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单选题
Routine maintenance on a Central Control Room hermetically sealed air conditioning unit should include （）
A
changing the air filter
B
recharging the system
C
changing compressor lubricant
D
renewing container vacuum
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It was believed before 1980s that the government should play the central role in the promotion and maintenance of the social prosperity.()
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Operation of the valve control release on a fixed CO2 system must immediately ______.A.release CO2 to the protected spaceB.secure all mechanical ventilation in the protected spaceC.sound the rig’s general alarm signal for a fireD.sound an alarm in the ballast control room
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单选题If the main engine of an unattended engine room shuts down automatically, it will be indicated by an alarm （）.A
at each control stationB
in the chief engineer’s quartersC
in the captains quartersD
All of the above are correct
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单选题Control of the main propulsion diesel engines can be shifted from the engine room to the wheelhouse from the （）.A
wheelhouse control stationB
engine room control stationC
captains officeD
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单选题Operation of the valve control release on a fixed CO2 system must immediately（）.A
release CO2 to the protected spaceB
secure all mechanical ventilation in the protected spaceC
sound the rig's general alarm signal for a fireD
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单选题The SOLAS convention about “passenger ship and dried food ship damage control” prescribes that the engine room emergency bilge water suction should connect with （）A
the main S-W pumpB
ballast pumpC
air-conditioning water pumpD
the main S-W pump or ballast pumps that have the biggest output
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单选题I hereby request permission to（）the ship hull for routine maintenance.A
operateB
repairC
oilD
paint
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单选题In order to release CO2 to the machinery spaces from a fixed fire extinguishing system, you must（）.A
actuate an alarm and open the engine room control valveB
actuate an alarm and open the engine room CO2 releasing valveC
open the engine room control valve and shut off engine room ventilation fansD
open the engine room control valve and then the CO2 releasing valve
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单选题I hereby request permission to（）the ship hull for routine maintenance.A
put paint onB
apply paint ontoC
oilD
paint
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单选题Main diesel engine control can be obtained by the bridge （）A
at any timeB
only after the engine room control station is switched to ‘bridge control’C
whenever the secondary station is switched to ‘bridge control’D
whenever the engine side control station is switched to ‘bridge control’
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多选题Which two statements are true with respect to the maintenance window？（） .AA DBA can enable or disable an individual task in all maintenance windows.BA DBA cannot change the duration of the maintenance window after it is created.CIn case of a long maintenance window，all Automated Maintenance Tasks are restarted every four hours.DA DBA can control the percentage of the resource allocated to the Automated Maintenance Tasks in each window
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单选题Routine maintenance of lead acid batteries should include （）.A
keeping the terminals cleanB
coating cable connections with petroleum jellyC
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All of the above
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单选题I（）having your approval for the routine maintenance at your earliest convenience.A
hope toB
want toC
look forward toD
expect to
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单选题SOLAS requires a lifesaving training manual be provided in each crew cabin or in the（）.A
bridgeB
engineering control stationC
recreation and messroomsD
fire control room
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单选题You are advised to rise with a yawn and stretch because it will _____.A
help you to keep your energy for the day's workB
help you to control your temper early in the dayC
enable you to concentrate on your routine workD
keep your energy cycle under control all day
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单选题I hereby request permission（）the ship’s main engine for routine maintenance.A
immobilizeB
to immobilizeC
immobilizationD
immobilizing
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单选题Which of the routine maintenance procedures listed is required for starting air receivers?（）A
over-speedingB
overloadC
low exhaust temperatureD
high crankcase pressure
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单选题Which of the following is NOT the purpose of America’s central bank?A
Controlling the flow of money in the economy.B
Overseeing the activities of banks.C
Producing and distributing bank notes and coins.D
Contributing to the maintenance of a stable financial system.
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单选题Where are the life-jackets for the duty personnel?（）A
They are in the chief officer’s cabin.B
They are in the store room.C
They are in the control room.D
They are in the engine room.
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