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.
70: You are on a tankship designed to carry molten sulfur. Which statement is TRUE?
N a. There must be two portable toxic vapor detectors on board. N b. The cargo tank ventilation system must maintain the H2S vapor concentration at 1.85% or more by volume. Y c. Cargo temperature may be taken by portable thermometers. N d. The pressure in the heating coils in the tanks must be less than that of the cargo exerted on them. 82: Floors aboard ship are __________.
N a. also called decks Y b. vertical transverse plates connecting the vertical keel with the margin plates N c. large beams fitted in various parts of the vessel for additional strength N d. found in passenger and berthing spaces only 124: Bilge soundings indicate __________.
N a. the amount of condensation in the hold N b. whether the cargo is leaking or not N c. whether the vessel is taking on water Y d. All of the above 180: Your tank vessel is loading a hazardous cargo. The allowance for expansion is based on ambient temperatures of what maximum range?
N a. 0°C to 100°C N b. -10°C to 90°C Y c. -18°C to 46°C N d. -40°C to 50°C 190: You are on a vessel that carries liquefied gasses in bulk. The person on watch is required to have what information about the cargo easily accessible?
N a. Port of loading N b. Exact quantity on board N c. Name and address of consignee Y d. Firefighting procedures 208: Your vessel has been damaged and you must shore a bulkhead. You should cut the shore __________.
N a. approximately 1/2 inch longer than the measured length to allow for trimming Y b. approximately 1/2 inch shorter than the measured length to allow for wedges N c. approximately 1/2 inch shorter per foot of shoring to allow for wet expansion N d. to the same length as the measured length 226: Which statement is TRUE concerning the vessel's slipstream?
N a. It has no effect on the steering of the vessel. N b. It has no effect on the rudder when the helm is amidships. N c. Its velocity is the same as that of the wake. Y d. The propeller gives it a helical motion. 323: You are transporting dangerous cargo on your vessel. The regulations require you to __________.
Y a. periodically inspect it and make an entry in a log N b. keep a warning sign posted nearby N c. keep a fire hose run out and ready for use if needed N d. allow no chipping or painting in the vicinity of the cargo 565: When the pilot is embarked he or she __________.
N a. relieves the officer of the watch N b. relieves the Master of his duties N c. is solely responsible for the safe navigation of the vessel Y d. is a specialist hired for his or her local navigational knowledge 575: What is a correct reply to a pilot's request, "How's your head"?
N a. "Steady" N b. "Checked" Y c. "Passing 200°" N d. "Eased to 10° rudder" 577: You are signing on a crew. A man presents a Merchant Mariner's Document that you suspect has been tampered with. Which action should you take?
N a. Confiscate the document and deliver it to the Coast Guard. N b. Sign the man on and notify the Coast Guard at the first U.S. port of call. Y c. Refuse to sign the man on articles until authorized by the Coast Guard. N d. Refuse to sign the man on and notify the FBI of unauthorized use of a federal document. 578: When loading a container vessel, the operation is basically that of vertical loading. The important factors to be considered when loading containers are port of discharge, __________.
N a. available dunnage, and chocking N b. crushability, and inherent vice N c. sweat, and weight Y d. weight, and refrigeration A dark appearance of the sky: A yellowish glare in the sky
Y a. The presence of seals or certain type birds N b. N c. N d. 711: If an alien stowaway is discovered aboard your vessel, his name must be placed on the __________.
N a. Alien Crew List N b. Crew List N c. Passenger List Y d. separate Passenger List marked stowaways 880: The projecting lugs of the rudderpost which furnish support to the rudder are called __________.
N a. bases Y b. gudgeons N c. pintles N d. rudder lugs 977: An ocean tow is sinking in deep water. Attempts to sever the towing hawser are unsuccessful. Which action should now be taken?
N a. Abandon the towing vessel. N b. Radio for emergency assistance. Y c. Slip the towline and allow it to run off the drum. N d. Secure all watertight openings on the towing vessel. 1057: The Certificate of Inspection of a damaged tank barge has expired. What certificate authorizes the barge to move to a repair facility for repair and inspection?
N a. Application for Inspection N b. Change of Employment Y c. Permit to Proceed N d. Temporary Certificate of Inspection 1141: A vessel has arrived in a U.S. port from a foreign voyage. Preliminary entry has been made. Formal entry at the U.S. Custom House must be made within how many hours after arrival (Sundays and holidays excepted)?
N a. 12 N b. 24 Y c. 48 N d. 72 without exception 1175: You have arrived at your anchorage location. You have put the engines astern prior to letting go the anchor. How will you know when the vessel has stopped making way?
