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.
6: Which statement about a tunnel bow thruster is TRUE?
Y a. It provides lateral control without affecting headway. N b. It is fully effective at speeds up to about six knots. N c. It can be used to slow the ship in addition to backing down. N d. It will allow you to hold a position when the current is from astern. 80: You are on a cargo vessel carrying portable tanks of dangerous cargoes in bulk. Which statement is TRUE?
N a. If the tanks are pumped out while remaining on board, each hose connection must have a minimum of three bolts. N b. If the tanks are off loaded, no more than two tanks may be lifted together in a hoist. N c. When transferring sulfuric acid, you must display a red flag by day whether at anchor or moored. Y d. All electrical equipment within 10 feet horizontally must be explosion proof or intrinsically safe. 104: You are on watch at sea at night when a fire breaks out in #3 hold just forward of the bridge. You would NOT __________.
N a. call the Master Y b. proceed to the space and inspect the extent of the fire N c. shut down the cargo hold ventilation N d. sound the fire alarm signal to roust out all hands 181: Your vessel is on an extended foreign voyage. Several vacancies have occurred in your unlicensed crew through sickness and repatriation. Which statement is correct?
N a. Aliens may be employed except that all U.S. flag vessels must maintain no less than 90% U.S. citizens in the crew. Y b. Qualified aliens may be employed to fill the vacancies. N c. Seamen to fill vacancies must be flown from U.S. to join the vessel in the foreign port. N d. Vacancies can only be filled by U.S. citizens with valid Merchant Mariner's Documents. 235: Which ending is NOT acceptable in a wire rope that is free to rotate when hoisting?
N a. Poured socket Y b. Liverpool eye splice N c. Eye formed with a pressure clamped sleeve N d. Eye formed by clips 312: If you are bunkering and you close off one tank in the line of tanks being filled, the rate of flow to other open tanks on the same line will __________.
Y a. increase N b. decrease N c. stop N d. remain constant 345: What does the helm command "shift the rudder" mean?
N a. Put the rudder amidships and hold the heading steady as she goes. Y b. Put the rudder over to the opposite side, the same number of degrees it is now. N c. Shift the rudder control to the alternate steering method. N d. Stop the swing of the ship. 374: Holes in the bulwark, which allow deck water to drain into the sea, are __________.
N a. doggers N b. fidleys Y c. freeing ports N d. swash ports 433: When a tow is trimmed by the stern it is said to __________.
N a. hog N b. sag Y c. drag N d. list 446: A twin-screw vessel can clear the inboard propeller and maneuver off a pier best by holding a(n) __________.
N a. forward spring line and going slow ahead on the inboard engine N b. after spring line and going slow astern on the outboard engine N c. forward spring line and going slow ahead on both engines Y d. forward spring line and going slow ahead on the outboard engine 464: The static bollard pull of a tug is measured in tons and consists of the brake horsepower of the tug's engine divided by 100 and multiplied by a factor of __________.
N a. 0.5 Y b. 1.3 N c. 3 N d. 10 465: Which structural members improve a towing vessel's chance of surviving punctured shell plating?
N a. Stringers N b. Longitudinals Y c. Transverse watertight bulkheads N d. The rake 615: When a wedge of water builds up between the head of the barge and the bank it is referred to as __________.
Y a. bank cushion N b. bank suction N c. bow wave N d. veering cushion 674: Stuffer-braid rope has __________.
Y a. a yarn core N b. no core N c. three strands N d. 12 threads 742: Lighter longitudinal stiffening frames on the vessel's side plating are called __________.
Y a. stringers N b. side frames N c. side stiffeners N d. intercostals 770: The ratio of the height of a vessel's rudder to its width is referred to as the __________.
Y a. aspect ratio N b. constriction ratio N c. rudder ratio N d. steering ratio 796: When you enter shallow water, you would expect your rudder response to __________.
Y a. be sluggish and your speed to decrease N b. be sluggish and your speed to increase N c. improve and your speed to decrease N d. improve and your speed to increase 842: When can the US citizenship requirement for the Master of a US-flag uninspected towing vessel be waived?
