reduce the free surface effect and raise the KG
not have any effect on free surface and raise the KG
reduce the free surface effect and lower the KG
not have any effect on free surface and lower the KG
第1题：
Stack is quite simple. Many computer systems have stacks built into their circuitry. They also have machine-level instructions to operate the hardware stack. Stack is(73)in computer systems.
A．useless
B．not important
C．simple but important
D．too simple to be useful
第2题：
The Authority reserves the right not to accept ______ for pilots by vessels in anchorages if the vessels have not reported their anchored position.
A.bookings
B.commands
C.orders
D.Reports
第3题：
A. which
B. that
C. this
D. that
第4题：
Which statement about tunnel bow thrusters fitted to large vessels is TRUE ________．
A.They are effective on most vessels at speeds up to 10 knots
B.Because of their location，most modern installations have as much power as a tug
C.They are fully effective at all drafts
D.When going astern at slow speed，they provide effective steering control
第5题：
The capacity of the segregated ballast tanks shall be ______ determined that the ship may operate safely on ballast voyages without recourse to the use of cargo tanks for water ballast except as provided otherwise．
A.Such
B.As
C.So
D.Well
第6题：
A. who of
B. of them
C. of whom
D. from which
第7题：
There is a ______ when one or more vessels are towing or pushing another vessel or vessels，provided that they are all involved in commercial activities and not in a salvage operation．
A.private safety
B.private maritime adventure
C.common safety
D.common maritime adventure
第8题：
A.when
B.where
C.that
D.which
第9题：
The venting system shall be provided with devices to prevent the passage of ______ into the cargo tanks．
A.flame
B.inert gas
C.air
D.oil gas
第10题：
材料：
The crude oil washing installation and associated equipment and arrangements shall comply with the requirements established by the Administration．
Such requirements shall contain at least all the provisions of Specifications for the Design，Operation and Control of Crude Oil Washing Systems adopted by the International Conference on Tanker Safety and Pollution Prevention，1978，in Resolution 15 and as may be revised by the Organization．
An inert gas system shall be provided in every cargo tank and slop tank in accordance with the appropriate Resolutions of Chapter II-2 of SOLAS．
With respect to the ballasting of cargo tanks，sufficient cargo tanks shall be crude oil washed prior to each ballast voyage in order that，taking into account the tanker&39;s trading pattern and expected weather conditions，ballast water is put only into cargo tanks which have been crude oil washed. Every oil tanker operating with crude oil washing systems shall be provided with an Operations and Equipment Manual detailing the system and equipment and specifying operational procedures．Such a Manual shall be to the satisfaction of the Administration and shall contain all the information set out in the Specifications referred to in this Regulation．If an alteration affecting the crude oil washing system is made，the Operations and Equipment Manual shall be revised accordingly．
问题：
According to this passage，with respect to the ballasting of cargo tanks，ballast water is put only into ________．
A.slop tanks which have been cleaned with water
B.gas freed cargo tanks
C.inertized cargo tanks
D.cargo tanks which have been crude oil washed
________ shall be approved by the Administration．A.Specifications for the Design，Operation and Control of Crude Oil Washing Systems
B.Appropriate Resolutions of Chapter II-2 of SOLAS
C.An Operations and Equipment Manual detailing the crude oil washing system and equipment and specifying operational procedures
D.International Conference on Tanker Safety and Pollution Prevention，1978
This paragraph is most likely extracted from________．A.MARPOL 73/78
B.SOLAS
C.IBC
D.IGC
It can be concluded that ________．A.it is not necessary to do crude oil washing prior to ballast voyage
B.taking into account the tanker's trading pattern and expected weather conditions，it is sometimes necessary to do crude oil washing after each ballast voyage
C.if it is possible ballast water shall always be put into cargo tanks prior to commencing their crude oil washing operations
D.sufficient cargo tanks shall be crude oil washed prior to each ballast voyage in order that the tanker could be kept properly ballasted without breaking any regulations in connection with ballasting of cargo tanks
请帮忙给出每个问题的正确答案和分析，谢谢！