N a. The ship's Doppler log reads zero Y b. The backwash of the propeller reaches amidships N c. An azimuth bearing on the beam remains steady N d. All of the above 1265: You are picking up an unconscious person that has fallen overboard in a fresh breeze. For safety reasons a small craft should approach with the __________.
N a. victim to leeward Y b. victim to windward N c. wind on your port side N d. wind on your starboard side 1281: The agency most concerned with a stowaway is __________.
N a. Customs Y b. Immigration N c. Public Health N d. U.S.D.A. 1310: Which statement is TRUE concerning protection of double bottom tanks against excessive pressure?
N a. Each vent for the tank must be equal to the area of the tank filling line. N b. The tanks must be protected by overflows. Y c. The total area of the vents or the overflow shall be at least 125% of the area of the fill line. N d. There must be twice as much vent area as the area of the fill line. 1458: The catenary in a towline is __________.
N a. a short bridle Y b. the downward curvature of the hawser N c. another name for a pelican hook N d. used to hold it amidships 1470: Signs of racking stresses generally appear at the __________.
N a. bow and stern shell frames and plating Y b. junction of the frames with the beams and floors N c. garboard strake, at each side of the keel N d. thrust bearing of the main shaft 1517: Which picture represents a timber hitch? (DO30DG )
Y a. E N b. F N c. N N d. U 1575: The key to rescuing a man overboard is __________.
N a. good communication N b. a dedicated crew N c. good equipment Y d. well-conducted drills 1697: Using the graph shown, if the dry bulb temperature is 85°, and the wet bulb temperature is 73°, what is the relative humidity in a cargo hold? (D008DG )
N a. 42% Y b. 55% N c. 67% N d. 85% 1734: Which knot reduces the strength of a line by the LEAST amount?
N a. Bowline N b. Clove hitch N c. Sheet bend Y d. Two half hitches 1859: You are attempting to take a dead ship in tow. All lines have been passed and secured. How should you get underway?
N a. Order minimum turns until the towing hawser is just clear of the water, then reduce speed to that necessary to keep the line clear of the water. N b. If the towline is properly adjusted and weighted you can order slow or dead slow and the towline will act as a spring to absorb the initial shock. N c. Order minimum turns until the towing hawser is taut and then continue at that speed until towing speed is attained. Y d. Order minimum turns until the catenary almost breaks the water, then stop. Order more turns as the hawser slackens but keep the catenary in the water. 1888: How many legs does the bridle for an ocean tow have?
N a. One Y b. Two N c. Three N d. Four 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 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. 2095: You are using a racetrack turn to recover a man overboard. The vessel is first steadied when how many degrees away from the original heading?
N a. 60° to 70° N b. 90° N c. 135° Y d. 180° 2111: You are anchoring in 16 fathoms of water. On a small to medium size vessel, the __________.
N a. anchor may be dropped from the hawsepipe Y b. anchor should be lowered to within 2 fathoms of the bottom before being dropped N c. scope should always be at least ten times the depth of the water N d. scope should always be less than 5 times the depth of the water 2264: When you "end for end" a wire rope, you __________.
N a. cut off the free end and bitter end of the rope N b. splice two wire ropes together Y c. remove the wire rope from the drum and reverse it so that the free end becomes the bitter end N d. remove the wire rope from the drum and turn it over, so the wire bends in the opposite direction 2284: In determining the scope of anchor line to pay out when anchoring a small boat, one must consider the __________.
N a. charted depth of water only Y b. depth of water, including tidal differences N c. type of line being used for the anchor rope N d. type of anchor being used 2343: When securing a hook to the end of a wire rope you should use __________.
N a. a bowline knot N b. a long splice N c. an overhand knot with a wire rope clip Y d. wire rope clips with a thimble eye 2344: An example of an anchor which has a stock is a __________.
N a. Bruce anchor N b. Dunn anchor N c. Hook anchor Y d. Danforth anchor 2490: The best method of protecting that portion of a fiber anchor line nearest the anchor from chafing on the bottom is by __________.
N a. using a small scope ratio Y b. replacing that portion with a short length of chain N c. using a hockle to keep that portion of the anchor line off the bottom N d. using a synthetic line 2512: Ultrasonic testing is used to determine the thickness of a vessel's shell plating and to __________.
N a. provide tail shaft clearances Y b. test welds for subsurface defects N c. check the wear of the rudder carrier bearing N d. test the links of the anchor cables while being ranged 2546: The dangerous cargo manifest does NOT indicate __________.
N a. the stowage location of hazardous material aboard the vessel N b. a description of the packaging (drums, boxes, etc.) N c. UN identification numbers Y d. the net weight of each hazardous cargo 2644: The boat is stowed on the davit rather than on a cradle with which type of davit?
