Term
| Verticle motion of a floating vessel is known as a |
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Definition
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Definition
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Term
| pitching is angular motion about what axis |
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Definition
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Term
| rolling is angular motion about the vessel at what axis? |
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Definition
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Term
| angular motion about longitudinal axis of a vessel is |
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Definition
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Term
| angular movement of a vessel about a horizontal line drawn from its bow to stern |
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Definition
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Term
| Horizontal fore or aft of a vessel is known as |
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Definition
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Term
| horizontal transverse motion is known as |
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Definition
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Term
| angular motion about the vertical axis of a vessel is |
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Definition
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Term
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Definition
| endwise view of the ships molded form |
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Term
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Definition
| shows longitudinal side elevation |
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Term
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Definition
| usually drawn port side only |
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Term
| the best information on the location of the blocks when drydocking a vessel is contained in the |
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Definition
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Term
| to determine the weight capacity of a deck in a cargo hold you would refer to the |
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Definition
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Term
| the type of welding employed in shipyards es primarily |
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Definition
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Term
| welded joint is considered |
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Definition
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Term
| what welding pattern is not used to permanently attach a stiffener to a plate |
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Definition
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Term
| the welds used to join shell plated in a flush construction are known as |
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Definition
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Term
| the welds used to attach stiffeners to a plate are called |
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Definition
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Term
| which of the following weld faults can only be detected by a method that examines the eternal structure of a weld |
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Definition
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Term
| the smallest size of flaw that can be detected on a radiograph examination of a weld will be indicated by the |
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Definition
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Term
| which of the following types of weld testing can be used to detect any internal flaws |
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Definition
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Term
| which of the following types of weld testing can be used to detect any internal flaw |
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Definition
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Term
| ultrasonic testing is used to determine the thickness of a vessel's shell plating and to |
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Definition
| test welds for subsurface defects |
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Term
| which of the following is true concerning repairs on the hull of a vessel which is too be riveted and welded |
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Definition
| welding must be completed before the riveting begins |
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Term
| Sometimes it is desirable to connects a member both by riveting and welding. which statement is true concerning this procedure |
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Definition
| the welding must be completes before the riveting begins |
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Term
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Definition
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Term
| a "liner"in a riveted construction of a vessel is a |
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Definition
| small plate which fills the aperture between riveted strakes and the vessel framing |
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Term
| when riveted joints occur at the ends of plating they are called |
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Definition
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Term
| after riveting is completed the joints on the shell of a vessel are generally made water tight by |
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Definition
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Term
| the "grip" of a joint represents the |
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Definition
| thickness of the connected members |
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Term
| the distance between rivets in a row is known as the |
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Definition
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Term
| how are riveted joints made watertight |
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Definition
| the plate edge is split close to an adjacent plate and mechanically forced into contact with the adjacent plate |
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Term
| the type of joint formed when a third small plate is riveted over two plates butted together is called a |
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Definition
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Term
| the use of liners in riveted construction is eliminated by using |
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Definition
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Term
| which of the following is not an item that requires the vessel to be dry docked |
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Definition
| verification of load line measurements |
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Term
| while in drydock your vessel will be belt gauged. this process involves |
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Definition
| drilling or sonic testing the hull to determine the plate thickness |
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Term
| a large basin cut into the shore closed off by a caisson and used for drydocking of ships is known as |
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Definition
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Term
| wale shores would be used when drydocking a vessel with |
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Definition
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Term
| which of the following statements about a vessels stability while drydocking is true |
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Definition
| everyton of weight bearing on the blocks acts as if a ton of weight was removed from the keel |
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Term
| the maximum length allowed between main transverse bulkheads on a vessel is referred to as the |
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Definition
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Term
| a carling is used aboard a ship |
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Definition
| to stiffen areas under points of great stress between beams |
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Term
| the pillar shape that gives the greatest strength for the least weight is the |
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Definition
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Term
| the term "scantlings" refers to the |
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Definition
| measurements of structural members |
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Term
| the usual depth of a beam bracket is |
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Definition
| 2 1/2 times the depth of the beam |
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Term
| the deck beam brackets of a transversely framed vessel resist |
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Definition
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Term
| the strength of a deck will be increased by adding |
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Definition
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Term
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Definition
| provide drainage from the decks |
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Term
| the space above the engine room is called the |
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Definition
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Term
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Definition
| a bar securing a cargo port |
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Term
| a fitting used to secure line or wire rope consisting of a single body and two protruding horns is called the |
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Definition
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Term
| a partial deck in the hols is called the |
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Definition
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Term
| by definition a spar deck is |
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Definition
| upeer or weather deck above the main strength deck |
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Term
| the fore and aft run of deck plating witch strengthens the connection between the beams ans the frames and keeps the beams square to the shell is called the |
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Definition
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Term
| which is not an advantage of double bottoms |
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Definition
| they are less expensive to construct because of the increased access space |
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Term
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Definition
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Term
| a term applied to the bottom shell plating in a double bottom ship is |
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Definition
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Term
| the terms ceiling and margin plate are associated with the |
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Definition
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Term
| the purpose of a bilge well is to |
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Definition
| collect water to be pumped out |
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Term
| limber is associated with |
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Definition
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Term
| when using the term limber system one is referring to a |
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Definition
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Term
| which statement concerning solid floors is true |
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Definition
| they may have lightening limber of air holes cut into them |
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Term
