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ship construction objective questions with answers part 3 | Buoyancy | Naval Architecture
ship construction objective questions with answers part 3Uploaded by Rafi JacksonRelated InterestsBuoyancyNaval ArchitectureWater TransportShipsWatercraftRating and Stats0.0 (0)Document ActionsDownloadShare or Embed DocumentEmbedDescription: ship construction objective questions with answers part 3View Moreship construction objective questions with answers part 3Copyright: Attribution Non-Commercial (BY-NC)Download as DOC, PDF, TXT or read online from ScribdFlag for inappropriate contentShip construction1) The usual depth of a beam bracket is __________. A) 2 1/2 times the depth of the beam B) 5 times the depth of the beam C) 10 times the depth of the beam D) same depth as the beam 2) A deck beam does NOT __________. A) act as a beam to support vertical deck loads B) lessen the longitudinal stiffness of the vessel C) act as a tie to keep the sides of the ship in place D) act as a web to prevent plate wrinkling due to twisting action on the vessel 3) The deck beam brackets of a transversely framed vessel resist __________. A) hogging stresses B) sagging stresses C) racking stresses D) shearing stresses 4) Beams are cambered to __________. A) increase their strength B) provide drainage from the decks C) relieve deck stress D) All of the above 5) Which term refers to a transverse curvature of the deck? A) Deadrise B) Camber C) Freeboard D) Flare 6) A carling is used aboard ship __________.
D) Pocketing occurs at small angles of inclination when a tank is 98% full. 145)which statement about the free surface correction is TRUE? A) It is added to GM at light drafts and subtracted at deep drafts. B) It is increased if the slack tank is not on the centerline. C) It is decreased if the slack tank is below the KG of the vessel. D) The correction decreases as the draft increases due to loading dry cargo. 146)Which statement about the free surface effect is TRUE? A) It has the same affect on initial stability whether the tank is 75% full or 25% full. B) The free surface effect usually increases at angles of heel above 25°. C) The effect increases if the tank is off the centerline. D) The effect can be reduced by shifting weights vertically. 147)Which statement about the free surface correction is TRUE? A) It is added to GM at light drafts and subtracted at deep drafts. B) It is increased if the slack tank is not on the centerline. C) It is decreased if the slack tank is below the KG of the vessel. D) The correction decreases as the draft increases 148)A vessel is equipped with cross-connected deep tanks. In which situation should the cross-connection valve be closed? A) The tanks lie above the waterline and are filled. B) The tanks are partially filled with dry cargo. C) The tanks are partially filled with liquid cargo. D) The tanks are filled and lie below the waterline. 149)What is the definition of transverse metacenter? A) The distance between the actual center of gravity and the maximum center of gravity that will still allow a positive stability.
B) center of flotation C) uncorrected height of the center of gravity of the vessel D) center of gravity of the vessel corrected for free surface effects 288)The static stability curve for a given vessel peaks at 34°. For this ship, the danger angle for a permanent list would be about __________. A) 8.5° B) 17° C) 34° D) 51° 289)An upright vessel has negative GM. GM becomes positive at the angle of loll because the __________. A) free surface effects are reduced due to pocketing B) KG is reduced as the vessel seeks the angle of loll C) effective beam is increased causing BM to increase D) underwater volume of the hull is increased 290)A vessel is "listed" when it is __________. A) down by the head B) down by the stern C) inclined due to off-center weight D) inclined due to wind 291)A vessel is "listed" when it is __________. A) inclined due to an off-center weight B) inclined due to the wind C) down by the head D) down by the stern 292)In the absence of external forces, adding weight on one side of a floating vessel causes the vessel to __________.
D) point of application 361)Aboard a vessel, dividing the sum of the longitudinal moments by the total weight yields the vessel's __________. A) inclining moments B) righting moments C) vertical moments D) longitudinal position of the center of gravity 362)A vessel is inclined at an angle of loll. In the absence of external forces, the righting arm (GZ) is __________. A) positive B) negative C) zero D) vertical 363)The difference between the forward and aft drafts is __________. A) list B) heel C) trim D) flotation 364)The TCG of a vessel may be found by dividing the displacement of the vessel into the __________. A) transverse center of gravity of the vessel B) sum of the vertical moments of the vessel C) sum of the transverse moments of the vessel D) transverse baseline of the vessel 365)The TPI curve, one of the hydrostatic curves in a vessel's plans, gives the number of tons __________ A) necessary to change the angle of list 1° at a given draft B) necessary to change trim 1 inch at a given draft
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