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.
26: The pivoting point of a fully loaded vessel with normal trim proceeding ahead at sea speed is __________.
N a. right at the bow Y b. one-third the length of the vessel from the bow N c. one-half the length of the vessel from the bow N d. two-thirds the length of the vessel from the bow 53: The objective of shoring a damaged bulkhead is to __________.
N a. force the warped, bulged, or deformed sections back into place Y b. support and hold the area in the damaged position N c. withstand subsequent additional damage N d. make a watertight seal at the damaged area 71: You are the licensed Master of a 199 GT uninspected towing vessel making a 500 mile coastwise trip. You carry a deck crew of six (6). Which statement is TRUE?
N a. There must be 3 separate watches stood. N b. There must be at least 5 able seamen among the deck crew. N c. Only the able seamen require Merchant Mariner's Documents. Y d. None of the above 95: You should keep clear of __________.
Y a. any line under a strain N b. lines that are paying out N c. lines that are coiled down only N d. None of the above are correct 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 129: Which knot is suitable for hoisting an unconscious person?
N a. Bowline on a bight N b. Fisherman's loop Y c. French bowline N d. Spider hitch 186: The pivoting point of a vessel going ahead is __________.
N a. at the hawsepipe Y b. about one-third of the vessel's length from the bow N c. about two-thirds of the vessel's length from the bow N d. near the stern 192: The mooring line labeled "H" is called a(n) __________. (DO44DG )
Y a. offshore bow line N b. onshore bow line N c. offshore spring line N d. forward breast line 212: Your vessel is port side to a pier with a spring line led aft from the bow. In calm weather, putting the engines ahead with the rudder hard left should bring __________.
Y a. the bow in and the stern out N b. both the bow and stern in N c. the bow out and the stern in N d. both the bow and stern out 217: The holding capability of an anchor is primarily determined by the __________.
N a. shape of the anchor N b. stowage of the anchor on board Y c. anchor's ability to dig in N d. size of the vessel and its draft 305: What is considered a Serious Marine Incident?
N a. an allision that results in $500 damage to a boat dock Y b. an injury to a crewmember, passenger, or other person which requires professional medical treatment beyond first aid N c. grounding of a vessel on a sandbar that does not result in injuries and/or any damage to the vessel N d. None of the above 519: What is NOT a precaution to be taken when topping off?
N a. Reduce the loading rate. Y b. Notify the engine room of the procedure. N c. Maintain communications with the dock man. N d. Give the operation your undivided attention. 538: Using the graph shown, if the dry bulb temperature is 80°F (27°C) and the wet bulb temperature is 70°F (21°C), what is the relative humidity in a cargo hold? (D008DG )
N a. 45% N b. 52% Y c. 58% N d. 65% 636: The use of an anchor to assist in turning in restricted waters is __________.
N a. a last resort Y b. good seamanship N c. the sign of a novice shiphandler N d. to be used only with a single-screw vessel 658: When carrying a full or nearly full load of bulk ore in a general cargo type vessel which has engine spaces amidships, the cargo in each hold should be trimmed so that the bulk of the cargo lies __________.
N a. along the centerline N b. toward the forward bulkhead of the forward holds and toward the after bulkhead of the after holds Y c. toward the after bulkhead of the forward holds and the forward bulkhead of the after holds N d. toward the after bulkhead of all holds 755: When underway with a tow, you are required to notify the Coast Guard in which casualty situation?
Y a. Accidental stranding or grounding N b. An injury requiring first aid treatment N c. Loss of bridge-to-bridge radio capability N d. Damage to property amounting to $12,500 775: You are on a large merchant vessel entering a U.S. port. There is a Pilot onboard and he has the conn. Which statement is TRUE?
N a. The Pilot becomes solely responsible for the safe navigation of the vessel only if the Master relinquishes the conn. N b. The Pilot is solely responsible for the internal working of the ship. N c. The Pilot is solely responsible for the safe maneuvering of the ship only if he is required to be on board by law. Y d. The Master is responsible for the safe navigation of the ship and the Pilot is employed for his local knowledge. 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 879: Centrifugal pumps have what advantage(s) over reciprocating pumps?
