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.
43: If an inflatable liferaft is overturned, it may be righted by __________.
N a. filling the stabilizers on one side with water N b. releasing the CO2 cylinder N c. pushing up from under one end Y d. standing on the inflating cylinder and pulling on the straps on the underside of the raft 66: The galley on your cargo vessel has an area of 2,900 square feet. What will fulfill the requirements for fire protection?
N a. One B-I extinguisher N b. One B-II extinguisher Y c. One B-II and one C-II extinguisher N d. One B-V extinguisher 145: Which statement concerning an accidental oil spill in the navigable waters of the U.S. is TRUE?
N a. The Corps of Engineers is responsible for the clean up of the spill. N b. The Department of Interior is responsible for the clean up of the spill. N c. A warning broadcast must be made by radiotelephone. Y d. The person in charge must report the spill to the Coast Guard. 345: A 100-GT vessel, constructed before July 1,1974, is loading diesel fuel. What is the minimum capacity of the drip pans required for placement under or around each fuel tank vent, overflow, and fill pipe?
N a. 1 gallon Y b. 5 gallons N c. 1 barrel N d. 2 barrels 373: Your vessel is broken down and rolling in heavy seas. You can reduce the possibility of capsizing by __________.
N a. shifting the rudder constantly N b. moving all personnel forward and low N c. moving all personnel aft Y d. rigging a sea anchor 418: Treatment(s) of heat exhaustion consist(s) of __________.
Y a. moving to a shaded area and laying down N b. bathing with rubbing alcohol N c. placing the patient in a tub of cold water N d. All of the above 461: Which statement about transmitting distress messages by radiotelephone is INCORRECT?
Y a. It is advisable to follow a distress message on 2182 kHz by two dashes of 10 to 15 seconds duration. N b. Channel 16 (156.8 MHz) may be used for distress messages. N c. If no answer is received on the designated distress frequencies, repeat the distress call on any frequency available. N d. Distress messages should first be transmitted on 2182 kHz. 574: You are calling another vessel by radiotelephone using the International Code of Signals. He responds with the words "Alpha Sierra". This indicates that __________.
Y a. he cannot accept traffic immediately N b. you should proceed with your message N c. you should send your message in International Code N d. you should send your message in plain language 587: Which vessel is NOT required to have a radiotelephone?
N a. A 34-foot vessel engaged in towing N b. A dredge operating in a channel N c. A vessel of 100 GT carrying 50 passengers for hire Y d. A 12-meter private yacht 609: Which small passenger vessel(s) is/are NOT required to carry a Category 1 406 MHz EPIRB?
N a. A coastwise vessel whose route does not take it more than three miles from shore N b. A vessel operating on lakes, bays, sounds, and rivers N c. A vessel operating within three miles from the coastline of the Great Lakes Y d. All of the above 610: The amount of freeboard which a ship possesses has a tremendous effect on its __________.
N a. initial stability N b. free surface N c. permeability Y d. stability at large angles of inclination 627: Distress flares and smoke signals for small passenger vessels __________.
N a. are not required aboard vessels on runs of less than 30 minutes duration N b. must be Coast Guard approved and stowed in a portable, watertight container N c. must be marked with an expiration date not more than 42 months from the date of manufacture Y d. All of the above 684: The Coast Guard emergency radiotelephone frequency is __________.
N a. 2132 kilohertz Y b. 2182 kilohertz N c. 2670 kilohertz N d. 2750 kilohertz 759: Determine the free surface correction for a fuel oil tank 30 ft. long by 40 ft. wide by 15 ft. deep, with a free surface constant of 3794. The vessel is displacing 7,000 tons in saltwater.
N a. 0.35 foot Y b. 0.54 foot N c. 0.65 foot N d. 1.38 feet 787: To determine which grades of cargo a tank vessel is permitted to carry you should __________.
