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.
119: Sour crude oil __________.
Y a. contains high quantities of hydrogen sulfide N b. is diluted with other products for carriage N c. is lighter than other crudes N d. is less hazardous to load than other crudes 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 232: The angle at which the fluke penetrates the soil is called the __________.
N a. tripping angle Y b. fluke angle N c. penetration angle N d. holding angle 294: Displacement refers to the __________.
N a. cubic capacity of a vessel N b. deadweight carrying capacity of a vessel N c. gross tonnage of a vessel Y d. number of long tons of water displaced by a vessel afloat 332: The helm command "Meet her" means __________.
N a. steer more carefully Y b. use rudder to check the swing N c. decrease the existing rudder angle N d. note the course and steady on that heading 347: You are the person in charge of a 199 GRT uninspected towing vessel engaged in coastwise towing from the Gulf of Mexico to the New York area, a distance in excess of 600 miles. Which statement is FALSE?
Y a. Certificates of Discharge are not required to be issued. N b. All crew members shall have Merchant Mariner's Documents. N c. Able seamen are required in the deck crew. N d. The sailors shall be divided into 3 watches. 432: A licensed Master of Towing Vessels may NOT serve as the person in charge 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. 480 GRT towboat operating on the Western Rivers Y d. 405 GRT towing vessel operating between Florida and the US Virgin Islands 480: What is NOT a requirement for the preparation of used, gasoline-propelled cars if they are to be carried as ordinary cargo and not as hazardous cargo?
N a. The engine must be run until it dies from lack of fuel. Y b. The fuel tank must be inerted with CO2. N c. The ignition key may not be in the ignition. N d. The vehicle must be inspected for fuel leaks. 527: What equipment is NOT used to protect a towing hawser?
N a. Hawser boards and chafing gear Y b. Halyards and snaphooks N c. Seizing wire, rope yarn and marline N d. Norman pins and tow spans 572: A vessel is entering port "A" for the first time and has a Pilot conning the vessel. The Master is unsure that the Pilot is taking sufficient action to prevent a collision. What should the Master do?
N a. Nothing; The Pilot is required by law and is solely responsible for the safety of the vessel. N b. State his concerns to the Pilot but do not interfere with the handling of the vessel. N c. Direct the Pilot to stop the vessel and anchor if necessary until the situation clears. Y d. Recommend an alternative action and if not followed relieve the Pilot. 594: A bollard is found on the __________.
N a. beach N b. deck Y c. pier N d. towed vessel 634: The "iron mike" is a(n) __________.
N a. pilot N b. speaker N c. standby wheel Y d. automatic pilot 649: Before a tank is to be crude oil washed, the oxygen content in the tank must be measured at a position __________.
N a. immediately above the level of the oil N b. at the top of the tank N c. in the vent riser Y d. one meter from the deck 652: When plugging holes below the waterline you should __________.
N a. eliminate all water entering the hole N b. only plug holes in machinery or other vital spaces Y c. reduce the entry of water as much as possible N d. plug the largest holes first 835: For towing vessels over 100 gross tons that are permitted to maintain a two-watch system, what percentage of the deck crew must be able seamen?
Y a. 50% N b. 65% N c. 75% N d. 100% 867: Who may perform as a lookout?
N a. A member of the engineering watch Y b. A member of the navigational watch N c. A member of the Stewards Department N d. All of the above 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 932: When bunkering at a dock which of the following signals must be displayed?
N a. A yellow flag by day, red light by night Y b. A red flag by day, red light by night N c. A green flag by day, green light by night N d. A red flag by day, a blue light by night 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 990: Freeboard is measured from the upper edge of the __________.
N a. bulwark Y b. deck line N c. gunwale bar N d. sheer strake 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 1030: If an attempt is made to hoist a load that exceeds the capacity of an electric winch, an overload safety device causes a circuit breaker to cut off the current to the winch motor __________.
N a. when the line pull reaches the rated winch capacity Y b. after the line pull exceeds the rated winch capacity N c. after a short build-up of torque N d. immediately 1073: You are preparing to slush a stay on your vessel by lowering yourself down the stay in a bosun's chair. The proper way to do this is to ride down the stay on a riding shackle __________.
N a. with the pin of the shackle riding on the stay Y b. with the pin of the shackle through the chair's bridle eye N c. with a hook attaching the chair to the riding shackle N d. connected to a second shackle on the chair 1171: If you intend to land tulip bulbs from Holland in a U.S. port, they must be inspected by the __________.
