of the above 4153: What should you be concerned with when loading and securing vehicles on a Ro-Ro?
Y a. Number, position and angle of lashes N b. Number of axles N c. Disconnecting the battery cables to prevent fire hazard N d. Minor air pressure changes in the tires 4154: What should you be concerned with when loading and securing vehicles aboard a Ro-Ro vessel?
N a. That all fuel is drained from the vehicles' tanks to prevent fire hazard Y b. The size, weight, and center of gravity of vehicle/cargo unit N c. The preferred stowage of vehicles is athwartships wherever possible N d. The vehicles' brakes should not be set to allow for adjusting the lashings