N a. When US-licensed Masters are not readily available N b. When it costs too much to hire a US-licensed Master N c. When the towing vessel operates shoreward of the boundary line Y d. Never, under any circumstances 859: To insure proper seating when closing a valve on a tank, the valve should be __________.
N a. closed against the stop and the locking pin inserted Y b. closed, opened a half turn, and then closed again N c. set up as tight as possible by hand N d. set up tight using a valve wrench 926: Usually the most gentle way of riding out a severe storm on a larger vessel is __________.
N a. head on at slow speeds N b. hove to Y c. running before the seas N d. to rig a sea anchor 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 945: After having been pulled aloft in a bosun's chair on a mast, you must now make yourself fast in the chair prior to painting the mast. You should first __________.
N a. have the sailor on deck make the hauling part fast to a cleat on the mast N b. make the tail of the line leading from the becket bend fast to a padeye on the mast Y c. seize the hauling part and the standing part firmly in one hand to support your weight N d. frap yourself to the mast to take the strain off the hauling part 1115: The proper way to correct a mistake in the logbook is to __________.
N a. draw several lines through the entry, rewrite, and initial the correction Y b. draw a line through the entry, rewrite, and initial the correction N c. completely black out the entry, rewrite, and initial the correction N d. erase the entry and rewrite 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 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 1178: A shipper of cargo aboard your vessel offers a letter of indemnity for the cargo. This is done in order to obtain a(n) __________.
Y a. Clean Bill of Lading N b. Order Bill of Lading N c. Straight Bill of Lading N d. Through Bill of Lading 1299: Which part of a conventional cargo gear rig provides for vertical control and positioning of a boom?
N a. Cargo whip N b. Gooseneck fitting N c. Spider band Y d. Topping lift 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 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 1323: "Ease the rudder" means to __________.
Y a. decrease the rudder angle N b. move the rudder slowly in the direction of the most recent rudder command N c. bring the rudder amidships N d. steer the course which is your present heading 1400: The half-breadth plan is __________.
N a. an endwise view of the ship's molded form N b. a plan with the forebody to right of centerline and afterbody to the left of centerline N c. a longitudinal side elevation Y d. usually drawn for the port side only 1441: Dead freight is the charge for the __________.
N a. carriage of demise cargo N b. cost of transshipment of over-carried cargo N c. difference in the amount of cargo loaded and the amount of cargo discharged Y d. difference in the amount of cargo loaded and the amount of cargo booked, through no fault of the vessel 1517: Which picture represents a timber hitch? (DO30DG )
Y a. E N b. F N c. N N d. U 1550: Keel scantlings of any vessel are greatest amidships because __________.
N a. connections between forebody and afterbody are most crucial Y b. of maximum longitudinal bending moments N c. of severest racking stresses N d. resistance to grounding is at a maximum amidships 1660: The strake on each side of the keel is called a __________.
N a. sheer strake N b. gatewood strake N c. insulation strake Y d. garboard strake 1670: The term "strake" is used in reference to __________.
N a. rudder mountings N b. anchor gear Y c. hull plating N d. vessel framing 1672: You are to load a consignment of lumber. Each piece measures 2-inches thick, 10-inches wide and 16-feet long. There are 30,000 pieces in the shipment. How many board feet would be listed on the Bill of Lading?
Y a. 800,000 N b. 1,200,000 N c. 1,440,000 N d. 14,400,000 1694: A "whipping" is __________.
N a. a messenger N b. a stopper for nylon line N c. a U-bolt for securing a cargo whip to the winch drum Y d. turns of twine around a rope end 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. 1863: If a mooring line should part while you are tying up at a dock, you should make a temporary eye by tying a __________.
N a. becket bend N b. clove hitch Y c. bowline N d. square knot 2034: You are ordering a new block to use with a 3-inch circumference manila line. Which represents a proper size block for this line?
N a. 6-inch cheek, 4-inch sheave N b. 8-inch cheek, any size sheave Y c. 9-inch cheek, 6-inch sheave N d. At least a 12-inch sheave 2117: When a vessel is involved in a casualty. The cost of property damage includes the __________.
