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.
51: You are the licensed Master of a 100 GT towing vessel sailing coastwise. What percentage of the deck crew must be able to understand any order spoken by the officers?
N a. 50% N b. 65% Y c. 75% N d. 100% 97: Chafing gear should be placed __________.
Y a. at all wearing points of mooring lines N b. at the bitter ends of all standing rigging N c. around running rigging N d. on wire rope only 98: A hygroscopic cargo is defined as a cargo __________.
Y a. capable of absorbing moisture in the form of a gas N b. capable of giving off moisture in the form of a liquid N c. that is shipped in a liquid state N d. that will ignite in contact with water 169: The lowest temperature at which a liquid will give off sufficient vapors to form a flammable mixture with air is known as the __________.
N a. fire point Y b. flash point N c. lower explosive limit N d. threshold limit value 179: The minimum temperature required to ignite gas or vapor without a spark or flame being present is called __________.
N a. flash point N b. fire point Y c. autoignition temperature N d. lower explosive limit 193: On a transpacific voyage, you receive a message from your vessel's operators saying that your vessel has been consigned to Naval Control of Shipping. Further information is contained in __________.
N a. the Light List N b. the International Code of Signals (PUB 102) Y c. Radio Navigational Aids (PUB 117) N d. the Coast Pilot 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 252: You have orders to load cargoes of carbon disulfide, diisopropylamine and pyridine on your multi-product tankship. Which statement is true?
N a. Carbon disulfide may be carried in NOS. 1 and 2 center tanks and diisopropylamine in NOS. 1 and 2 wing tanks. Y b. Pyridine and diisopropylamine may not be carried in tanks having a common header vent. N c. Pyridine must be separated from carbon disulfide by two barriers (cofferdams, voids, empty tanks, etc.). N d. A tank of diisopropylamine may be used to separate a tank of pyridine from a tank of carbon disulfide. 252: You have orders to load cargoes of carbon disulfide, diisopropylamine and pyridine on your multi-product tankship. Which statement is true?
N a. Carbon disulfide may be carried in NOS. 1 and 2 center tanks and diisopropylamine in NOS. 1 and 2 wing tanks. Y b. Pyridine and diisopropylamine may not be carried in tanks having a common header vent. N c. Pyridine must be separated from carbon disulfide by two barriers (cofferdams, voids, empty tanks, etc.). N d. A tank of diisopropylamine may be used to separate a tank of pyridine from a tank of carbon disulfide. 392: Which statement is TRUE concerning insulating flanges?
Y a. They should be inspected and tested periodically to ensure that the insulation is clean and in good condition. N b. Switching off a cathodic protection system may be substituted for using an insulating flange N c. The measured resistance value after installation should be less than 1,000 ohms. N d. After the insulating flange is installed, hot work may be performed on deck. 469: With an increase in temperature the volume of flammable and combustible liquids __________.
Y a. expands N b. contracts N c. remains constant N d. remains constant if pressure remains constant 498: When the dew point of the outside air is higher than the dew point of the air in the cargo hold, you should __________.
N a. energize the exhaust blowers N b. energize the intake blowers Y c. not ventilate the cargo holds N d. ventilate the cargo holds 582: In illustration D044DG, the mooring line labeled "E" is called a(n) __________. (DO44DG )
N a. after spring line Y b. bow spring line N c. forward breast line N d. bow line 595: The turning circle of a vessel is the path followed by the __________.
N a. outermost part of the ship while making the circle Y b. center of gravity N c. bow N d. tipping center 657: Which space(s) is(are) deducted from gross tonnage to derive net tonnage?
N a. Companions and booby hatches N b. Open structures Y c. Spaces for the exclusive use of the officers or crew N d. Water ballast spaces 686: The effect known as "bank cushion" acts in which of the following ways on a single-screw vessel proceeding along a narrow channel?
Y a. It forces the bow away from the bank. N b. It forces the stern away from the bank. N c. It forces the entire vessel away from the bank. N d. It heels the vessel toward the bank. 728: How many board feet of dunnage are in a draft 4 feet wide, 1-1/2 feet high and 13 feet long?
