A fairly accurate estimation of a ship’s position can be calculated by a technique know as ___.A.dead reckoningB.pilotageC.great circle sailingD.geographic navigation
A fairly accurate estimation of a ship’s position can be calculated by a technique know as ___.
A.dead reckoning
B.pilotage
C.great circle sailing
D.geographic navigation
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单选题What describes an accurate position that is NOT based on any prior position? （）ADead-reckoning positionBEstimated positionCFixDRunning fix
单选题The technique of “asking the audience questions” is “unpredictable” because _____.Ayou can’t predict the way in which the questions developBwhether the audience will be glad to participate is unknownCyou can’t know how much should be prepared to fill in the gapsDthe “conversation” style may make the presentation out of order
单选题（）is a term denoting the determination of a ship’s position by observations of Celestial or terrestrial objects，or by a combination of both．ACourse-planningBPosition-fixingCRadar-plottingDStowage-plan making
单选题By plotting the analysis messages on weather charts，we are able to（）.Aprevent any possible accident at seaBprepare a reasonable forecast of the wind and weatherChelp the mariner to fix a accurate ship's positionDaid the salvage of a ship in peril
单选题A high-velocity fog stream can be used in fire fighting situations to drive heat and smoke ahead of the fire fighters in a passageway. This technique should only be used when（）.Ausing a 2-1/2 inch hoseBthere is an outlet for the smoke and heatCthe fire is totally contained by the ship's structureDat least two fog streams can be used
单选题The apparent wind can be zero when the true wind is from（）.Aahead and equal to the ship's speedBastern and equal to the ship's speedCahead and equal to twice the ship's speedDastern and equal to twice the ship's speed
单选题Since accumulations of H2S gas on a ship can be dangerous to personnel，it is important to know that H2S gas is（）.Alighter than airBheavier than airCa yellow gas that is easily recognizedDmildly toxic
单选题A fairly accurate estimation of a ship’s position can be calculated by a technique known as（）.Adead reckoningBpilotageCgreat circle sailingDgeographic navigation
单选题All event relating to the voyage,such as ship’s position,speed and details of the weather, are recorded in（）.AlogbookBBell bookCoil record bookDcompass error book
单选题Where does the look-out man stand?（）.AIn positions in which the noises in the ship are least likely to interfere with the hearing of a fog signal and the man can see clearlyBIn positions in which the noises in the ship are much likely to interfere with the hearing of a fog signalCIn positions in which the hearing of a signal is reduced to a minimumDIn a position in which the man can see clearly
单选题Your assigned emergency station aboard ship can be found on the ship’s （）Astation billBclearance papersCcertificate of inspectionDpermit to proceed
单选题What is NOT an advantage of the house-fall system when compared to a married-fall system using two of the ship’s booms? （）AThere is a steady spotting area under the dockside blockBLoading can be accomplished from a narrow apron without endangering the inboard boomCThe system can be used for working the second deck of a warehouseDThere is more accurate control of cargo drafts required to be stowed in the wings
单选题The advantage of geostationary satellites is（）.Athe range of antenna can cover everywhere in the worldBwe can know the ship’s exact positionCthat the distress alert can be located as soon as possibleDantenna of permanent earth stations may be directed towards fixed points in the sky
单选题One of the best features of the journalist’s lifestyle is you never know what’s next.Ayou never know what’s nextBit’s so unpredictableCthat you never know what’s nextDone can never predict what’s nextEits unpredictability
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单选题When out of sight of land, a ship’s position can be found by using（）.Athe coastal navigationBthe celestial navigationCtraditional navigationDthe great circle navigation