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.
42: The vapor pressure of a substance __________.
N a. decreases as temperature increases Y b. increases with the temperature N c. is not affected by temperature N d. may increase or decrease as the temperature rises 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. 169: The lowest temperature at which a liquid will give off sufficient vapors to form a flammable mixture with air is known as the __________.
N a. fire point Y b. flash point N c. lower explosive limit N d. threshold limit value 215: How does the effect known as "bank suction" act on a single-screw vessel proceeding along a narrow channel?
N a. It pulls the bow toward the bank. N b. It heels the vessel toward the bank. N c. It pushes the entire vessel away from the bank. Y d. It pulls the stern toward the bank. 240: The best way to lift many small articles aboard your vessel is with a __________.
Y a. pallet N b. barrel hook N c. spreader N d. snotter 250: The damage to a vessel is over $25,000. Who must notify the nearest Coast Guard Marine Safety or Marine Inspection Office as soon as possible?
N a. The crew members Y b. The Master of the vessel N c. The port authorities N d. All of the above 321: Which is a TRUE statement concerning the examining of cargo equipment at the time of a vessels Inspection for Certification.
N a. Cargo booms must be weight tested at this time by the U.S. Coast Guard. N b. Cargo booms must be weight tested at this time by the American Bureau of Shipping. N c. Cargo booms must be weight tested at this time by the National Cargo Bureau. Y d. No test at this time is required. 324: A "chock" is a __________.
N a. deck fitting used to secure mooring lines Y b. casting fitted at the side of a weather deck, used as a fairlead N c. sharp block of wood used to support hygroscopic cargo N d. smoke pipe for the galley stove 378: In preparation for receiving chilled reefer cargo, the reefer space has been precooled for over twenty-four hours. Loading may begin when the space has been cooled to a temperature between __________.
N a. -10°F (-23°C) and +10°F (-12°C) N b. 12°F (-11°C) and 20°F (-7°C) Y c. 28°F (-2°C) and 40°F ( 4°C) N d. 42°F (6°C) and 55°F (13°C) 407: You are carrying cargoes of crotonaldehyde, phosphoric acid, and morpholine on your multiple-product tankship. Which of the following statements is TRUE?
Y a. Each of the cargoes must be segregated from the other by at least two barriers. N b. The minimum protective clothing required for taking samples of phosphoric acid is goggles or a face shield. N c. Aluminum, copper, and zinc are prohibited in all valve parts in contact with these cargoes. N d. The required warning sign must have the legend "cancer hazard" added to it. 435: The amount of force a tug can exert on a stationary pull is called its __________.
N a. brake horsepower N b. indicated horsepower N c. shaft horsepower Y d. bollard pull 474: On an anchor windlass, the wheel over which the anchor chain passes is called a __________.
N a. brake compressor wheel N b. devil's claw Y c. wildcat N d. winchhead 493: What does "end for end" mean in regard to a towing hawser?
N a. To take the kinks out of the hawser N b. To fake it down in figure eights N c. To increase the catenary Y d. To swap ends of the hawser to minimize wear 547: Where is an intermediate spring or surge line placed in the towing hookup?
Y a. Connected between the main towing hawser and the towing bridle N b. Connected between the "H" towing bitts and the main towing hawser N c. End of line fastened directly to the drum of the towing winch N d. As both legs of the towing bridle 613: A lookout can leave his station __________.
N a. at the end of the watch Y b. only when properly relieved N c. at any time N d. 15 minutes before the end of the watch 734: What is the computed breaking strength of a 4-inch manila line?
N a. 5,280 lbs. N b. 7,700 lbs. N c. 12,200 lbs. Y d. 14,400 lbs. 749: Butadiene, inhibited, is labeled as a __________.
N a. combustible liquid Y b. flammable gas N c. flammable liquid N d. flammable solid 763: A vessel that tows astern must have a/an ___________ .
N a. towing winch Y b. method to easily release the towline N c. oxy-acetylene cutting torch N d. ax or knife mounted near the towing bitts 836: River currents tend to __________.
N a. pick up speed where the channel widens N b. run slower in the center of the channel N c. hug the inside of a bend Y d. cause the greatest depth of water to be along the outside of a bend 865: A nylon line is rated at 15,000 lbs. breaking strain. Using a safety factor of 5, what is the safe working load (SWL)?
