Thevessel’squarterislocated（）.
A. abeam
B. deadastern
C. justforwardofthebeamoneitherside
D. oneithersideofthestern
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TheinstantaneousreductioninvoltageofanACgenerator,resultingfromanincreaseinload,andpriortotheautomaticvoltageregulatorcorrectingthesituation,iscalledvoltage（）.
A. droop
B. drop
C. dip
D. regulation
Whatisthebestinstrumentforestablishingasafeworkingareabeforeweldinginaconfinedspace?（）
Anoxygenindicator
B. Acombustiblegasindicator
C. Acombinationcombustiblegasandoxygenindicator
D. Aflamesafetylamp
Atransformerinanelectriccircuitservesto（）
A. generateitsownelectricalpower
B. transformelectricalenergyintomechanicalenergy
C. increaseordecreasecircuitvoltageasrequired
D. convertACcurrenttoDCcurrent
WhatisthemostimportantdifferencebetweenthebowtypeanchorshackleandtheD-typeanchorshackle?（）
A. Thebowtypeshackleprovidesasuperiorconnection
B. TheD-typeshackleisweakerthanthebowtype
C. ThebowtypeshackleisweakerthantheD-type
D. TheD-typeshackleprovidesaninferiorconnection
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