N a. They are less expensive. N b. They are smaller for equivalent pumping ability. N c. They pump more cargo in less time. Y d. All of the above 1034: You are the licensed operator of a 100 GT towing vessel sailing coastwise. What percentage of the deck crew must be able to understand the language commonly used onboard the vessel?
N a. 100% Y b. 75% N c. 65% N d. 50% 1079: The system of valves and cargo lines in the bottom piping network of a tanker 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 1106: A vessel is underway with a work stage rigged over the side. A seaman may work on the stage, but only when __________.
N a. wearing a life jacket N b. wearing a safety harness secured to the stage N c. wearing both a life jacket and a safety harness secured to the stage Y d. the vessel is not making way 1234: Which type of line will stretch the most when under strain?
N a. Polypropylene N b. Dacron Y c. Nylon N d. Manila 1277: Ice concentration is measured in OKTAs. What percentage of the sea surface is ice-covered with 4 OKTAs concentration?
N a. 25% N b. 40% Y c. 50% N d. 67% 1336: When picking up your mooring at the buoy, the correct method is to __________.
N a. approach the buoy with the wind and current astern Y b. approach the buoy with the wind and current ahead N c. approach the buoy with wind and sea abeam N d. stop upwind and up current and drift down on the buoy 1482: The two courses of action if the underwater hull is severely damaged are to plug the openings or to __________.
Y a. establish and maintain flooding boundaries N b. dewater the compartment N c. secure power to the compartment N d. ballast to maintain even keel 1496: The purpose of a devil's claw is to __________.
Y a. act as a chain stopper N b. prevent the windlass from engaging N c. prevent the chain from fouling on deck N d. control the wildcat 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 1548: What could be used as fairleads on a towed vessel?
N a. Chocks N b. Double bitts N c. Roller chocks Y d. All of the above 1680: In vessel construction, the garboard strake is __________.
Y a. located next to and parallel to the keel N b. located next to and parallel to the gunwale N c. another term for the bilge keel N d. another term for the rub rail 1696: Mooring with two bow anchors has which major advantage over anchoring with one bow anchor?
N a. The vessel will not reverse direction in a tidal current. Y b. The radius of the vessel's swing will be shortened. N c. A mooring approach may be made from any direction. N d. The vessel will not swing with a change in wind. 1733: Separating both blocks of a tackle to prepare it for reuse is called __________.
N a. chockablocking N b. out-hauling Y c. over-hauling N d. two-blocking 1742: You should conduct a sector search under which of the following circumstances?
Y a. The search target is sighted and then lost. N b. More than one vessel is available for a search. N c. The search object is a target that will be readily detected by radar. N d. An aircraft is available to assist a surface vessel. 1796: Which safety check(s) should be made before letting go the anchor?
N a. See that the anchor is clear of obstructions. N b. See that the chain is all clear. N c. See that the wildcat is disengaged. Y d. All of the above 1821: While towing, what is the principal danger in attempting to swing a barge on a short hawser in order to slow the barge's speed?
N a. The barge may capsize from the sharp turn. Y b. The barge may swing too quickly and run over the tug. N c. Free surface effect of liquid inside the barge may rupture the barge bulkheads when turning too quickly. N d. Dangerous wakes may result from the swinging barge and capsize the tug. 1990: Upon receipt of a distress message, a merchant vessel is bound to proceed to the scene of the distress. Under which of the following cases would this NOT be true?
N a. The vessel would arrive at the distress scene more than 36 hours after the receipt of the initial distress message. N b. There are vessels closer to the distress scene that are proceeding to assist. Y c. The Master of the vessel in distress has requisitioned another vessel, and that vessel has accepted the requisition. N d. You are on a tank vessel and the distress involves a major fire on board the other vessel. 1995: The single turn method of returning to a man overboard should be used ONLY if __________.
N a. the man is reported missing rather than immediately seen as he falls overboard Y b. the vessel is very maneuverable N c. the conning officer is inexperienced N d. a boat will be used to recover the man 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 2035: A seaman signed on articles on 16 January 1987 and signed off on 2 March 1987. How should you enter this under the Time of Service column in the articles?
