单选

General requirements for a vessel's radiotelephone station log are that ().

  • A.logs must be kept in an orderly manner
  • B.erasures are not allowed
  • C.it must identify the vessel's name and official number
  • D.All of the above
参考答案
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All ships shall carry on board the following certificates except ______.

  • A.International Ship Security Certificate(ISSC)or Interim InternationalShip Security Certificate
  • B.Ship Security Plan and associated records
  • C.Continuous Synopsis Record(CSR)
  • D.Dangerous goods manifest or stowage plan

General requirements for a vessel's radiotelephone station log are that ().

  • A.logs must be kept in an orderly manner
  • B.erasures are not allowed
  • C.it must identify the vessel's name and official number
  • D.All of the above

Before entering the chain locker,you should ()

  • A.have someone standing by
  • B.make sure there is sufficient air within the locker
  • C.de-energize the windlass
  • D.All of the above

The Certificate of Inspection for a containership ______.

  • A.is issued by the Coast Guard and is usually valid for 2 years
  • B.must be posted under transparent material near the officers' licenses
  • C.lists all of the stability limitations and conditions imposed on the vessel
  • D.shows the due date of the quadrennial test of the cargo gear

Pitching is angular motion of the vessel about what axis ().

  • A.Longitudinal
  • B.Transverse
  • C.Vertical
  • D.Centerline

In the absence of external forces,the center of buoyancy of an inclined vessel is vertically aligned directly below the ().

  • A.Center of gravity
  • B.Amidships station
  • C.Center of flotation
  • D.Geometric center of the waterplane area

If the towline parts,you should ().

  • A.Start towing by pushing ahead
  • B.Abandon the towing vessel
  • C.Retrieve the tow bridle
  • D.Relieve strain on the retrieving line

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

The purpose of fuses in electric wiring is to ().

  • A.allow for cutting out branch circuits
  • B.prevent overloading the circuits
  • C.reduce voltage to the branch circuits
  • D.permit the use of smaller wiring for lighting circuits

When a tug is in irons,she ().

  • A.Is made fast to the dock with engines secured
  • B.Is in dry dock
  • C.May be in danger of being overrun by her tow
  • D.Should pay out more towline
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