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.
17: The mooring line labeled "E" is called a(n) __________. (DO44DG )
Y a. bow spring line N b. aft spring line N c. forward breast line N d. bow line 103: Your ship is in shallow water and the bow rides up on its bow wave while the stern sinks into a depression of its transverse wave system. What is this called?
N a. Broaching N b. Fish tailing Y c. Squatting N d. Parallel sinkage 236: As the propeller turns, voids are formed on the trailing and leading edges of the propeller blades causing a loss of propulsive efficiency, pitting of the blades, and vibration. These voids are known as __________.
N a. advance Y b. cavitation N c. edging N d. slip 284: The beam of a vessel refers to the __________.
N a. depth between decks N b. internal cubic capacity N c. molded depth of the vessel Y d. width of the vessel 346: A vessel is equipped with a single right-handed screw. With rudder amidships and calm wind, the vessel will most likely back __________.
N a. straight astern Y b. to port N c. to starboard N d. in no particular direction 355: Generally, you can best keep a vessel under steering control when the vessel has __________.
Y a. headway N b. sternway N c. no way on, with engines stopped N d. no way on, with engines full ahead 398: Peck and Hale gear is used most commonly for securing __________.
Y a. automobiles N b. baled cargo N c. large wooden crates N d. palletized cargo 568: Which statement concerning the carriage of containers is TRUE?
N a. The Chief Mate and Master of a container ship should have the proposed stowage plan ready for the stevedore upon arrival in port. N b. When stowed on deck of a break bulk ship, the bottom of the container must be evenly supported throughout. Y c. With tiered containers, a 40-foot container may be stowed on top of two 20-foot containers. N d. Deck load calculations must take into account the square footage of the entire container bottom. 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 689: When your tug reduces speed to shorten tow, the __________.
N a. length of the tow gets shorter as the strain is reduced N b. tow may continue its momentum and overtake the tug N c. towing hawser may drag the bottom and put the tug in irons Y d. All of the above 726: A common occurrence when a vessel is running into shallow water is that __________.
N a. the wake is less pronounced N b. the vessel is more responsive to the rudder Y c. "squat" will cause a decrease in bottom clearance and an increase in draft N d. All of the above 779: Which statement is TRUE of centrifugal pumps aboard tankers?
Y a. They are gravity-fed. N b. They are more expensive than reciprocating pumps. N c. They are positive displacement pumps. N d. They are used for stripping pumps. 838: You are going to load bales of wool having a stowage factor of 110 in #3 lower hold which has a bale cubic of 72,000. If broken stowage is figured at 15%, how many tons of the wool can be stowed?
Y a. 556 N b. 654 N c. 752 N d. 770 844: Using a safety factor of five, determine the safe working load of a line with a breaking strain of 20,000 pounds.
Y a. 4,000 N b. 5,000 N c. 20,000 N d. 100,000 885: 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 1008: When anyone voluntarily deposits his/her license or document with a Coast Guard investigating officer __________.
N a. he/she permanently gives up rights to the license or document Y b. it may be for reasons of mental or physical incompetence N c. it must be for reason of addiction to narcotics N d. All of the above 1033: Each crewmember has an assigned firefighting station. This assignment is shown on the __________.
N a. fire fighting plan N b. shipping articles N c. Certificate of Inspection Y d. muster list 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 1099: To allow for the rise or fall in tide and for change in draft of a tankship during cargo transfer, cargo hoses must be suspended with __________.
N a. slings or saddles placed at 25-foot (8 meter) intervals Y b. enough slack in their bight N c. topping lifts and runners tied off to winches N d. All of the above 1206: You are landing a single-screw vessel with a left-handed propeller, starboard side to the dock. As you approach the dock you back your engine with your rudder amidships. You would expect the vessel to __________.
N a. lose headway without swinging N b. turn its bow towards the dock Y c. turn its stern towards the dock N d. drift away from the dock 1216: It is easier to dock a right-hand, single-screw vessel __________.
N a. starboard side to the wharf N b. either side to the wharf Y c. port side to the wharf N d. stern to the wharf 1321: Which type of carrier accepts without discrimination all legal cargoes of a shipper?
