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.
50: A vessel is entering port 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. Y c. Recommend an alternative action and if not followed relieve the Pilot. N d. Direct the Pilot to stop the vessel and anchor if necessary until the situation clears. 54: Your vessel has grounded on a bar. What should you do?
N a. If you cannot get clear immediately, lighten the ship by pumping all ballast overboard. N b. Run the engine full astern to keep from being set further onto the bar. Y c. Switch to the high suction for condenser circulating water, if it is submerged. N d. All of the above 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 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 137: The system of valves and cargo lines in the bottom piping network of a tank barge that connects one section of cargo tanks to another section is called a __________.
N a. come-along Y b. crossover N c. manifold N d. runaround 157: The proper way to correct a mistake in the logbook is to __________.
Y a. draw a line through the entry, rewrite, and initial the correction N b. draw several lines through the entry, rewrite, and initial the correction N c. erase the entry and rewrite N d. completely black out the entry, rewrite, and initial the correction 197: Serving is __________.
N a. marline or ratline wound along the grooves of a rope N b. narrow strips of light canvas or cotton cloth spiral-wrapped along the rope Y c. marline tightly wound on the rope by means of a board or mallet N d. a splice made by laying the strand of one rope into the vacated grooves of another rope 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. 405: At the establishment of Naval Control of Shipping (NCS), ships at sea will __________.
N a. stop and await further orders N b. attempt to make their way to the nearest port of a friendly nation and await further instructions Y c. continue voyages unless in danger areas defined in the advisory or supplemental message N d. keep radio silence 444: A metal object on the pier resembling a tree stump and made to receive mooring lines is a __________.
N a. bight Y b. bollard N c. chock N d. camel 448: Hygroscopic cargoes should be ventilated when __________.
Y a. going from a warm to a cold climate N b. the dew point of the outside air is greater than the dew point of the air in the hold N c. the dew point of the air in the hold is very low N d. the outside dew point is 60°F (16°C) and the cargo temperature is 54°F (12°C) 556: You may BEST turn a twin-screw vessel about, to the right, in a narrow channel by using __________.
N a. both engines ahead and helm N b. one engine only Y c. port engine ahead and the starboard engine astern N d. both engines astern and use helm 607: A lashing used to secure two barges side by side, lashed in an "X" fashion, is called a __________.
Y a. scissor wire N b. towing wire N c. breast wire N d. cross wire 621: Which document shows details of a tank vessel, cargoes it may carry, manning and safety equipment required?
N a. Safety Construction Certificate N b. Cargo Gear Certificate Y c. Certificate of Inspection N d. Declaration of Inspection 670: You must evacuate a seaman by helicopter lift. Which statement is TRUE?
N a. The ship should be stopped with the wind off the beam while the helicopter is hovering overhead. N b. The basket or stretcher must not be allowed to touch the deck. N c. The tending line of the litter basket should be secured to the ship beyond the radius of the helicopter blades. Y d. The hoist line should be slack before the basket or stretcher is hooked on. 694: An advantage of nylon rope over manila rope is that nylon rope __________.
N a. can be used in conjunction with wire or spring-lay rope N b. can be stored on decks exposed to sunlight Y c. can hold a load even when a considerable amount of the yarns have been abraded N d. gives audible warning of overstress whereas manila does not 821: The Master must maintain the Oil Record Book on board for at least __________.
N a. 1 month N b. 12 months N c. 24 months Y d. 36 months 948: Twenty-five hundred (2500) tons of iron ore with a stowage factor of 17 is stowed in a cargo hold. The dimensions of the hold are 55 feet long and 45 feet wide and 35 feet high. What is the height of the center of gravity of the ore above the bottom of the hold?
N a. 7.8 feet Y b. 8.6 feet N c. 17.1 feet N d. 34.6 feet 1039: When cleaning cargo tanks with portable machines, how is the machine grounded?
N a. Bonding wires are secured from the machine to a convenient location on deck. N b. The machines must maintain physical contact with the deck at the Butterworth opening. Y c. The water supply hoses contain internal wires that act as conductors N d. The water jets impinging on the vessel's structure form a pathway to ground. 1092: When a helmsman receives the command "Right 15 degrees rudder," the helmsman's immediate reply should be __________.
N a. "Rudder is right 15 degrees" N b. "Aye Aye Sir" Y c. "Right 15 degrees rudder" N d. No reply is necessary, just carry out the order. 1103: What should you inspect to be sure that it is safe to go aloft in a bosun's chair?
N a. The gantline N b. The tail block N c. The chair and bridle Y d. All of the above 1175: 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 making way?
N a. The ship's Doppler log reads zero Y b. The backwash of the propeller reaches amidships N c. An azimuth bearing on the beam remains steady N d. All of the above 1184: A new coil of nylon line should be opened by __________.
