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单选题
压缩环与刮油环的搭口间隙数值应该是（）。
A
相同
B
压缩环较大
C
刮油环较大
D
随机型而异
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3个月/6个月B
5个月/6个月C
6个月/12个月D
12/12个月
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单选题You are docking a vessel in a slip which has its entrance athwart the tide.You land the ship across the end of the pier，stemming the tide，preparatory to breaking the ship around the corner.You have one tug to assist．Where would you generally tie up the tug（）.A
Have her on a hawser from the sternB
Tie her up on the inshore bow to hold the ship off the endC
Tie her up on the offshore bowD
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Silence the alarmC
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3.6D
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转速不变，油门开度改变B
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考题
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Call the owner，operator，or terminal supervisorB
Unplug the deck scuppersC
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