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.
23: Your ship is sinking rapidly. A container containing an inflatable liferaft has bobbed to the surface upon functioning of the hydrostatic release. Which action should you take?
N a. Cut the painter line so it will not pull the liferaft container down. N b. Swim away from the container so you will not be in danger as it goes down. Y c. Take no action because the painter will cause the liferaft to inflate and open the container. N d. Manually open the container and inflate the liferaft with the hand pump. 37: What is the generally accepted method of determining whether the atmosphere within a cargo tank is explosive, too rich, or too lean to support combustion?
N a. Use the open flame test on a small sample that has been taken from the tank. N b. Send a gas sample ashore for laboratory analysis. N c. Enter the tank with an oxygen analyzer. Y d. Use an explosimeter. 104: In the International Code of Signals, the code signal meaning "I require immediate assistance" is __________.
N a. AE Y b. CB N c. DX N d. CP 136: Which item is NOT required to be marked with the vessel's name?
Y a. Hand-portable fire extinguisher N b. Life preserver N c. Immersion suit N d. Lifeboat oar 292: High-velocity fog __________.
N a. is a finer, more diffuse water spray than low-velocity fog N b. requires that the water pressure be no greater than 60 psi N c. produces an effective fog pattern no more than 6 feet beyond the nozzle Y d. extinguishes a fire by absorbing heat and reducing the supply of oxygen 300: In the small passenger vessel regulations a coastwise route is defined as one that is __________.
N a. not more than 50 statute miles from shore in the Gulf of Mexico N b. on ocean waters more than 200 nautical miles from shore in the Gulf of Alaska N c. not more than 20 statute miles from the nearest safe harbor in the Pacific Ocean Y d. not more than 20 nautical miles offshore in the ocean 305: It is generally NOT allowed to clean up an oil spill by using __________.
N a. a boom N b. suction equipment Y c. chemical agents N d. skimmers 346: The supply of carbon dioxide used in the fixed extinguishing system aboard a cargo vessel MUST be at least sufficient for __________.
N a. all the spaces of a vessel N b. all cargo spaces N c. the engine room and largest cargo space Y d. the space requiring the largest amount 713: Preventer bars are fitted on lifeboat releasing gear to prevent __________.
N a. the falls from unhooking if the releasing gear is operated accidentally N b. operation of the release lever until the boat is waterborne N c. the falls from rehooking after they have been released Y d. accidental unhooking when the falls become slack 968: Which condition is necessary for a substance to burn?
N a. The temperature of the substance must be equal to or above its fire point. N b. The air must contain oxygen in sufficient quantity. N c. The mixture of vapors with air must be within the "explosive range." Y d. All of the above 1031: What is the major function of the deck water seal in an inert gas system?
N a. Relieves excessive pressures from the system. Y b. Isolates hazardous areas from nonhazardous areas. N c. Prevents the flow of inert gas into closed or isolated tanks. N d. Removes any leftover water or soot after the gas has been scrubbed. 1096: What is the minimum number of ring life buoys required on board a 275-foot cargo vessel engaged in coastwise trade, under the alternatives for cargo vessels in a specified service?
Y a. 6 N b. 8 N c. 12 N d. 14 1117: Production of mechanical foam by a portable in-line foam proportioner __________.
N a. increases the size of foam bubbles formed N b. increases the rate of foam production N c. improves the extinguishing properties of foam Y d. gives the nozzleman more freedom of movement, since it can be placed anywhere in the hose line 1118: The volatility of a flammable liquid is indicated by its __________.
N a. ignition temperature Y b. flash point N c. flammable range N d. conversion index 1222: After each reading of an oxygen indicator, the instrument should be purged with __________.
N a. CO2 Y b. fresh air N c. the tested compartment's air N d. water 1381: Large volumes of carbon dioxide are safe and effective for fighting fires in enclosed spaces, such as in a pumproom, provided that the __________.
N a. persons in the space wear gas masks N b. persons in the space wear damp cloths over their mouths and nostrils Y c. ventilation system is secured and all persons leave the space N d. ventilation system is kept operating 1557: When a sea anchor for a lifeboat is properly rigged, it will __________.
N a. completely stop the lifeboat from drifting Y b. help to prevent broaching N c. prevent the lifeboat from pitching N d. None of the above 1628: You are running before a rough sea and a strong wind. Your sailing vessel is yawing. If the wind should catch the mainsail on the reverse side you will __________.
N a. broach N b. tack Y c. jibe N d. go in irons 1705: How does an inert gas system on a tanker function to prevent explosions in cargo tanks?
N a. De-energizes the "charged mist" effect. N b. Maintains a positive pressure on the vent header to cool the flammable vapors. N c. Inert gas filters out the flammable vapors from the cargo tank spaces. Y d. Inert gas dilutes the flammable vapor and air concentrations to keep them below the lower explosive limit. 1832: For GMDSS, when may a compulsory vessel not be allowed to leave port?