N a. pulling the end up through the eye of the coil N b. uncoiling from the outside with the coil standing on end N c. taking a strain on both ends Y d. unreeling from a spool 1221: Your vessel is in Charleston, S.C. You need not clear Customs if __________.
Y a. all the cargo on board is of U.S. origin and destined for New York N b. you took on no new cargo in Charleston, S.C. and are bound for Puerto Rico and thence foreign N c. you did not discharge any cargo in Charleston and are bound for Panama N d. you did not load any cargo in Charleston and are bound for Halifax 1272: You are on a tankship carrying benzene in bulk. Which statement is TRUE?
N a. No other cargoes may be carried due to the possibility of contamination by a carcinogen. N b. The crew quarters must have positive-pressure ventilation to prevent the fumes from entering the living spaces. N c. Benzene is not a cancer-causing agent. Y d. Personnel working in regulated areas must use respirators. 1308: The S.S. Sheet Bend arrives in New York after encountering heavy weather on a voyage from Cape Town. Who will note the protest for the Master?
N a. Collector of Customs Y b. Notary Public N c. Officer in Charge Marine Inspection N d. U.S. Shipping Commissioner 1334: Close link chain of not less the 3/4" (or the wire rope equivalent) is required for lashing deck cargoes of timber. What size flexible wire rope would provide the strength equivalent to 3/4" chain, using a safety factor of 5?
N a. 9/16" Y b. 1" N c. 1 1/4" N d. 1 3/8" 1461: While a vessel is at sea, the mate on watch discovers a fire in one of the hatches. Fire hoses are used to put the fire out and some of the cargo is damaged by water. In marine insurance terms, this partial loss by water is called __________.
N a. an Act of God N b. fire and water damage Y c. general average N d. particular average 1477: Under the Carriage of Goods by Sea Act of 1936, a vessel will be liable for damage to a cargo when the damage arises out of __________.
N a. delays due to seizure of the vessel N b. fire caused by fault of the carrier N c. strikes or lockouts Y d. improper stowage 1532: To determine the number of portable fire extinguishers required on an inspected vessel, you should check the __________.
N a. hot work permit Y b. Certificate of Inspection N c. Safety of Life at Sea Certificate N d. Muster List ("Station Bill") 1620: Owing to the greater girth of a ship amidships than at the ends, certain strakes are dropped as they approach the bow and stern to reduce the amount of plating at the ends. These strakes are called __________.
Y a. drop strakes N b. stealers N c. throughs N d. voids 1632: In which casualty case is it UNNECESSARY to notify the local Coast Guard Marine Safety Office?
Y a. Your vessel strikes a pier and does $1,500 damage to the pier but none to the vessel. N b. A nylon mooring line parts while the vessel is tied up and kills a harbor worker who was on the pier. N c. A seaman is injured and in the hospital for four days. N d. Your vessel is backing from a dock and runs aground, but is pulled off by tugs in 30 minutes. 1665: Which picture in illustration DO30DG represents a sailmaker's whipping? (DO30DG )
N a. E N b. F N c. J Y d. K 1762: What is the perimeter of a circle with a radius of 2.5 feet?
N a. 7.86 ft Y b. 15.71 ft N c. 19.63 ft N d. 22.71 ft 1809: The greatest horizontal stress between the heads of the booms in the yard and stay rig occurs when the load is in such a position that the __________.
Y a. falls are at an equal angle to the horizontal N b. stay fall is vertical N c. stay fall is at a greater angle to the horizontal than the yard fall N d. yard fall is at a greater angle to the horizontal than the stay fall 1818: When comparing twin screw tug to single-screw tugs, which statement about a twin-screw tug is FALSE?
N a. If one engine fails, you do not lose control of the tow. N b. It is more maneuverable. Y c. It develops more bollard pull for the same horsepower. N d. It is generally subject to more propeller damage from debris in the water. 1915: A butt is indicated by which letter? (D033DG )
N a. J N b. F N c. E Y d. D 2048: The MINIMUM acceptable size for a towing bridle would be that size in which the safe working load (SWL) of each leg of the bridle is equal to __________.
N a. one-half the SWL of the main towing hawser N b. three-fourths the SWL of the main towing hawser Y c. that of the main towing hawser N d. twice that of the main towing hawser 2081: A seaman is reported missing in the morning and was last seen after coming off the mid-watch. Which type of turn would you use to return to the track-line steamed during the night?
Y a. Williamson N b. Racetrack N c. 180° turn N d. Anderson 2103: You are signing on the Purser. He should present a Merchant Mariner's document with which endorsement?
Y a. See Certificate of Registry N b. Steward's Department N c. Purser N d. Staff Officer 2126: You have anchored in a mud and clay bottom. The anchor appears to be dragging in a storm. What action should you take?
