航海英语港口国检查文件及报告（PSC）单项选择题每日一练(2019.05.04)

单项选择题
While proceeding to a distress site，you hear the words “Seelonce mayday” on the radiotelephone.Which action should you take（）.
A.Resume base course and speed as your assistance is no longer required
B.Acknowledge receipt and advise your course，speed，and ETA
C.Relay the original distress message as no other vessel has acknowledged it
D.Monitor the radiotelephone but do not transmit
单项选择题
The fog is lifted，so（）the radar．
A.close
B.open
C.switch off
D.switch on
单项选择题
Temporary Certificates of Inspection for offshore drilling units are effective until the （）.
A.Operations Manual is approved
B.Minerals Management Service approval is issued
C.classification society approval is issued
D.permanent Certificate of Inspection is issued
单项选择题
（） may not justify detention.
A.significant areas of damage or corrosion
B.pitting of plating and associated stiffening in decks
C.pitting of hull affecting seaworthiness or strength to take local loads
D.the condition of such items as ladder ways，guard-rails，pipe coverings
单项选择题
The consistent winds blowing from the horse latitudes to the doldrums are called the（）.
A.prevailing westerlies
B.polar easterlies
C.trade winds
D.roaring forties