| the floors in a vessels hull structure are kept from tripping or folding over by |
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Definition
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Term
| which is an advantage of using watertight longitudinal divisions in a double bottom tank |
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Definition
| cuts down free surface effect |
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Term
| the floors in a vessels hull structure are kept from tripping or rolling over by |
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Definition
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Term
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Definition
| outboard strake of plating on each side of an inner bottom |
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Term
| vertical structural members attached to the floors that add strength to the floors are called |
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Definition
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Term
| in ship construction frame spacing |
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Definition
| reduced at the bow and stern |
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Term
| to rigidly fasten together the peak frames the stern and the outside framing a horizontal plate is fitted across the forepeak of a vessel. this plate is called |
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Definition
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Term
| battens are fitted in cargo holds across the frames of the vessel from the turn of the bilge upward. the purpose of these cargo battens is |
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Definition
| to prevent cargo from coming in contact with the vessels frames or shell plating |
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Term
| what is the purpose of cant frames in steel vessels |
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Definition
| provide strength to shell plating at the stern |
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Term
| panting frames are located in the |
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Definition
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Term
| on a single screw vessel a function of the stern frame is |
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Definition
| furnishing support to the rudder propeller shaft and transom frame |
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Term
| the terms cant frame and counter are associated with the vessels |
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Definition
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Term
| lighter longitudinal stiffening frames on the vessels side plating are called |
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Definition
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Term
| reinforcing frames attached to a bulkhead on a vessel are called |
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Definition
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Term
| in a transversely framed ship the transverse frames are supported by all of the following except |
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Definition
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Term
| in a longitudinally framed ship the longitudinal frames are held in place and supported be athwartship members |
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Definition
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Term
| in ship construction keel scantlings should be greatest |
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Definition
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Term
| keel scantlings of any vessel are greatest amidships because |
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Definition
| of maximum longitudinal bending momnets |
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Term
| bilge keels are fitted on ships to |
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Definition
| reduce rolling of the vessel |
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Term
| which statement about the design of the bilge keel is correct |
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Definition
| they are joined to the shell plate with a weak joint |
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Term
| bilge keels are more effective at dampening rolls as the |
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Definition
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Term
| the extension of the after part of the keel in a single screw vessel upon which the stern post rests is called the |
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Definition
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Term
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Definition
| the outer plating of a vessel |
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Term
| shell plating that has curvature in two directions and must be heated and hampered to shape over specially prepared forms is called |
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Definition
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Term
| the joint formed when two steel shell plates are placed end to end is called |
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Definition
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Term
| joint formed when two steel shell plates are placed longitudinally side to side is called a |
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Definition
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Term
| which arrangement of shell plating is used most on modern shipbuilding |
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Definition
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Term
| which is not an advantage of using welded butt joints in the shell plates |
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Definition
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Term
| which of the following is not required to be approved by USCG before being used on inspected vessels |
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Definition
| steel plate used in hull construction |
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Term
| a vessel is constructed with a steel hull and aluminum superstructure, what statement is true |
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Definition
| the aluminum structure is usually attached to a steel coaming by a method that insulated the two metals |
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Term
| the term strake is used in reference |
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Definition
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Term
| the strake on each side of the keel is called the |
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Definition
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Term
| in vessel construction the garboard strake is |
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Definition
| located next to and parallel to the keel |
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Term
| another name for the garboard strake is the |
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Definition
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Term
| to reduce the number of strakes at the bow two strakes are tapered and joined at their ends by a single plate. this plate is the |
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Definition
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Term
| owing to the greather girth of a ship amidships than at the ends certain strakes are dropped as they approach the bow and stern to reduce the amount of plating at the ends. these strakes are called |
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Definition
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Term
| as the prop turns voids are formed on the trailing and leading edges of the propeller blades causing a low in propulsive efficiency pitting of the blades and vibration tese voids are called |
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Definition
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Term
| the distance that a ship moves forward with each revolution of its propeller is called |
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Definition
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Term
| which of the following statements about a tunnel bow thruster is true |
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Definition
| it provides lateral control without affecting headway |
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Term
| ordinarily the use of the bow thruster becomes ineffective |
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Definition
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Term
| which statement about tunnel bow thrusters fitted to large vessels is true |
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Definition
| when going astern at slow speed they provide effective steering control |
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Term
| circular steel structures that are installed around the propeller of a towboat are the |
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Definition
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Term
| kort nozzles are installed around the prop of some vessels to |
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Definition
| increase thrust of the propeller |
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Term
| a kort nozzle refers to a |
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Definition
| hollow tube surrounding the propeller used to improve thrust |
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Term
| the ratio of the height of a vessels rudder to its width is referred to as the |
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Definition
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Term
| a contra-guide is a type of |
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Definition
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Term
| the projecting lugs of the rudderpost wich furnish support to the rudder are called the |
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Definition
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Term
| the term pintle and gudgeon are associated with the |
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Definition
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Term
| the horizontal flat surfaces where the upper stock joins the rudder are the |
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Definition
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Term
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Definition
| void or empty space separating two tanks |
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Term
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Definition
| made by placing two bulkheads a few feet apart |
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Term
| the perforated elevated bottom of the chain locker which prevents the chains from touching the main locker bottom and allows seepage water to flow to the drains is called |
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Definition
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Term
| flame screens are used to |
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Definition
| prevent flames from entering tanks |
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Term
| which statement is true concerning protection of double bottom tanks against excessive pressure |
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Definition
| the total area of the vents or the overflow shall be at least 125% the area of the fill line |
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Term
| what is used to prevent accidental flooding of a double bottom tank in the event of a pipe rupture due to collision |
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Definition
| a separate line fitted with a non return valve must be provided for each tank |
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Term
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Definition
| prevents sparks from getting out of an engines exhaust system |
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