Y a. Animal and Plant Health Service Inspector N b. Captain of the Port personnel N c. Quarantine Officer N d. All of the above 1187: You are taking the bow line from the port bow of a large vessel that is underway when the stern of your tug comes in contact with the vessel. The forward motion of both vessels causes your tug to be turned toward the other vessel and contact the stem thereby being "stemmed". You should immediately __________.
N a. stop engines and the vessel's wake will push you clear of the bow Y b. go full astern with rudder amidships N c. go full ahead with the rudder hard over to starboard N d. go full ahead with the rudder amidships 1235: You are on watch entering port while the pilot has the conn. The pilot gives a steering command to the helmsman who partially repeats the command. You should immediately __________.
Y a. repeat the Pilot's command and ensure that the helmsman repeats it completely N b. ask the Pilot to repeat the command since the helmsman failed to hear it completely N c. observe the helmsman's wheel action to be sure that it complies with the Pilot's command N d. ignore the helmsman's response as long as it was close to what the Pilot ordered 1443: The Safety of Life at Sea Convention was developed by the __________.
N a. U.S. Coast Guard N b. American Bureau of Shipping Y c. International Maritime Organization N d. American Institute of Maritime Shipping 1495: A common class of wire rope is the 6X37 class. What does the 37 represent?
N a. Number of wires in the inner core N b. Number of strands per wire rope N c. Tensile strength of the wire Y d. Number of wires per strand 1509: If an electric cargo winch is being used to lift a draft of cargo and the engine room loses all power, which will occur?
N a. A pawl, forced by a spring mechanism, will engage the teeth of the bull gear and hold the load. Y b. An electromagnetic brake will hold the load where it is suspended. N c. The load will fall rapidly to the deck unless the foot brake is engaged. N d. The load will slowly lower to the deck under control of the drag of the winch motor. 1603: Which weakens a line the LEAST?
N a. Clove hitch N b. Long splice Y c. Short splice N d. Square knot 1604: Which knot would serve best as a safety sling for a person working over the side?
N a. Bowline on a bight Y b. French bowline N c. Jug sling N d. Lifting hitch 1712: You are to load styrene in bulk, which is subject to self-polymerization. You must __________.
N a. not carry any cargo in the tanks surrounding the tank loaded with styrene N b. inject nitrogen to pad any ullage above the styrene to prevent contact with oxygen Y c. be furnished with a Certificate of Inhibition to be maintained on the bridge N d. use heating coils to maintain the styrene within the temperatures specified by the shipper 1734: Which knot reduces the strength of a line by the LEAST amount?
N a. Bowline N b. Clove hitch N c. Sheet bend Y d. Two half hitches 1931: You are using tackle number 12 to lift a weight of 300 lbs. If you include 10 percent of the weight for each sheave for friction, what is the pull on the hauling part required to lift the weight? (DO29DG )
N a. 80 lbs. Y b. 69 lbs. N c. 55 lbs. N d. 50 lbs. 2000: The vessel has broken down and you are going to take her in tow. The wind is on her starboard beam. Both vessels are making the same amount of leeway. Where should you position your vessel when you start running lines? (D025DG )
N a. A N b. B Y c. C N d. D 2026: After a seaman is discharged, at the end of the voyage, the final payment of wages due must be made, whichever is earliest, either within 24 hours after the cargo has been discharged, or __________.
Y a. within 4 days after the seaman's discharge N b. prior to the vessel's departure on the next voyage N c. prior to loading any out-bound cargo N d. prior to any change of Master 2031: Multi-year ice is the hardest sea ice and should be avoided if possible. It is recognizable because of what tone to its surface color?
N a. Greenish Y b. Bluish N c. Grey N d. Grey-white 2116: What is the name of tackle number 10 in illustration DO29DG? (DO29DG )
N a. Two-two purchase N b. Deck purchase Y c. Two-fold purchase N d. Double runner 2146: You are on a single-screw vessel with a right-handed propeller. The vessel is going full speed astern with full right rudder. The bow will swing __________.