Y a. cost of labor and material to restore the vessel to the service condition which existed before the casualty N b. loss of revenue while the vessel is being repaired, up to a maximum of $50,000 N c. damage claims awarded to individuals or companies involved in the casualty N d. All of the above 2130: In a racetrack turn, to recover a man overboard, the vessel is steadied for the SECOND time after a turn of how many degrees from the original heading?
N a. 60° N b. 135° N c. 180° Y d. 360° 2143: Your vessel was damaged and initially assumed a significant list and trim; however, further increase has been slow. Based on this data, what should you expect?
N a. The slowing is only temporary and the vessel will probably suddenly capsize or plunge from loss of stability due to change in the waterplane area. Y b. The vessel can probably be saved if further flooding can be stopped. N c. The vessel will continue to slowly list and/or trim due to the free surface effect and free communication effect. N d. The vessel will suddenly flop to the same or greater angle of list on the other side and may capsize. 2390: Determine the weight of a rectangular piece of 20.4 lb. steel measuring 4 feet by 6 feet.
N a. 204.0 lbs. Y b. 489.6 lbs. N c. 734.4 lbs. N d. 979.2 lbs. 2516: Which statement about the dangerous cargo manifest, carried on a ship, is TRUE?
N a. The manifest must be made up by the Master or other designated ship's officer. N b. Shipments of hazardous and non-hazardous cargo may be listed on the manifest if they are destined for the same consignee. Y c. The manifest must be kept in a designated holder on or near the bridge. N d. The type of label(s) required for each cargo must be indicated. 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 2791: What is the period of validity of a Cargo Ship Safety Equipment Certificate?
N a. 72 months Y b. 60 months N c. 48 months N d. 42 months 2795: The York-Antwerp Rules relate to the __________.
N a. minimum required number of officers and crew Y b. settlement of general average claims N c. ship owner's responsibilities to provide a well-found vessel in a charter party N d. navigation regulations that apply in the English Channel 2892: What is LEAST likely to be used to strip a cargo tank?
Y a. Centrifugal pump N b. Eductor N c. Rotary pump N d. Reciprocating pump 3047: When backing down with sternway, the pivot point of a vessel is __________.
Y a. about one-quarter of the vessel's length from the stern N b. at the bow N c. about one-third of the vessel's length from the bow N d. aft of the propellers 3100: A holder of a license as Master of towing vessels may work each 24 hours for a period not to exceed __________.
N a. 6 hours Y b. 12 hours N c. 18 hours N d. 24 hours 3440: The circular steel structure installed around the propeller of a towboat is the __________.
Y a. nozzle N b. shroud N c. strut N d. hood 3541: 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. N b. Pyridine and diisopropylamine may be carried in tanks having a common header vent. N c. Carbon disulfide must be separated from pyridine by two barriers (cofferdams, voids, empty tanks, etc.). Y d. A tank of pyridine may be used to separate a tank of carbon disulfide from a tank of diisopropylamine. 3565: The safety stopper that prevents the anchor cable from running free if the cable jumps the wildcat is the __________.
Y a. riding pawl N b. devil's claw N c. buckler plate N d. spill pipe 3662: Unless extremely flexible wire rope is used, the sheave diameter should always be as large as possible, but should never be less than __________.
Y a. 20 times the rope diameter N b. 10 times the rope diameter N c. 2 times the rope diameter N d. the rope diameter 4228: Which of the following is/are the component(s) of a twin crane set as shown? (D047DG )
N a. Boom assembly N b. Hook block assembly N c. Operator's cab Y d. All of the above 4231: The 30 ton capacity pedestal cranes shown in the illustration can lift a maximum weight of how many tons in the single mode? (D047DG )
N a. 15 tons Y b. 30 tons N c. 60 tons N d. 120 tons 4244: What is meant by the term "luffing the boom" of a crane?
N a. Stopping the boom Y b. Topping or lowering the boom N c. Moving the boom left or right N d. All of the above 4247: Which of the following statements is TRUE regarding crane operations?
N a. Radio communications allow the crane operator to disregard the use of hand signals. Y b. The crane operators and signalman must be familiar with the correct hand signals. N c. The forward cranes can be operated from the bridge. N d. The aft cranes can be operated from the aft steering station.