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.
39: A flame screen __________.
Y a. permits the passage of vapor but not of flame N b. prevents the passage of flammable vapors N c. prevents inert gas from leaving a tank N d. permits vapors to exit but not enter a tank 50: What is not usually a concern when loading a single-hulled tanker?
N a. Bending moments Y b. Initial stability N c. Draft N d. Trim 236: What is the maximum number of sleeping accommodations a barge may have before it is required to have fire pumps, hydrants, hose, and nozzles installed?
N a. 5 N b. 8 Y c. 12 N d. 15 259: What does NOT affect the value of the free surface correction?
N a. Width of the tank N b. Length of the tank Y c. Registered tonnage N d. Specific gravity of the liquid in the tank 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 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. 569: A shaft alley divides a vessel's cargo hold into two tanks, each 25 ft. wide by 50 ft. long. Each tank is filled with salt water below the level of the shaft alley. The vessel's displacement is 6,000 tons. What is the reduction in GM due to free surface effect?
N a. .56 foot N b. .58 foot Y c. .62 foot N d. .66 foot 638: You are on watch at sea, at night, when the ordinary seaman reports a fire in number five upper 'tween deck. Which of the following should NOT be done immediately?
N a. Sound the general alarm N b. Secure mechanical cargo hold ventilation N c. Call for water on deck Y d. Release carbon dioxide into the affected compartment 791: During a training exercise a submarine indicating that a torpedo has been fired will send up smoke from a float. The smoke's color will be __________.
Y a. black N b. red N c. orange N d. yellow 800: The "trimming arm" of a vessel is the horizontal distance between the __________.
N a. LCB and LCF N b. LCF and LCG N c. LHA and LCG Y d. LCB and LCG 915: Which is/are required for engine exhaust pipe installations on small passenger vessels?
N a. Protection where people or equipment can contact the pipe. N b. Piping must be arranged so that water backflow cannot reach the engine exhaust ports N c. Dry exhaust pipe ending at the transom should be located as far outboard as possible Y d. All of the above 972: Which statement concerning carbon dioxide is FALSE?
N a. It displaces the oxygen in the air. N b. It cannot be seen. N c. It cannot be smelled. Y d. It is safe to use near personnel in a confined space. 1310: Frapping lines are fitted to lifeboat davits to __________.
Y a. reduce the swinging of the lifeboat as it is being lowered from the embarkation level N b. secure the lifeboat in the davits when in the stowed position N c. hold the lifeboat to the ship's side until the tricing lines are passed N d. be used as a safety line in an emergency 1567: Your vessel is carrying 84,000 barrels of oil for discharge. The cargo hoses have an inside diameter of 14 inches. When four hoses are connected to the manifold, the container around the manifold must hold a total of how many barrels?
N a. Three Y b. Four N c. Twelve N d. Sixteen 1621: Why is spare fire hose rolled for storage?
N a. Water in the hose is forced out the end in the rolling process. Y b. The threads on the male end are protected by the hose. N c. Rolling provides maximum protection against entry of foreign objects into the couplings. N d. Rolling provides maximum protection to the outer covering of the hose. 1673: In commercial fishing, "cold water" means water where the monthly mean low water temperature is normally __________.
N a. 39°Fahrenheit or less N b. 44°Fahrenheit or less N c. 49°Fahrenheit or less Y d. 59°Fahrenheit or less 1781: Which frequencies and modes are allocated for distress alerting in GMDSS?
N a. 406 MHz via EPIRB N b. 1626.5-1645.5 MHz via INMARSAT N c. Channel 70 DSC plus six (6) MF/HF DSC frequencies Y d. All of the above 1822: Which hazard probably would NOT be encountered when entering an empty but uncleaned fish hold?
N a. Lack of oxygen N b. Methane gas N c. Hydrogen sulfide gas Y d. Carbon monoxide 1858: A sailing vessel with the wind coming from 180° relative would be __________.
N a. close hauled on the port tack N b. close hauled on the starboard tack Y c. running before the wind N d. on a broad reach 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° 2050: You have 160 tons of below deck tonnage and 300 tons of above deck cargo on board. You must load 110 tons of liquid mud below deck. How much more deck cargo can you load? (See illustration D036DG, stability letter for M.V. Hudson.) (D036DG )
Y a. 55 tons N b. 99 tons N c. 140 tons N d. 360 tons 2237: Topside icing decreases vessel stability because it increases __________.
N a. displacement N b. free surface N c. draft Y d. KG 2294: Which extinguishing agent is NOT recommended in the Chemical Data Guide for use on a cyclohexane fire?