Y a. refer to the vessel's Certificate of Inspection N b. examine the cargo tanks and fittings N c. ask the terminal supervisor or his representative N d. check the loading order 913: On a vessel of 8,000 tons displacement, compute the reduction in metacentric height due to free surface in a hold having free water in the tank tops. The hold is 40 feet long and 20 feet wide. The reduction in metacentric height is __________.
Y a. 0.1 ft N b. 0.3 ft N c. 0.5 ft N d. 0.9 ft 918: Fires which occur in energized electrical equipment, such as switchboard insulation, are class __________.
N a. A N b. B Y c. C N d. D 1043: Your vessel is damaged and on an even keel. There is no trim. The freeboard is reduced to less than 1 foot. The rolling period is very long, and the vessel is sluggish in returning from a roll. Which action would you take FIRST to improve stability?
Y a. In calm seas lower the lifeboats to the water and keep them alongside. N b. Rig the jumbo boom and use it to jettison heavy deck cargo. N c. Press up a centerline double bottom that is now filled to 15% capacity. N d. Pump out the peak tanks simultaneously. 1434: Halon fire extinguishers are NOT effective when used on which types of fires?
N a. Fires in electrical equipment N b. Flammable oils and greases N c. Class "A" fires in ordinary combustibles Y d. Materials containing their own oxygen 1634: To prevent the spread of fire by convection you should __________.
Y a. close all openings to the area N b. shut off all electrical power N c. remove combustibles from direct exposure N d. cool the bulkhead around the fire 1717: An inert gas system on a tanker should be used to __________.
N a. prevent the generation of flammable or combustible gas in tanks N b. blow out cargo lines to prevent the build up of gas concentrations Y c. dilute tank atmospheres to keep gas concentrations below the lower explosive limit N d. prevent fires in the pumproom by continually displacing flammable vapors 1806: Your vessel displaces 562 tons and measures 121'L x 29'B. You ship a large wave on the after deck. What is the reduction to GM due to free surface before the water drains overboard, if the after deck measures 46'L x 29'B and the weight of the water is 41 tons?
Y a. 4.43 feet N b. 4.61 feet N c. 4.86 feet N d. 5.12 feet 1823: What is the MINIMUM distance a vessel subject to the requirements of Annex V to MARPOL 73/78 must be located from nearest land to legally discharge paper trash?
N a. 5 nautical miles N b. 10 nautical miles Y c. 12 nautical miles N d. 25 nautical miles 1833: Batteries for VHF Survival Craft Transceivers must have sufficient capacity to operate for a minimum of __________.
N a. 4 hours N b. 6 hours Y c. 8 hours N d. 12 hours 1926: A "reaching" course is one in which the wind __________.
N a. comes directly over the bow N b. comes directly over the stern Y c. comes over an area extending from broad on the bow to the quarter N d. has no effect on the vessel 1931: The SS NORTHLAND is loaded to drafts: FWD 17'-03", AFT 19'-03". The KG is 23.6 feet. Use the salmon pages of the Stability Data Reference Book to determine the angle of list if #6 starboard tank is fully loaded with 1624 tons of salt water ballast (VCG is 36.5 feet off the centerline).
N a. 3.0° Y b. 4.4° N c. 6.0° N d. 7.5° 2141: How often is a drill on the use of the line throwing appliance required to be held on a mobile offshore drilling unit?
N a. Once a month N b. Once a year N c. Once a week Y d. Once every three months 2164: Your vessel is damaged, listing to port and on occasion flopping to the same angle to starboard. It has a long, slow, sluggish roll around the angle of list. There is excessive trim by the stern with little freeboard aft. What action should you take FIRST to correct this situation?
N a. Jettison any off-center topside weights to lower GM and correct the list. N b. Pump out any slack after double-bottom tanks to reduce free surface and increase freeboard aft. N c. Pump out the after peak and fill the forepeak to change the trim. Y d. Press up any slack double-bottom tanks forward of the tipping center, then fill the forepeak if empty. 2218: The maximum length allowed between main, transverse bulkheads on a vessel is referred to as the __________.