N a. When the vessel is in an overloaded condition N b. When the vessel has arranged for both duplication of equipment AND shore-based maintenance Y c. When the vessel has replaced a required piece of GMDSS-related equipment but its performance has not been verified or logged N d. When the vessel is carrying only two licensed GMDSS Radio Operators and is capable of performing all required functions 1876: A sailing vessel with the wind coming from 140° relative would be __________.
N a. close hauled on the starboard tack N b. close hauled on the port tack Y c. on a broad reach N d. running before the wind 1958: You have 710 tons of below deck tonnage. There is no liquid mud aboard. If you have 150 tons of cargo above deck with a VCG above the deck of 3.1 feet, what is the maximum allowed VCG of the remainder of the deck cargo that is permitted? (See illustration D036DG, stability letter for M.V. Hudson) (D036DG )
N a. 1.84 feet N b. 2.13 feet N c. 2.43 feet Y d. 2.78 feet 1986: Which statement is TRUE?
N a. You need not keep a record of ground garbage dumped into the sea more than 25 miles offshore. Y b. You must keep a record of garbage discharged in port to a shore facility. N c. You need not keep a record of garbage incinerated on the ship. N d. You must keep a record of the approximate weight of the garbage dumped. 2020: Free communication will adversely affect transverse stability only when the flooded space is __________.
Y a. off-center N b. on the centerline N c. completely flooded N d. open to the sea above and below the waterline 2040: You have 360 tons of below deck tonnage and 145 tons of above deck cargo on board. You must load 220 tons of liquid mud below deck. How much more deck cargo can you load? (See illustration D036DG, stability letter for M.V. Hudson.) (D036DG )
N a. 22 tons N b. 48 tons Y c. 94 tons N d. 239 tons 2114: You have hand launched an inflatable liferaft. What should be one of your FIRST actions after all persons have boarded the liferaft?
N a. Open the equipment pack. N b. Inflate the liferaft floor. N c. Decide on food and water rations. Y d. Cut the sea painter and clear the vessel. 2146: Aboard damaged vessels, the MOST important consideration is preserving __________.
N a. bilge pumping capacity Y b. reserve buoyancy N c. level attitude N d. instability 2274: A virtual rise in the center of gravity may be caused by __________.
N a. filling a partially filled tank Y b. using an on board crane to lift a freely swinging heavy object N c. emptying a partially filled tank N d. transferring ballast from the forepeak to the after peak 2296: Regulations require that cargo pumps in tank vessels carrying grade D liquid cargo shall be isolated from sources of vapor ignition by __________.
N a. cofferdams Y b. gastight bulkheads N c. passageways or living quarters N d. general cargo spaces 2470: According to the Chemical Data Guide, propylene oxide is assigned a health hazard rating of 3,2,2. The last digit "2" of the rating means __________.
N a. chemical vapors will cause a slight smarting of the eyes or respiratory system if present in high concentrations N b. the chemical contains fairly severe skin irritants, causing second- and third-degree burns after a few minutes contact Y c. the chemical poison presents some hazard if it enters the body and typically has threshold limits of 100 to 500 ppm N d. the chemical is severely hazardous, usually having threshold limits below 10 ppm 2594: Use the floodable length curve in Section 1, the blue pages, of the Stability Data Reference Book. If the curve represents 45 percent permeability and number 3 hold floods, the vessel will sink if the permeability exceeds what percent?
N a. 64 N b. 68 N c. 72 Y d. 78 2642: When properly set and drawing, a fore-and-aft sail has a cross-section that __________.
N a. is a uniform curve Y b. is a curve with more curve at the luff N c. is a curve with more curve at the leach N d. approximates a straight line 2795: The true mean draft of a MODU is the draft __________.
N a. midway between drafts forward and aft Y b. at the center of flotation N c. at the load line N d. at the center of buoyancy 2947: A semisubmersible displacing 700,000 cubic feet while floating in sea water (64 pounds per cubic foot) weighs __________.
N a. 8,929 long tons N b. 19,509 long tons Y c. 20,000 long tons N d. 24,500 long tons 2970: An immersion suit must be equipped with a/an __________.
N a. air bottle for breathing N b. orange smoke canister Y c. whistle, light and retroreflective material N d. sea dye marker 2975: A quick and rapid motion of a MODU in a seaway is an indication of a(n) __________.
Y a. large GM N b. high center of gravity N c. excessive free surface N d. small GZ 3016: Hand held red flares expire 42 months from the date of manufacture. Floating orange smoke distress signals expire after how many months?
N a. 18 months N b. 24 months Y c. 42 months N d. 60 months 3017: A semisubmersible which flops between forward and aft trim angles is likely to have __________.
N a. an off-center TCG N b. LCG greater than level-vessel LCB N c. KMT greater than KML Y d. KML less than KGL 3088: Using a sea anchor with the survival craft will __________.
Y a. reduce your drift rate N b. keep the survival craft from turning over N c. aid in recovering the survival craft N d. increase your visibility 3359: You are making tow. A loaded, open-hopper barge with independent tanks has placards, with alternating red and white quadrants, located at each side and end. You inspect the barge and find slight traces of water in the wing voids due to condensation. What should you do?