Y a. Common N b. Industrial N c. Private N d. Tramp 1340: The usual depth of a beam bracket is __________.
Y a. 2 1/2 times the depth of the beam N b. 5 times the depth of the beam N c. 10 times the depth of the beam N d. same depth as the beam 1538: Your vessel is being towed and you are using a tripping rope. A tripping rope of fiber or wire is used to __________.
N a. give added strength to the main tow hawser N b. retrieve the main tow hawser Y c. retrieve the outboard legs of the bridle where they are connected to the fishplate N d. open the pelican hook at the fishplate 1551: A majority of the crew requests a survey from the American Consul to determine a vessel's seaworthiness. The vessel is found unfit to continue her intended voyage. The Consul allows the vessel to sail to another port where deficiencies can be corrected. The crew must __________.
N a. be discharged and given first class passage back to the original port of signing on in lieu of one month's wages N b. be discharged by the American Consul with additional one month's wages until repairs are made N c. be furnished employment on another vessel returning to the United States which is satisfactory to that crew Y d. comply with the judgment 1568: A tackle is "two blocked" when the blocks are __________.
N a. equally sharing the load Y b. jammed together N c. as far apart as possible N d. rove to the highest mechanical advantage 1579: What is the minimum standard for making an eye splice in a wire to be used as cargo gear?
Y a. Make three tucks with full strands, remove half the wires from each strand, and make two more tucks. N b. Make four tucks in each strand, cut away every other strand, and make two more tucks with each remaining strand. N c. Make four tucks with each full strand. N d. Make six tucks with each strand, removing a few wires from each strand as each additional tuck is made. 1601: What would be prima facie evidence of unseaworthiness?
Y a. Overloading N b. Overstowage N c. Overbooking N d. Overcarriage 1665: Which picture in illustration DO30DG represents a sailmaker's whipping? (DO30DG )
N a. E N b. F N c. J Y d. K 1702: Your containership has a container displaying a hazardous cargo placard. The placard has the number 2282 on it. This indicates that it is carrying what cargo?
N a. Isoheptene N b. Phosphine N c. Furan Y d. Hexanols 1719: What is a CORRECT reply to a pilot's request, "How's your head"?
N a. "Steady" N b. "Eased to 10° rudder" N c. "Checked" Y d. "Passing 50°" 1722: In a national emergency, when communicating via the Navy, messages are sent by precedence. A message designated PRIORITY will be delivered within __________.
N a. 3 hours to start of business the following day Y b. 1 to 6 hours N c. 30 minutes to 1 hour N d. 10 minutes if possible 1723: What is meant by the term "two-blocked"?
Y a. The bottom block touches the top block. N b. The line has jumped the sheaves. N c. There are turns in the fall. N d. You have two blocks. 1746: Which would you NOT use to report the amount of anchor chain out? "Three shots __________."
N a. at the water's edge N b. on deck Y c. on the bottom N d. well in the water 1844: A wooden float placed between a ship and a dock to prevent damage to both is called a __________.
Y a. camel N b. dolphin N c. rat guard N d. wedge 1893: A block and tackle is "rove to advantage". This means that the __________.
N a. blocks have been overhauled N b. hauling parts of two tackles are attached Y c. hauling part leads through the movable block N d. hauling part leads through the standing block 1981: The boom stops on a pedestal crane prevent the boom from __________.
Y a. being raised too high N b. swinging at sea N c. overloading when not in use N d. being lowered too low 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 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 2056: A seaman may not make an allotment to his __________.
N a. minor children N b. grandparents N c. brother Y d. mother-in-law 2147: What is the name of tackle number 8? (DO29DG )
N a. Parbuckle Y b. Gun tackle N c. Single purchase N d. Single luff tackle 2149: When anchoring in a clay bottom, what is one hazard that may cause the anchor to drag?
N a. The flukes may dig in unevenly and capsize the anchor when under stress. N b. The flukes may not dig in. Y c. The anchor may get shod with clay and not develop full holding power. N d. The anchor will tend to dig in and come to rest near the vertical. 2184: The lashings on a stack of containers with interlocking fittings restrain the forces that cause __________.