N a. Shorten the scope of the cable. N b. Veer cable to the anchor. N c. Drop the other anchor underfoot. Y d. Drop the second anchor, veer to a good scope, then weigh the first anchor. 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% 2396: Determine the area of a triangle with a base of 5.8 feet and a height of 2.1 feet.
N a. 12.2 square ft. N b. 7.9 square ft. Y c. 6.1 square ft. N d. 3.0 square ft. 2557: Which Naval Control of Shipping publication should be aboard your vessel?
Y a. ATP-2 Vol. II - Allied Control of Shipping Manual N b. NWP-II - Underway Replenishment Guide N c. Warship Recognition Cards N d. ATP-1 - Allied Tactical Signals 2567: When relieving the helm, the new helmsman should know the __________.
N a. variation N b. gyro error Y c. course per magnetic steering compass N d. maximum rudder angle previously used 2622: You must shore up the collision bulkhead due to solid flooding forward. The bulkhead approximates an inverted triangle. The center of pressure of the shores on the bulkhead should be located __________.
N a. evenly over the surface of the bulkhead Y b. approximately two-thirds of the way up the bulkhead N c. approximately halfway up the bulkhead N d. at the bottom of the bulkhead 2792: When relieving the helm, the new helmsman should find it handy to know the __________.
N a. variation in the area Y b. amount of helm carried for a steady course N c. leeway N d. deviation on that heading 2900: Which statement about Naval Control of Shipping in wartime is TRUE?
Y a. It is mandatory in wartime. N b. It is mandatory in hazardous areas and voluntary in other areas. N c. It is mandatory only for vessels sailing in convoy. N d. It is mandatory for vessels bound foreign and voluntary for vessels in the coastwise trade. 2920: You are on a large vessel fitted with a right-handed controllable-pitch propeller. When making large speed changes while decreasing pitch, which statement is TRUE?
N a. You will probably have full directional control throughout the speed change. Y b. You may lose rudder control until the ship's speed has dropped to correspond to propeller speed. N c. The stern will immediately slew to starboard due to unbalanced forces acting on the propeller. N d. The stern will immediately slew to port due to unbalanced forces acting on the propeller. 2920: You are on a large vessel fitted with a right-handed controllable-pitch propeller. When making large speed changes while decreasing pitch, which statement is TRUE?
N a. You will probably have full directional control throughout the speed change. Y b. You may lose rudder control until the ship's speed has dropped to correspond to propeller speed. N c. The stern will immediately slew to starboard due to unbalanced forces acting on the propeller. N d. The stern will immediately slew to port due to unbalanced forces acting on the propeller. 3018: When turning a vessel in shallow water, which statement is TRUE?
N a. The rate of turn is increased. N b. The rate of turn is decreased. Y c. The turning diameter increases. N d. The turning diameter remains the same. 3242: What term indicates the line drawn at the top of the flat plate keel?
Y a. Base line N b. Molded line N c. Designer's waterline N d. Keel line 3326: The signal man assisting the crane operator uses one hand to give any motion signal and places the other hand motionless in front of the hand giving the motion signal. This is the signal to __________.
Y a. move slowly N b. increase speed N c. proceed with caution N d. stop 3520: A situation has occurred where it becomes necessary for you to be towed. What action should be taken to prevent your vessel from yawing?
N a. Shift weight to the bow N b. Shift weight to the center of the boat Y c. Shift weight to the stern N d. Throw excess weight overboard 3521: Once a towline is connected between the towing vessel and the disabled vessel, the towing vessel should __________.
N a. not exceed bare steerageway during the transit N b. take a strain as soon as you can to control the tow Y c. come up to speed very slowly and maintain a "safe speed" N d. come up to speed quickly, then cut back power considerably to ease the strain 4013: What is the minimum size required before a vessel can be documented?
N a. 26 feet; end-to-end over the deck excluding sheer N b. 100 gross tons Y c. 5 net tons N d. 26 feet between perpendiculars 4063: The knot at the end of the heaving line used to pass the towing hawser is called a __________.
Y a. monkey's fist N b. ball or baseball knot N c. heaving knot N d. three strand Turk's head 4121: The lashings used on Ro-Ro vessels should be capable of withstanding the forces of __________.
N a. rolling N b. pitching N c. heaving Y d. All of the above 4126: Which variable factor affects the initial lashing requirements aboard Ro-Ro vessels?
Y a. Number, position and angle of lashings N b. Vessel's draft N c. Port of origin N d. ABS requirements 4440: You are standing the wheelwatch when you hear the cry, "Man overboard, starboard side". You should instinctively __________.
N a. give full left rudder N b. throw a life ring to mark the spot N c. put the rudder amidships Y d. give full right rudder