N a. quickly to port, then more slowly to port Y b. probably to port N c. slowly to port, then quickly to starboard N d. probably to starboard 2195: You have determined the maneuvering characteristics of your vessel by taking the radar ranges and bearings of an isolated light while making a turn. The results are as listed. Based on this data what is the transfer for a turn of 180°? (D035DG )
N a. 745 yards N b. 770 yards Y c. 840 yards N d. 890 yards 2221: You are using tackle number 5 to lift a weight. The hauling part of this tackle is bent to the weight hook (w) of tackle number 8. What is the mechanical advantage of this rig? (DO29DG )
N a. 20 Y b. 15 N c. 10 N d. 5 2227: You are using tackle number 4 in illustration DO29DG to lift a weight of 120 lbs. If you include 10 percent of the weight for each sheave for friction, what is the pull on the hauling part required to lift the weight? (DO29DG )
N a. 20 lbs. N b. 30 lbs. Y c. 42 lbs. N d. 57 lbs. 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% 2275: When inspecting wire rope before a hoisting operation, one must look for __________.
N a. fishhooks N b. kinks N c. worn spots Y d. All of the above 2285: While writing in the logbook at the end of your watch, you make an error in writing an entry. What is the proper way of correcting this error?
N a. Remove this page of the log book and rewrite all entries on a clean page. N b. Carefully and neatly erase the entry and rewrite it correctly. N c. Blot out the error completely and rewrite the entry correctly. Y d. Cross out the error with a single line, write the correct entry, and initial it. 2288: What will cause wire rope to fail?
N a. Operating the winch too fast N b. Using a sheave 9 times the wire's diameter N c. Kinking Y d. All of the above 2335: When two lines are spliced together, __________.
N a. the size of the lines at the splice decreases Y b. they are stronger than if knotted together N c. the overall strength of each line is increased N d. the bitter ends will resist rotting 2746: Which of the Great Lakes experiences the least amount of water level fluctuation between seasonal high and low water marks?
N a. Lake Huron N b. Lake Erie Y c. Lake Superior N d. Lake Michigan 2883: While you are on watch entering port, the Master gives the helmsman a rudder command which conflicts with a rudder command from the Pilot. You should make sure the helmsman __________.
N a. brings the rudder to a point midway between the two conflicting positions N b. obeys the Pilot N c. asks you for instructions Y d. obeys the Master 2924: You are on a large vessel fitted with a right-handed controllable-pitch propeller set at maximum forward pitch. Which statement about reversing is TRUE?
N a. When the pitch is reversed, the stern will slew to port even with headway. N b. The vessel will respond to the rudder until sternway is developed, then the stern will slew to starboard. Y c. There will probably be a loss of steering control. N d. The vessel will have full rudder control throughout the speed change from ahead to astern. 3014: You are lifting a 3 ton weight with a single whip rove on a swinging boom set at an angle of 60° 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 1/8 inch Y b. 1 1/2 inch N c. 1 3/4 inch N d. 2 inch 3234: Rolling is angular motion of the vessel about what axis?
Y a. Longitudinal N b. Transverse N c. Vertical N d. Centerline 3514: Which type of anchor is depicted? (D038DG )
N a. Stock N b. Danforth Y c. Patent N d. Old-fashioned 3681: While you are on watch entering port, the Master gives the helmsman a rudder command which conflicts with a rudder command from the Pilot. You should make sure the helmsman __________.
N a. obeys the Pilot Y b. obeys the Master N c. asks you for instructions N d. brings the rudder to a point midway between the two conflicting positions 4040: When towing another vessel astern, the length of the towline should be __________.
N a. as long as possible N b. such that one vessel will be on a crest while the other is in a trough Y c. such that the vessels will be "in step" N d. not over two wave lengths in seas up to 10 feet 4066: What is the MOST irritating to the skin?
N a. Carbon disulfide N b. Ethyl alcohol N c. Isoprene Y d. Oleum 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 4163: 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 20 tons and 30 tons, when carried on Ro-Ro vessels?
N a. One N b. Two Y c. Three N d. None of the above 4206: Which piece(s) of equipment is/are required to "twin-up" 30-ton pedestal cranes aboard a crane vessel?
Y a. Equalizing beam N b. Portable power swivel N c. 20-foot container spreader N d. All of the above 4239: Which safety precaution(s) should be observed during crane operations?
N a. Checking for proper lifting from beneath the load during cargo operations Y b. Using the proper slings or other lifting devices during cargo operations N c. Relaying communications to port agents on the pier during cargo hoists N d. All of the above