N a. floodable length N b. factor of subdivision N c. compartment standard Y d. permissible length 2324: How many fire extinguishers, and what type, are required on an unmanned oil barge during transfer operations, if the barge has no cargo pumps aboard?
Y a. One B-II N b. Two B-II N c. One B-V N d. Two A-II 2478: Depending on its concentration, which product(s) can be classified as either grade D or E?
N a. Sulfuric acid Y b. Formaldehyde solutions 37% to 50% N c. 1,1,1-trichloroethane N d. All of the above 2646: How many B-II fire extinguishers must be in the machinery space of a 175-foot long fishing vessel propelled by engines with 3200 brake horsepower?
N a. 2 N b. 3 Y c. 4 N d. 5 2725: The stability of a semisubmersible MODU would be seriously reduced if flooding occurred in the __________.
N a. submerged hulls Y b. column void spaces N c. dry mud tanks N d. ballast tanks 2804: Your vessel's drafts are: FWD 19'-09", AFT 20'-09"; and the KG is 24.6 feet. Use the selected stability curves in the blue pages of the Stability Data Reference Book to determine the remaining righting arm at 15° inclination if the center of gravity is 0.5 foot off the centerline.
Y a. 0.0 feet N b. 0.5 foot N c. 1.2 feet N d. 1.7 feet 2835: A vessel heading NNE is on a course of __________.
Y a. 022.5° N b. 045.0° N c. 067.5° N d. 090.0° 2915: A MODU lists and trims about the __________.
N a. center of gravity N b. center of buoyancy Y c. center of flotation N d. centroid of the underwater volume 2999: The use of portable electrical equipment in the pumproom on tank barges is prohibited unless __________.
N a. the pumproom is gas-free N b. spaces with bulkheads common to the pumproom are either gas-free, inert, filled with water, or contain grade E liquid N c. all other compartments in which flammable vapors and gases may exist are closed and secured Y d. All of the above 3336: Which statement is TRUE concerning gasoline vapors on board a vessel?
Y a. They are heavier than air and will settle in the lowest part of the vessel. N b. They are lighter than air and will settle in the highest part of the vessel. N c. They should be vented into the engine to improve combustion. N d. They should be vented into the wheelhouse. 3371: The DEEP DRILLER at a draft of 60.0 feet discharges 68.94 long tons of ballast. What is the new draft?
N a. 66.0 feet N b. 60.5 feet Y c. 59.5 feet N d. 55.0 feet 3385: A jack-up, 180 feet in length, has the center of flotation at 110 feet aft of frame zero. The draft at the bow is 11.0 feet and the draft at the stern is 13.0 feet. What is the true mean draft?
N a. 11.78 feet N b. 12.00 feet Y c. 12.22 feet N d. 12.78 feet 3660: How should the letter "W" be pronounced when spoken on the radiotelephone?
N a. DUB A U Y b. WISS KEY N c. WI NE N d. WOO LF 3861: Coast Guard Regulations (46 CFR) require that life jackets shall be __________.
N a. provided for each person onboard N b. provided for all personnel of watch N c. readily accessible to persons in the engine room Y d. All of the above 4016: Fire protection regulations apply to those towing vessels __________.
N a. used only for pollution response N b. owned and operated by the US government N c. used only within a barge fleeting area Y d. used only on inland waters 4017: Towing vessel fire protection regulations define a "fixed fire-extinguishing system" to include all of the following EXCEPT a _____________ .
N a. carbon-dioxide system Y b. halon system N c. manually-operated clean-agent system N d. manually-operated water-mist system 4192: Alterations or repairs on inspected small passenger vessels must be done __________.