N a. Foam N b. Carbon dioxide N c. Dry chemical Y d. Water fog 2358: Your vessel's drafts are FWD 20'-08", AFT 23'-00". Use the information in Section 1, the blue pages, of the Stability Data Reference Book to determine the final drafts if 195 tons of cargo are discharged 76 feet aft of amidships.
N a. FWD 20'-05", AFT 21'-11" N b. FWD 20'-07", AFT 22'-01" Y c. FWD 20'-11", AFT 22'-00" N d. FWD 21'-03", AFT 22'-04" 2452: Your vessel's drafts are: FWD 22'-03", AFT 22'-09"; and the KG is 23.2 feet. What is the righting moment when the vessel is inclined to 30°? (Use the reference material in Section 1, the blue pages, of the Stability Data Reference Book)
N a. 20,790 foot-tons N b. 22,200 foot-tons Y c. 25,520 foot-tons N d. 28,080 foot-tons 2570: What is NOT a requirement of the reinspection for a tank barge with a certificate of inspection valid for two years?
Y a. The reinspection will be made between the fourteenth and sixteenth months. N b. The inspector shall examine all accessible parts of the vessels's hull. N c. The inspector shall examine the vessel's machinery as well as equipment. N d. The scope of the reinspection shall be the same as for the inspection for certification, but in less detail. 2722: Your vessel's drafts are: FWD 21'-08", AFT 24'-02". The LCG of the forepeak is 200 feet forward of amidships. How many tons of ballast must be pumped into the forepeak in order to have a drag of 18 inches? (Use the reference material in Section 1, the blue pages, of the Stability Data Reference Book)
N a. 53 tons N b. 57 tons N c. 61 tons Y d. 65 tons 2754: Which lifesaving equipment must be tested monthly?
N a. Inflatable PFD's Y b. EPIRB N c. Hydrostatic releases N d. Dated batteries 2863: You are berthed at a cargo facility where you have just completed discharging a dangerous cargo from your barge. You must complete topside repairs on the barge involving hot work before sailing. Which statement is TRUE?
N a. You can make repairs with permission of the facility owner since you are empty and the cargo is on the facility. N b. The repair area must be inspected by a marine surveyor to ensure that it can be done safely. N c. Hot work repairs at such a facility are prohibited. Y d. The Captain of the Port may give specific approval to make hot work repairs. 2919: All of the following are part of the fire triangle EXCEPT __________.
N a. fuel Y b. electricity N c. oxygen N d. heat 3100: Portable fire extinguishers must be provided for the cargo tank area of an unmanned tank barge __________.
N a. only when fully loaded N b. if one or more tanks are full Y c. when transferring cargo N d. only when the barge is being towed 3109: The SS AMERICAN MARINER has the liquid loading shown. Use the white pages of The Stability Data Reference Book to determine the KG of the liquid load. ST-0106
Y a. 3.9 feet N b. 4.3 feet N c. 4.7 feet N d. 5.1 feet 3198: Starting motors, generators, and other spark producing devices should be mounted as high above the bilges as possible to __________.
N a. keep them dry when the bilges are full of water N b. keep them cool when the vessel is underway N c. make them more accessible for repairs Y d. prevent accidental ignition of any gasoline vapors that may have accumulated in the bilges 3254: All uninspected motor vessels constructed after 25 April 1940, which use fuel with a flash point of 110°F (43°C) or less, shall have at least what number of ventilator ducts for the removal of explosive or flammable gases from every engine and fuel tank compartment? (Uninspected Vessel Regulations)
N a. 1 Y b. 2 N c. 3 N d. 4 3373: The DEEP DRILLER at survival draft loads 2,068.1 long tons of ballast. What is the new draft?
N a. 30.0 feet N b. 45.0 feet Y c. 60.0 feet N d. 75.0 feet 3677: The DEEP DRILLER, while loaded as shown in the Sample Load Form #4 (Drilling), suffers damage to the starboard aft column below the waterline. Pumping from tanks 8S and 9S is not sufficient to prevent increasing starboard list and stern down trim. You should consider counterflooding in tank __________.
N a. 1S Y b. 1P N c. C2BP N d. 10P 3712: The rescuer can best provide an airtight seal during mouth to mouth ventilation by pinching the victim's nostrils and __________.
N a. cupping a hand around the patient's mouth N b. keeping the head elevated Y c. applying his mouth tightly over the victim's mouth N d. holding the jaw down firmly 3714: If someone suffers a heart attack and has ceased breathing, you should __________.
N a. immediately give a stimulant, by force if necessary N b. make the victim comfortable in a bunk Y c. immediately start CPR N d. administer oxygen 3732: Heat exhaustion is caused by excessive __________.