Y a. Crescent N b. Sheath-screw boom N c. Quadrantal N d. Radial 2855: A 150-meter vessel is proceeding down the course of a narrow channel in the Great Lakes System. A 60-meter vessel is starting to cross the channel. Which statement is TRUE?
Y a. If the smaller vessel is engaged in fishing, he shall not impede the passage of the other vessel. N b. The crossing vessel has the right of way. N c. The vessel in the channel must slow to her steerageway. N d. The larger vessel is considered to be a vessel restricted in her ability to maneuver. 2888: The Coordinator Surface Search in a SAR situation should display by day __________.
Y a. the code flags FR N b. a black ball over a black diamond shape N c. code flag Quebec over a black ball N d. two black diamond shapes in a vertical line 2902: Which basic category of water level fluctuations on the Great Lakes is the most regular?
Y a. Seasonal fluctuations N b. Outflow fluctuations N c. Short-term fluctuations N d. Long-term fluctuations 3008: A list signal of one white light indicates that the vessel is __________.
N a. on an even keel Y b. listing about 1° to the side the light is displayed on N c. listing over 5°With the light displayed on the high side N d. listing, and the chutes should be directed to the side where the light is displayed 3016: To obtain better steering control when you are towing alongside, your vessel should be positioned with its __________.
N a. bow extending forward of the tow N b. stern amidships of the tow Y c. stern extending aft of the tow N d. bow even with the bow of the tow 3030: The piping that routes an oil cargo from the manifold to underdeck pipelines is known as a __________.
N a. cargo fill Y b. line drop N c. transfer N d. branch line 3124: You attach a line to a stationary barge lying off your starboard beam in order to maneuver it into position to make up tow. The line used to do this is a __________.
N a. jockey line N b. fore and aft line N c. check line Y d. swing line 3142: Why are stern towing bitts placed well forward of the rudder when hawser towing?
N a. To keep the hawser from fouling the rudder N b. To keep the towing bitts as far away as possible from the tugs pivoting point Y c. To allow the stern to swing more freely when using rudder N d. To have as much of the towing hawser in use as possible 3464: The ultimate or maximum strength of a wire rope is referred to as the __________.
N a. operating strength N b. working load Y c. breaking strength N d. lifting load 3722: The next-to-last shot of an anchor cable is usually painted __________.
N a. white N b. international orange Y c. yellow N d. red 3820: When making a Scharnow turn, the __________.
N a. rudder must be put over towards the side the man went over N b. initial turn direction is away from the side the man went over Y c. rudder is put hard over and the initial turn is maintained until about 240° from the original course N d. man overboard must be not more than 300 feet astern when starting the turn 3938: With a given load on the cargo hook, tension in a single span topping lift __________.
N a. increases as the boom's angle to the horizontal increases N b. is at a maximum when the boom is at a 45° angle to the horizontal Y c. increases as the boom's angle to the horizontal decreases N d. decreases as the boom's angle to the horizontal decreases 4012: The purpose of item G is to __________. (D024DG )
N a. distribute the vessel's thrust over a wider area N b. prevent the towboat from capsizing if item I should part Y c. prevent the knee from shifting when the rudder is put hard over N d. keep the barges from shifting fore and aft 4113: What is(are) standard operating procedure(s) used on a Ro-Ro vessel?
Y a. Periodic inspection and retensioning of lashings as required during voyage N b. Lashings may be completed after the vessel leaves port N c. One QMED assigned to oversee the initial loading and lashing N d. All of the above 4136: A disadvantage of using chain lashing on heavy vehicles aboard Ro-Ro vessels is that it __________.
N a. can wrap around cargo N b. is easily damaged N c. is affected by temperature Y d. does not absorb shock 4147: Which tensioning device is used with wire rope lashing to secure vehicles aboard Ro-Ro vessels?
N a. Chain lever. Y b. Adjust-a-matic tensioner N c. Buckle tensioner N d. Ratchet tensioner 4205: Which piece of equipment is required to "twin-up" 30-ton pedestal cranes aboard a crane vessel?
N a. Portable power swivel Y b. Equalizing beam N c. 20-foot container spreader N d. 40-foot container spreader 4282: Which statement is TRUE concerning a tagline as used with a 30-ton pedestal crane?
N a. Taglines are wire rope purchases that raise and lower the jib. N b. Taglines can be fastened to the corners of the jib when lifting containers. Y c. The crane might not have taglines installed in its rigging system. N d. The taglines are wire rope purchases that raise and lower the topping lift.