Y a. 3,000 lbs N b. 5,000 lbs N c. 15,000 lbs N d. 65,000 lbs 888: You are going to load bales of wool having a stowage factor of 100 in #3 lower hold which has a bale cubic of 62,000. How many tons of the wool can be stowed in the compartment, assuming 10% broken stowage?
N a. 520 Y b. 558 N c. 620 N d. 654 931: Which is NOT a required entry in the ship's Official Logbook?
N a. Sale of effects of a deceased crew member N b. Medical treatment of an injury N c. Inspections of cargo gear Y d. Dry docking of the vessel 932: When bunkering at a dock which of the following signals must be displayed?
N a. A yellow flag by day, red light by night Y b. A red flag by day, red light by night N c. A green flag by day, green light by night N d. A red flag by day, a blue light by night 1080: The "inner bottom" is the __________.
Y a. tank top N b. compartment between the tank top and shell of the vessel N c. inner side of the vessel's shell N d. space between two transverse bottom frames 1168: A vessel has completed loading cargo in the port of San Francisco. What document is signed by the Master stating the terms that goods were delivered and received by the ship?
N a. Bill of Goods Y b. Bill of Lading N c. Cargo Manifest N d. Cargo Receipt 1188: An implied warranty of seaworthiness on the part of the vessel's owner lies in the __________.
N a. Cargo Manifest N b. Certificate of Inspection N c. Classification Certificate Y d. contract of carriage, i.e. Bill of Lading 1320: A cofferdam is __________.
N a. any deck below the main deck and above the lowest deck N b. a member that gives fore-and-aft strength Y c. made by placing two bulkheads a few feet apart N d. a heavy fore-and-aft beam under the deck 1471: One of the requirements for a general average act is __________.
Y a. a successful venture N b. no imminent peril N c. no losses N d. All of the above 1473: The "carrick bend" is used to __________.
N a. add strength to a weak spot in a line Y b. join two hawsers N c. be a stopper to transfer a line under strain N d. join lines of different sizes 1657: What is the perimeter of a circle with a radius of 5.1 feet?
N a. 81.71 ft N b. 64.08 ft N c. 40.85 ft Y d. 32.04 ft 1723: What is meant by the term "two-blocked"?
Y a. The bottom block touches the top block. N b. The line has jumped the sheaves. N c. There are turns in the fall. N d. You have two blocks. 1808: Which organization would conduct a survey of the insulation in a reefer compartment prior to loading cargo?
N a. U.S. Customs Service N b. OSHA Y c. American Bureau of Shipping N d. National Cargo Bureau 1855: Which problem is virtually impossible to detect during an in-service inspection of used anchor chain?
N a. Cracks N b. Elongation N c. Loose studs Y d. Fatigue 1862: How much force would be required to lift a weight of 200 lbs. using a gun tackle rigged to disadvantage (do not consider friction)?
N a. 50 lbs. Y b. 100 lbs. N c. 150 lbs. N d. 200 lbs. 1931: You are using tackle number 12 to lift a weight of 300 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. 80 lbs. Y b. 69 lbs. N c. 55 lbs. N d. 50 lbs. 1933: When checking a mooring line, you should __________.
N a. ensure the bight is not fouled between the ship and the dock by taking up slack N b. pay out slack smartly and keep free for running N c. secure more turns to hold the line against any strain, then clear the area Y d. surge the line so that it maintains a strain without parting 1972: Payment of penalty for a ship's delay after the expiration of lay days due to some fault of the charterer or his agent is known as __________.
Y a. demurrage N b. late fee N c. miscibility N d. volatility 1974: In a national emergency, when communicating via the Navy, messages are sent by precedence. A message designated PRIORITY will be delivered within __________.
Y a. 1 to 6 hours N b. 30 minutes to 1 hour N c. 3 hours to start of business the following day N d. 10 minutes if possible 1997: What is the name of tackle number 12? (DO29DG )
Y a. Threefold purchase N b. Davit tackle N c. Deck tackle N d. Gin tackle 2011: The structural member indicated by the letter K is a __________. (D033DG )
N a. longitudinal frame N b. stringer N c. girder Y d. floor 2067: What is the mechanical advantage, neglecting friction, of tackle number 12? (DO29DG )
N a. 3 N b. 5.5 N c. 6 Y d. 7 2131: If you carry packaged hazardous cargoes on a break bulk vessel bound foreign, you must __________.