N a. under the direction of the Officer in Charge, Marine Inspection N b. in accordance with the regulations of Subchapter "S" (Subdivision and Stability) N c. in accordance with regulations in effect when the vessel was contracted for, as long as the repairs are minor Y d. All of the above 4216: You are loading in a port subject to the tropical load line mark and bound for a port subject to the winter load line mark. You will enter the summer zone after steaming four days, and you will enter the winter zone after a total of nine days. You will consume 29 tons of fuel, water, and stores per day. The hydrometer reading at the loading pier is 1.008, and the average TPI is 53. What is the minimum freeboard required at the start of the voyage? (Get Table Data)
N a. 72.5 inches N b. 75.0 inches N c. 77.0 inches Y d. 80.0 inches 4297: The COASTAL DRILLER is in ocean transit in which the winds are not expected to exceed 70 knots. In order to meet the leg strength requirements, the tip of can (TOC) position should be at __________.
N a. 0.00 feet (flush with bottom of hull) N b. 1.20 feet Y c. 12.38 feet N d. 60.50 feet 4485: The COASTAL DRILLER has a trim of 2.13 feet by the stern. The draft in sea water at the forward draft marks is observed to be 8.0 feet. The KMT is __________.
Y a. 153.73 feet N b. 160.42 feet N c. 179.41 feet N d. 203.97 feet 5091: Obstruction lights on mobile offshore drilling units on the waters of the U.S. Outer Continental Shelf must be displayed __________.
N a. at all times Y b. between sunset and sunrise N c. whenever visibility is restricted N d. whenever vessels approach within one-half mile 5115: What kind of conditions would you observe as the eye of a storm passes over your MODU's position?
Y a. Huge waves approaching from all directions, clearing skies, light winds, and an extremely low barometer N b. Flat calm seas, heavy rain, light winds, and an extremely low barometer N c. Flat calm seas, heavy rain, light winds, and high pressure N d. Huge waves approaching from all directions, clearing skies, light winds, and high pressure 5196: You are hoisting a heavy lift with the jumbo boom. Your vessel displaces 8560 T. The 45-ton weight is on the pier and its center is 65' to starboard of the centerline. The head of the boom is 95' above the base line and the center of gravity of the lift when stowed on deck will be 55' above the base line. As the jumbo boom takes the strain the ship lists to 5.5°. What is the GM with the cargo stowed?
Y a. 3.74 ft. N b. 3.96 ft. N c. 4.16 ft. N d. 4.35 ft. 5817: The two main types of load cells used in mooring tension gauges are __________.
Y a. distortion and compression N b. hydraulic and mechanical N c. magnetic and applied torque N d. frictionless and hydraulic 6387: The vertical height and density of the drilling fluid are used to determine the __________.
N a. casing size Y b. hydrostatic pressure of the drilling fluid N c. presence of hydrogen sulfide gasses N d. diameter of the well 7575: The upward pressure of displaced water is called __________.
Y a. buoyancy N b. deadweight N c. draft N d. freeboard 8223: What is the purpose of a check valve?
N a. Passes air but not liquid N b. Regulates liquid flow Y c. Permits flow in one direction only N d. Passes liquid but not air 8407: If you are unable to stop a diesel engine by any other means, you should __________.
Y a. discharge a CO2 extinguisher in the air inlet N b. pull off the distributor cap N c. secure the jacket water N d. secure the starting air supply valve 8753: The maximum weight for the COASTAL DRILLER in severe storm conditions is __________.
Y a. 14,158 kips N b. 14,400 kips N c. 15,158 kips N d. 17,280 kips 8783: When using a hand held smoke signal aboard a survival craft, you should activate the signal __________.
Y a. on the downwind side of the craft N b. on the upwind side of the craft N c. inside the craft N d. at the stern of the craft 9531: When the height of the metacenter is greater than the height of the center of gravity, the upright equilibrium position is stable and stability is __________.
N a. unstable N b. neutral N c. negative Y d. positive 9547: A neutral equilibrium position for a vessel means that the metacenter is __________.
N a. lower than the keel Y b. at the same height as the center of gravity N c. exactly at midships N d. at the center of the waterplane area