N a. toppling Y b. racking N c. buckling N d. crushing 2189: You are conducting trials to determine the maneuvering characteristics of your vessel. While making a turn you take the ranges and bearings of an isolated light with the results shown. Based on this information, what is the transfer for a turn of 75°? (D034DG )
N a. 340 yards (306 meters) Y b. 280 yards (252 meters) N c. 230 yards (207 meters) N d. 190 yards (171 meters) 2254: You are using tackle number 4 to lift a weight. The hauling part of this tackle is bent to the weight hook (w) of tackle number 10. What is the mechanical advantage of this rig? (D029DG )
N a. 4 N b. 5 N c. 9 Y d. 20 2462: Which term describes a part of a natural fiber line?
N a. Twines Y b. Fibers N c. Lays N d. Lacings 2519: If a passenger vessel navigating the Great Lakes is required to carry 8 ring life buoys, how many of these buoys must have water lights attached?
N a. 8 Y b. 6 N c. 4 N d. 2 2547: In a national emergency, when communicating via the Navy, messages are sent by precedence. A message designated IMMEDIATE will be delivered within __________.
N a. 3 hours to start of business the following day Y b. 30 minutes to 1 hour N c. 1 to 6 hours N d. 10 minutes if possible 2574: You are proceeding down a channel and lose the engine(s). You must use the anchors to stop the ship. Which statement is true?
N a. Pay out all of the cable before setting up on the brake to insure the anchors dig in and hold. N b. For a mud, mud and clay, or sandy bottom pay out a scope of 5 to 7 times the depth before setting up on the brake. Y c. Use one or both anchors with a scope of twice the depth before setting the brake. N d. Drop the anchor to short stay and hold that scope. 2704: The legs of a tow bridle are joined together with a __________.
N a. bridle plate N b. shackle Y c. fishplate N d. tri-link 2769: You will be advised of any hazardous areas due to the fallout of a nuclear explosive by a message with the code word __________.
Y a. MERWARN N b. NUCLEAR N c. FALLOUT N d. FALLWARN 2805: "Hard right rudder" means __________.
N a. jam the rudder against the stops Y b. put the rudder over to the right all the way N c. meet a swing to the right, then return to amidships N d. put the rudder over quickly to 15 degrees right rudder 2816: Which statement is TRUE concerning lighting requirements for Great Lakes vessels?
N a. The showing of a forward masthead light is optional for vessels under 150 meters. Y b. An all-round white light may be carried in lieu of the second masthead light and stern light. N c. Sidelights for vessels over 50 meters are required to have only a two-mile range of visibility. N d. Great Lakes vessels are exempted from the requirement to show yellow towing lights. 2912: When tank cleaning with a portable machine, the weight of the machine is suspended from __________.
N a. solid iron bars clamped to the Butterworth opening Y b. the supply hose N c. the suspension line, usually manila or natural fiber line N d. a wire rope suspension line 2926: Many sheath-screw davits have markings to indicate the maximum angle to which they should be cranked out. If the angle is exceeded, the davit __________.
N a. may jam against the stops N b. will not automatically position the boat at the embarkation station Y c. screw may come out of the sheath N d. will chafe against the falls and may cause their failure 3062: How should you signal the crane operator to swing?
N a. With both arms extended out and palms down, move arms back and forth. N b. With arm extended downwards and forefinger pointing down, move hand in small horizontal circles. Y c. Extend arm and point finger in the direction to move the boom. N d. Place both fists in front of the body with the thumbs pointing outward. 3102: When hip towing, a line led from the stern of the towboat forward to the barge provides the towing pull when __________.
N a. going ahead N b. dead in the water N c. in a following current Y d. backing 3230: After a collision or accident involving an uninspected vessel, regulations require that the operator assist persons affected, but only if the operator can do so without __________.
N a. further damaging the other vessel N b. undue delay Y c. serious danger to his or her own vessel N d. creating a panic on either vessel 3950: In general, an unreinforced vessel can safely navigate in ice provided the concentration does not exceed how many OKTAs?
N a. 1 Y b. 2 N c. 3 N d. 4 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