N a. loss of body temperature Y b. loss of water and salt from the body N c. gain in body temperature N d. intake of water when working or exercising 3876: What is NOT a requirement for testing the line throwing appliance on a vessel?
N a. A drill should be conducted every three months. Y b. A regular service line must be used when it's fired. N c. A regular projectile must be used when it's fired. N d. The actual firing is at the discretion of the Master. 3995: The DEEP DRILLER is loaded as shown in Sample Load Form #4 (Drilling). What would be the new sum of vertical moments for the Stores & Supplies if paint weighing 3.48 tons is added to the paint locker?
Y a. 13,346 foot-tons N b. 5,054 foot-tons N c. 964 foot-tons N d. 292 foot-tons 4047: The DEEP DRILLER, loaded as shown in the Sample Load Form #4 (Drilling), discharges a non-liquid load of 275.8 long tons from a position 130 feet above the centerline. What is the improvement in KGT?
N a. 0.68 foot N b. 0.99 foot Y c. 1.16 feet N d. 2.07 feet 4174: Each EPIRB shall be tested using the integrated test circuit and output indicator every __________.
N a. week N b. two weeks Y c. month N d. quarter 4416: The color of the signal flare sent up by a submarine indicating that a torpedo has been fired in a training exercise is __________.
N a. white N b. yellow N c. red Y d. green 4463: The COASTAL DRILLER's ability to meet the damage stability criteria depends on maintaining a watertight integrity, KGL and KGT less than maximum allowed, level attitude, and displacement less than __________.
N a. 11,777 kips N b. 13,158 kips Y c. 14,158 kips N d. 17,280 kips 4573: The total leg load reactions on an independent leg, self-elevating unit include static and __________.
Y a. environmental loading N b. variable loading N c. fixed loading N d. basic loading 4615: On the machinery deck of the COASTAL DRILLER, each watertight compartment has at least one sump valve that can be remotely operated from the __________.
N a. OIM's quarters N b. OIM's office N c. control house Y d. bilge pit 5286: A vessel is inclined at an angle of loll. In the absence of external forces, the righting arm (GZ) is __________.
N a. positive N b. negative Y c. zero N d. vertical 5501: What is a major disadvantage of Di-Lok chain compared with Oil Rig Quality (stud link) chain in floating drilling rig operations?
Y a. Shorter fatigue life N b. Higher weight N c. Lower strength N d. Greater expense 5783: In storm conditions in 600 feet of water, completely slacking the leeward mooring line of the DEEP DRILLER reduces the tension in that line to about __________.
N a. 25 kips Y b. 50 kips N c. 75 kips N d. 100 kips 6467: The series of valves used to control the return flow in well control operations is called the __________.
N a. valve assembly N b. standpipe manifold N c. accumulator manifold Y d. choke manifold 6605: All fire hoses on mobile offshore drilling units must be tested to a pressure of at least __________.
N a. 100 psi Y b. 110 psi N c. 120 psi N d. 130 psi 6806: A fire has broken out on the stern of your vessel. You should maneuver your vessel so the wind __________.
N a. blows the fire back toward the vessel N b. comes over the stern Y c. comes over the bow N d. comes over either beam 7035: If a diabetic suffers an insulin reaction and is conscious, he should be given __________.
N a. soda crackers and water Y b. orange juice N c. an ounce of whiskey N d. a glass of milk 7367: Among the possible causes of unexpected rapidly increasing inclination of the DEEP DRILLER while on location is __________.
N a. consumption of on board variables N b. miscalculation of loads N c. external environmental forces Y d. flooding due to column damage 8063: Cartridge-operated dry chemical extinguishers used on MODU's should have the propellant cartridge weighed every __________.
N a. 3 months N b. 6 months Y c. 12 months N d. 2 years 8332: What type of stern tube bearing has the least friction?
Y a. Oil-lubricated bearings N b. Lignum vitae N c. Hard rubber N d. Bronze bushings 8977: The important stability parameter, KG, is defined as the __________.
N a. metacentric height N b. height of the metacenter above the keel N c. height of the center of buoyancy above the keel Y d. height of the center of gravity above the keel 9485: The difference between the starboard and port drafts due to wind or seas is called __________.
N a. list Y b. heel N c. trim N d. flotation 9621: You notice smoke coming from an open laundry room doorway. After activating the fire alarm, which of the following would you do FIRST?
N a. Protect the adjacent spaces on the same deck as the laundry room. Y b. Locate and use the nearest portable extinguisher, if conditions permit. N c. Protect the compartment directly above the laundry room. N d. Go to the nearest fire station and break out the hose.