A.25'.2
B.29'.2
C.21'.2
D.30'.8
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A.SL>SG
B.SL=SG
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D.視風(fēng)的順逆而定
A.40',48'
B.36',48'
C.48',40'
D.40',40'
A.23'
B.25'
C.27'
D.30'
最新試題
某輪頂風(fēng)頂流航行,船速18kn,流速2kn,風(fēng)使船減速1kn,計(jì)程儀改正率+8%,0400計(jì)程儀讀數(shù)L1=100'.0,則2h后絕對(duì)計(jì)程儀讀數(shù)L2為()。
某輪在狹水道內(nèi)錨泊,當(dāng)時(shí)水道內(nèi)恒流流速1kn,該輪計(jì)程儀改正率為“0”,則2h后相對(duì)計(jì)程儀讀數(shù)差為()。
某船頂風(fēng)順流航行,船速15kn,流速2kn,2h后相對(duì)計(jì)程儀讀數(shù)差為30'.0,計(jì)程儀改正率ΔL=-10%,則該船實(shí)際航程為()。
某輪順風(fēng)頂流航行,船速18kn,流速2kn,風(fēng)對(duì)船舶航速的影響1kn,計(jì)程儀改正率-8%,0400計(jì)程儀讀數(shù)L1=100'.0,則2h后絕對(duì)計(jì)程儀讀數(shù)L2為()。
有風(fēng)無流時(shí),如計(jì)程儀改正率ΔL=0%,則相對(duì)計(jì)程儀航程(SL)和實(shí)際航程(SG)之間的關(guān)系為()。
某輪順風(fēng)順流航行,船速18kn,流速2kn,風(fēng)對(duì)船舶航速的影響1kn,計(jì)程儀改正率-8%,0400計(jì)程儀讀數(shù)L1=100'.0,則2h后相對(duì)計(jì)程儀讀數(shù)L2為()。
某船順風(fēng)順流航行,船速15kn,流速2kn,2h后相對(duì)計(jì)程儀讀數(shù)差為32'.0,計(jì)程儀改正率ΔL=+5%,則該船實(shí)際航程為()。
某輪頂風(fēng)順流航行,船速18kn,流速2kn,風(fēng)使船減速1kn,計(jì)程儀改正率-8%,0400計(jì)程儀讀數(shù)L1=100'.0,則2h后相對(duì)計(jì)程儀讀數(shù)L2為()。
某輪相對(duì)計(jì)程儀改正率ΔL=0%,L1=110'.5,船速16kn,順風(fēng)順流航行,流速3kn,風(fēng)使船增速1.5kn,2h后計(jì)程儀讀數(shù)L2為()。
某輪頂風(fēng)頂流航行,船速18kn,流速2kn,風(fēng)使船減速1kn,計(jì)程儀改正率-8%,0400計(jì)程儀讀數(shù)L1=100'.0,則2h后相對(duì)計(jì)程儀讀數(shù)L2為()。