N a. 1 Month 18 Days N b. 1 Month 16 Days N c. 2 Months Y d. 46 Days 2064: While underway in thick fog you are on watch and hear the cry "man overboard". Which type of maneuver should you make?
N a. figure eight turn N b. Round turn N c. Racetrack turn Y d. Williamson turn 2100: The primary purpose of a load line is to establish required __________.
Y a. minimum freeboard N b. GM N c. transverse stability N d. fresh water allowances 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 2167: Which statement concerning sweat damage in containers is TRUE?
N a. Sweat damage in containers is unusual due to the small enclosed volume of air. N b. In general, containerized hygroscopic cargoes are the only ones subject to sweat damage. Y c. Containers should be ventilated, dehumidified, or the contents physically protected against sweat damage. N d. Sweat damage is not a problem except in insulated and refrigerated containers. 2185: You are using tackle number 7 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. 200 lbs. N b. 150 lbs. N c. 110 lbs. Y d. 55 lbs. 2204: 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. Blot out the error completely and rewrite the entry correctly. N b. Carefully and neatly erase the entry and rewrite it correctly. Y c. Cross out the error with a single line, write the correct entry, and initial it. N d. Remove this page of the log book and rewrite all entries on a clean page. 2451: A safety shackle is identified by its __________.
N a. shape Y b. pin N c. certification stamp N d. color code 2539: The distance between rivets in a row is known as the __________.
N a. arm Y b. pitch N c. gage N d. rivet distance 2542: When loading containers into the cell guides in the hold of a container ship, which statement is TRUE?
Y a. No further securing is usually required. N b. Containers must have vertical lashings if they do not have twist lock securing. N c. All containers must have vertical and horizontal lashings. N d. The container must be locked into the cell guide. 2553: The key to rescuing a man overboard is __________.
N a. good equipment N b. a dedicated crew Y c. well-conducted drills N d. good communication 2594: Which is NOT an advantage of the flush method of welded shell plating?
N a. Reduces weight N b. Reduces frictional resistance N c. Keeps practically 100% of tensile strength at the joints Y d. Reduces plate stress 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 2817: The command "meet her" means the helmsman should __________.
N a. decrease the rudder angle N b. steer more carefully Y c. use rudder to slow the vessel's swing N d. note the course and steady on that heading 2978: An icebreaker assisting a vessel through an ice field would display a visual signal consisting of the code letter "E" (Echo) to signify that "________________".
Y a. I am altering my course to starboard N b. I am altering my course to port N c. I am operating astern propulsion N d. My vessel is stopped and making no way through the water 3020: The main underdeck pipeline on a tankship is connected to individual tanks by __________.
N a. tank drops N b. line drops N c. crossovers Y d. branch lines 3036: Which statement about ships operating in ice is FALSE?
N a. Light and partly loaded ships should be ballasted as deeply as possible. Y b. In brash-filled channels, operating with a shallow draft forward is most effective. N c. Traditionally, operating ships light in the ice has been effective in the spring. N d. Good searchlights should be available in the event of night navigation with or without icebreaker escort. 3086: Which statement concerning the navigation of a vessel in ice is FALSE?
N a. Anchoring in the presence of ice is not recommended except in an emergency. N b. Towing a vessel through an ice field is not recommended except in an emergency. N c. The "Free and Proceed" system of escorting a beset vessel cuts down on the number of freeing operations. Y d. When anchoring in ice, it is advisable to increase the scope of the chain over what is normally used for non-icing conditions. 3211: With the buttress securing system, containers of different heights must be stowed __________.
N a. on the bottom tier on deck N b. in the hold N c. next to the buttress tower Y d. on the top tier 4164: 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 30 tons and 40 tons, when carried on Ro-Ro vessels?
N a. One N b. Two N c. Three Y d. None of the above 4246: What does "level-luffing" accomplish during crane operations?
N a. It prevents the load from swinging when the boom level is adjusted. N b. Less power is needed when topping the boom with a load on the hook. N c. It maintains the height of the load above the deck. Y d. All of the above