N a. stow the hazardous cargoes on deck available for jettisoning if necessary N b. remove the hazardous cargo labels from a portable tank after the tank is emptied Y c. have the shipping papers indicate the proper shipping name and the technical name of n.o.s. cargoes N d. log the receipt of hazardous cargoes in the Official Logbook 2131: If you carry packaged hazardous cargoes on a break bulk vessel bound foreign, you must __________.
N a. stow the hazardous cargoes on deck available for jettisoning if necessary N b. remove the hazardous cargo labels from a portable tank after the tank is emptied Y c. have the shipping papers indicate the proper shipping name and the technical name of n.o.s. cargoes N d. log the receipt of hazardous cargoes in the Official Logbook 2187: You are using tackle number 10 to lift a weight. The hauling part of this tackle is bent to the weight hook (w) of tackle number 5. What is the mechanical advantage of this rig? (DO29DG )
Y a. 25 N b. 20 N c. 15 N d. 10 2216: What is the mechanical advantage, neglecting friction, of tackle number 4? (DO29DG )
N a. 1 N b. 2 N c. 3 Y d. 4 2230: What is the name of tackle number 1? (D029DG )
Y a. Whip N b. One-fold purchase N c. Gun tackle N d. Runner 2232: The MAIN use of the knot lettered M is to __________. (DO30DG )
Y a. marry two hawsers N b. form a temporary eye in the end of a line N c. secure a heaving line to a hawser N d. provide a seat for a man to work over the side 2301: In towing, chocks are used to __________.
Y a. protect the towline from chafing N b. secure the end of the towline on the tug N c. stop off the towline while retrieving it N d. absorb shock loading on the towline 2303: You are proceeding under NCS (Naval Control of Shipping) and wish to send a message warning of a hurricane. Which precedence would you assign this message?
N a. P (PRIORITY) N b. Z (FLASH) N c. R (ROUTINE) Y d. O (IMMEDIATE) 2464: Which term describes a part of a natural fiber line?
Y a. Yarns N b. Twines N c. Lacings N d. Lays 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 3017: Which situation requires you to furnish a notice of marine casualty to the Coast Guard?
N a. Storm damage to the cargo winch motors requires repairs costing $19,000. Y b. Your vessel is at anchor and grounds at low tide with no apparent damage. N c. You collide with a buoy and drag it off station with no apparent damage to the vessel or the buoy. N d. A seaman slips on ice on deck and sprains his ankle, requiring an ace bandage. 3048: The proximity of pack ice may be indicated by __________.
N a. changes in seawater salinity Y b. glare on clouds on the horizon N c. changes in air temperature N d. icebergs 3126: Your tankship is carrying a cargo of styrene. Which of the following is NOT a requirement for carriage of this cargo?
Y a. P/V valves with galvanized parts must be replaced. N b. Authorization to carry styrene must be endorsed on the Certificate of Inspection. N c. You must have a "Certificate of Inhibition" provided by the shipper. N d. The cargo tank heating coils must be blanked off. 3168: Which item is rigged to transmit the thrust from one barge to another when backing down? (D024DG )
N a. I N b. H Y c. C N d. B 3456: The vertical movement of a vessel in the water is called __________.
N a. pitch N b. sway Y c. heave N d. roll 4058: Your vessel is equipped with mechanical davits. When stowing the lifeboat after a drill while underway, you should __________.
N a. leave the tricing pendants slack Y b. ensure the falls are taut N c. leave the outboard part of the cradle in the down position N d. secure the inboard gripes only 4117: Cargo securing for Ro-Ro is based on the concept of __________.
N a. solid packing Y b. rapid loading and discharge N c. vessel loaded full and down to her marks N d. palletized cargo 4137: A disadvantage of using chain lashing on heavy vehicles aboard Ro-Ro vessels is that it is __________.
Y a. heavy N b. easily damaged N c. affected by temperature N d. costly relative to the strength ratio 4270: Which immediate action should the operator of a pedestal crane take if crane control is lost?
Y a. Let go of both control levers and return to neutral position. N b. Call the engine room. N c. Disconnect the power to the pedestal. N d. Call the electrician.