N a. 84 N b. 756 Y c. 936 N d. 1021 733: Before leaving port on an ocean tow, a tug captain should assure himself of all the following EXCEPT __________.
N a. the towing hawser can be released quickly in an emergency N b. the correct navigation lights are rigged and operable on the tug and tow Y c. an insurance underwriter has prepared a pre-sailing survey N d. a pick-up wire has been rigged on the tow in case of a breakaway. 744: When using natural-fiber rope, you should NEVER __________.
N a. dry the line before stowing it N b. reverse turns on winches periodically to keep out kinks Y c. try to lubricate the line N d. use chafing gear 766: Insufficient space between the hull and bottom in shallow water will prevent normal screw currents resulting in __________.
N a. waste of power N b. sudden sheering to either side N c. sluggish rudder response Y d. All of the above 858: The lower hold of your vessel has a bale capacity of 60,000 cubic feet. How many tons of cotton in bales having a stowage factor of 85 can be stowed in the lower hold, assuming a broken stowage factor of 20%?
N a. 141 Y b. 565 N c. 706 N d. 847 985: You have the "conn" at the time the helmsman who is steering by hand reports that the rudder is not responding to the wheel. Your FIRST action should be to __________.
N a. call the engineroom and report that you have lost steering N b. signal the engineroom to stop the engines Y c. shift the selector switch to the other steering system N d. call the Master 1029: When cleaning a tank by the Butterworth process, you should begin to pump out the slops __________.
N a. at the end of the drop schedule Y b. when the process is started N c. when the process is finished N d. when the tank is clean 1122: Freeing ports on a vessel with solid bulwarks __________.
N a. prevent stress concentration in the bulwark N b. permit easy jettison of deck cargo in an emergency N c. provide openings through the bulwarks for mooring lines Y d. allow water shipped on deck to flow off rapidly 1127: All entries in the Official Logbook must be signed by the Master and __________.
N a. the Chief Engineer N b. the person about whom the entry concerns Y c. one other crew member N d. No other signature is required. 1176: You have arrived at your anchorage location. You have put the engines astern prior to letting go the anchor. How will you know when the vessel has stopped over the ground?
N a. The ship's log reads zero N b. The backwash of the propeller reaches amidships Y c. An azimuth bearing on the beam remains steady N d. All of the above 1280: Vertical structural members attached to the floors that add strength to the floors are called __________.
N a. boss plates N b. buckler plates Y c. stiffeners N d. breast hooks 1518: Your vessel is being towed and back-up wires have been installed. Back-up wires carry the towing load in the event that the __________.
N a. bridle legs part Y b. towing bitt or pad eye fails N c. bight ring fails N d. main towing hawser parts 1692: Your containership has a container displaying a hazardous cargo placard. The placard has the number 2206 on it. This indicates that it is carrying what cargo?
Y a. Isocyanates, n.o.s. N b. Propadiene, inhibited N c. Xylenol N d. Hexanols 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 1829: The term "shift your rudder" means __________.
Y a. change from right rudder to left rudder an equal number of degrees N b. double your rudder angle or go to full rudder N c. bring your rudder amidships N d. check the swing of the vessel 1832: The run of plating labeled A is known as the __________. (D033DG )
N a. sheer strake Y b. stringer plate N c. deck strake N d. deck longitudinal 1982: You are using tackle number 8 to lift a weight of 100 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. 120 lbs. N b. 55 lbs. Y c. 40 lbs. N d. 37 lbs. 1991: Using the graph shown, if the dry bulb temperature is 91°, and the wet bulb temperature is 87°, what is the relative humidity in a cargo hold? (D008DG )
N a. 79% Y b. 85% N c. 91% N d. 98% 1999: When shoring a damaged bulkhead, effort should be taken to spread the pressure over the __________.
Y a. maximum possible area N b. minimum possible area N c. nearest watertight door N d. nearest longitudinal girder 2005: A block that can be opened at the hook or shackle end to receive a bight of the line is a __________.
N a. bight block N b. gin block N c. heel block Y d. snatch block 2019: A man was sighted as he fell overboard. After completing a Williamson turn, the man is not sighted. What type of search should be conducted?
