测深管（）
第1题：
According to this passage, if the cylinder non-return valve were not leaky
A.an explosion would not be caused
B.there still would be a danger of explosion
C.oil would not deposit in the air pipe
D.pipe lines would not have to be drained
第2题：
A heavy，thick-walled tube，usually steel，used between the drill pipe and the bit in the drill stem to weight the bit in order to improve its performance is called a ______.
A.heavy-walled drill pipe
B.tool joint
C.down hole tool
D.drill collar
第3题：
●In the following，which is not a method for inter-process communication? (73)
(73) A． share memory
B．message
C．pipe
D．memory copy
第4题：
第5题：
Tonnage openings must be closed by means of ______．
A.Press board
B.Steel hatch boards
C.Steel plates
D.Wooden hatch boards
第6题：
________ are to be used for dunnage if you load rice．
A.Wooden planks
B.Rush mats
C.Steel bars
D.Wooden planks and rush mats
第7题：
The opening in the deck beneath the anchor windlass that leads to the chain locker is the ______．
A.Hawse pipe
B.Fall pipe
C.Drop-pipe
D.Spill pipe
第8题：
A、fork
B、pipe
C、exit
D、read
第9题：
The exhaust pipe must be gas tight throughout its entire length otherwise ______．
A.Bilge water may enter the exhaust pipe
B.Entry of air may cause vapor lock
C.Carbon monoxide may enter the interior of the vessel
D.The joint gaskets may be blown
第10题：