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单选题
A mooring system that results in a spread system without anchor buoys is called a（）.
A
permanent chasing system
B
wire rope mooring system
C
shepherd's crook mooring system
D
spring buoy mooring system
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单选题Survival practice in the mooring system is to slack off the tensions on the leeward side and（）.A
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单选题A purge recovery system is used in a centrifugal air conditioning or refrigeration system to （）A
purge lube oil from the liquid refrigerantB
recover water purged from the systemC
separate foul gases from the receiverD
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考题
单选题The most doubtful and unpredictable factor in a mooring system is the（）.A
ability of the anchors to hold in a seabedB
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考题
单选题Given the same water depth and line tension，the holding power of a 19 pound/foot wire rope mooring system in comparison to the holding power of a 90 pound/foot chain mooring system will be（）.A
weakerB
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greaterD
indeterminable
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单选题Connecting elements of a mooring system should be fabricated from（）.A
cast ironB
forged steelC
stainless steelD
cast steel
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单选题Blocking open or removing fire dampers can cause（）.A
fixed foam systems to be ineffectiveB
faster cooling of the fireC
the accumulation of explosive gasesD
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单选题Without permission of（）, a ship earth station can not enter the system.A
ITUB
IMOC
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单选题In a storm，the leeward lines of a ship’s mooring system will（）.A
pull the unit in the same direction that the weather is pushing itB
pull the unit in the opposite direction that the weather is pushing itC
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affect the unit's draft and inclination as maximum mooring tensions are reached
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