N a. Expanding circle Y b. Sector search N c. Parallel track pattern N d. Datum-drift search 2163: What is the name of tackle number 7? (DO29DG )
Y a. Runner N b. Inverted whip N c. Whip N d. Single purchase 2238: What is the area of a circle with a radius of 12 feet after a sector of 60° has been removed?
N a. 18.85 square feet N b. 75.40 square feet N c. 94.25 square feet Y d. 376.99 square feet 2263: You are using tackle number 1 in illustration DO29DG to lift a weight of 100 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. 50 lbs. N b. 55 lbs. N c. 100 lbs. Y d. 110 lbs. 2270: In a national emergency, when communicating via the Navy, messages are sent by precedence. A message designated ROUTINE will be delivered within __________.
N a. 10 minutes if possible N b. 1 to 6 hours N c. 30 minutes to 1 hour Y d. 3 hours to start of business the following day 2393: Determine the weight of a rectangular piece of 25.5 lbs. steel measuring 4.5 feet by 6.7 feet.
N a. 285.6 lbs. N b. 329.7 lbs. N c. 591.2 lbs. Y d. 768.8 lbs. 2481: 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. P (PRIORITY) Y b. Z (FLASH) N c. R (ROUTINE) N d. O (IMMEDIATE) 2540: In small craft terminology, all of the anchor gear between a boat and her anchor is called the __________.
N a. stock N b. chock N c. scope Y d. rode 2559: A vessel in Great Lakes service shall carry anchors in accordance with standards established by the __________.
Y a. American Bureau of Shipping N b. Canadian Coast Guard N c. U.S. Coast Guard N d. underwriter of the vessel 2570: When a line is laid down in loose, looping figure-eights, it is said to be __________.
Y a. faked N b. flemished N c. coiled N d. chined 2600: A smooth, tapered pin, usually of wood, used to open up the strands of a rope for splicing is called a(n) __________.
N a. batten N b. bench hook N c. awl Y d. fid 2804: Which publication is NOT carried on board U.S. merchant vessels operating under Naval Control of Shipping?
N a. Allied Control of Shipping Manual - Guide to Masters N b. Communications Supplement Y c. Tactical Control and Routing of Merchant Vessels N d. All of the above are carried on board 3064: What is the meaning of a flag hoist consisting of the code letters "WM" (Whiskey Mike) when displayed by an icebreaker?
N a. "I am going ahead; follow me." N b. "You should stop your vessel instantly." Y c. "Icebreaker support is now commencing." N d. "Icebreaker support is finished." 3070: What is an advantage of a gate valve over a butterfly valve?
Y a. Less frequent maintenance N b. Faster operation N c. Cheaper N d. More compact 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 3220: If you are guilty of failure to properly perform your duties as Master of Uninspected Towing Vessels, which of the following actions may NOT be taken?
N a. Issuance of a letter of warning N b. Suspension of your license N c. Revocation of your license Y d. A fine placed against your license 3290: What will be accepted as the shipping papers for an unmanned tank barge but will not be accepted if the tank barge is manned?
N a. Bill of Lading Y b. Logbook entry N c. Manifest N d. Shipping document 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 3599: What term indicates the outward curvature of the hull above the waterline?
N a. sheer N b. tumble home N c. deadrise Y d. flare 3722: The next-to-last shot of an anchor cable is usually painted __________.
N a. white N b. international orange Y c. yellow N d. red 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 4136: A disadvantage of using chain lashing on heavy vehicles aboard Ro-Ro vessels is that it __________.
N a. can wrap around cargo N b. is easily damaged N c. is affected by temperature Y d. does not absorb shock 4141: What is/are the advantage(s) of using web lashing on light vehicles aboard Ro-Ro vessels?
N a. Good working life N b. Light and easy to handle N c. Flexible Y d. All of the above 4269: Which action(s) should the operator of a pedestal crane take if crane control is lost?
N a. Let go of both control levers and return to neutral position. N b. Press the emergency stop. N c. Notify the mate on watch. Y d. All of the above