N a. Refuse to accept the barge until all wing voids are dry. N b. Accept the barge and when weather conditions permit run with the wing voids open to ventilate the spaces. Y c. Accept the barge and periodically check the wing voids. N d. Return the barge to the fleet and depart without the barge. 3386: While proceeding towards a distress site you hear the message PRU-DONCE over the radiotelephone. Which action should you take?
N a. Advise the sender of your course, speed, position, and ETA at the distress site. N b. Resume base course and speed because the distress is terminated. N c. Shift your radio guard to the working frequency that will be indicated in the message. Y d. Use that frequency only for restricted working communications. 3390: Non-required lifesaving equipment carried as additional equipment aboard small passenger vessels __________.
N a. must be removed when carrying passengers Y b. must be approved by the Commandant N c. may be substituted for not more than 5% of the required lifejackets N d. may be carried regardless of approval or condition, if in excess of required lifesaving equipment 3661: Under ideal conditions, the DEEP DRILLER can pick up and place pipe in the rack at a rate of about __________.
N a. 600 feet per hour N b. 800 feet per hour Y c. 1,000 feet per hour N d. 1,200 feet per hour 3691: While drilling loaded as shown in Sample Load Form #4 (Drilling), the DEEP DRILLER suffers an unexpected but slowly increasing port and forward inclination. The wind and waves are light. This inclination could have been caused by __________.
N a. the failure of mooring lines 5 and 6 N b. the drilling crew dumping the mud N c. the drill string breaking Y d. ballast tanks equalizing into tank 1P 4061: In the DEEP DRILLER, TCG is obtained from the sum of the transverse moments by __________.
N a. adding the free surface correction N b. subtracting the free surface correction N c. multiplying by displacement Y d. dividing by displacement 4105: The DEEP DRILLER is loaded as shown in the Sample Load Form #2 (Ballasting to Survival). What is the shift in LCG if 100.76 long tons of ballast are added to Ballast Tank #8S to replace the discharge of all bulk materials?
Y a. 0.06 foot aft N b. 0.14 foot aft N c. 0.27 foot aft N d. 0.40 foot aft 4725: The COASTAL DRILLER is loaded as shown in Sample Load Form #3 (Rig Move). What would be the new sum of vertical moments for the liquid variables if the entire contents of tank #20 are transferred to tank #13?
N a. 2,365 ft-kips Y b. 2,244 ft-kips N c. 2,195 ft-kips N d. 170 ft-kips 4787: The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). How much more variable load in kips can be placed on the unit if winds increase to greater than 70 knots?
Y a. 0 kips N b. 200 kips N c. 600 kips N d. 1,000 kips 5308: Your drafts are: FWD 17'-09", AFT 21'-03". What is the KM based on the tables in the blue pages of the Stability Data Reference Book?
Y a. 25.7 feet N b. 26.0 feet N c. 26.4 feet N d. 26.8 feet 5545: When a combination chain and wire rope mooring line is used, the chain is deployed __________.
Y a. at the anchor end of the line N b. at the wildcat end of the line N c. midway between the anchor and the wildcat N d. through the anchor buoy 5737: Given the same water depth and line tension, the holding power of a 19 pound/foot wire rope mooring system in comparison to the holding power of a 90 pound/foot chain mooring system will be __________.
Y a. weaker N b. equal N c. greater N d. indeterminable 5752: The SS AMERICAN MARINER is ready to sail with the load shown. Use the white pages of The Stability Data Reference Book to determine the available GM. ST-0184
N a. Available GM 2.8 ft N b. Available GM 3.2 ft Y c. Available GM 3.5 ft N d. Available GM 3.8 ft 5752: The SS AMERICAN MARINER is ready to sail with the load shown. Use the white pages of The Stability Data Reference Book to determine the available GM. ST-0184
N a. Available GM 2.8 ft N b. Available GM 3.2 ft Y c. Available GM 3.5 ft N d. Available GM 3.8 ft 5893: The effect of ocean currents is usually more evident on a rig being towed than on a tug navigating independently because the __________.
Y a. speed of the tow is less N b. tow line catches the current N c. current causes yawing N d. current will offset the rig 6911: According to regulations, a Master or person in charge of a MODU is required to submit a report of a loss of life __________.
N a. only when it happens while underway N b. to the next of kin Y c. to the nearest OCMI N d. to the nearest coroner 7601: At all angles of inclination, the true measure of a vessel's stability is the __________.
N a. metacentric height N b. displacement Y c. righting moment N d. inclining moment 7841: In a combination chain and wire rope mooring system, the anchor chain is deployed at the anchor end of the line to __________.
N a. increase fatigue life of the system N b. reduce the time to retrieve the line Y c. increase the holding power N d. reduce the catenary 8987: The tendency of a vessel to return to its original trim after being inclined by an external force is __________.
N a. equilibrium N b. buoyancy N c. transverse stability Y d. longitudinal stability 8994: Two types of anchor shackles which are currently available are __________.
N a. U-Type and posilok shackles N b. C-Type and wedge shackles Y c. D-Type and bow shackles N d. wedge and kenter shackles 9483: A tank which is NOT completely full or empty is called __________.
N a. pressed Y b. slack N c. inertial N d. elemental