一起答
单选

Cribbing is ______.

  • A.wooden blocks or dunnage placed between a deck load and the deck
  • B.the chains and shackles used to secure a deck cargo
  • C.a crate in which a deck cargo is packaged
  • D.cardboard separation pieces placed between deck loads to prevent chafing
参考答案
查看试卷详情
相关试题
  1. Diesel engines are considered safer than gasoline engines because ______.

    • A.they are more heavily built
    • B.the fuel used is less volatile
    • C.they can be easily reversed
    • D.they operate at a lower speed
  2. Deviation is caused by ______.

    • A.changes in the earth’s magnetic field
    • B.nearby magnetic land masses or mineral deposits
    • C.magnetic influence inherent to that particular vessel
    • D.the magnetic lines of force not coinciding with the lines of longitude
  3. Deviation is the angle between the ______.

    • A.true meridian and the axis of the compass card
    • B.true meridian and the magnetic meridian
    • C.magnetic meridian and the axis of the compass card
    • D.axis of the compass card and the degaussing meridian
  4. Deviation which is maximum on intercardinal compass headings may be removed by the___.

    • A.Flinders bar
    • B.transverse magnets
    • C.fore-and-aft magnets
    • D.soft iron spheres on the sides of the compass
  5. Deficient oxygen content inside a chain locker can be detected with ______.

    • A.litmus paper
    • B.a combustible gas indicator
    • C.an oxygen breathing apparatus
    • D.an oxygen indicator
  6. Deviation in a compass is caused by the ______.

    • A.vessel’s geographic position
    • B.vessel’s heading
    • C.earth’s magnetic field
    • D.influence of the magnetic materials of the vessel
  7. Deballasting a double bottom has what affect on KG? ______.

    • A.KG is increased
    • B.KG is decreased
    • C.KG is not affected
    • D.KG increases at light drafts and decreases at deep drafts
  8. Deep draught vessels may have to make use of the height of tide in order to have a safe under keel clearance in areas where depths are______.

    • A.sufficient
    • B.normal
    • C.abnormal
    • D.Critical
  9. Defense plans may cause the operation of electronic aids to navigation to be suspended with

    • A.no notice
    • B.one day’s notice
    • C.a week’s notice
    • D.thirty (30) days notice
  10. Damage to ship’s fittings caused by stevedore’s negligence often happens. Therefore, thestevedores ______ the cost of the damage repaired afterwards.

    • A.should hold responsible for
    • B.should be held responsible for
    • C.should be free of
    • D.should be bearable of