【名词&注释】
发动机、救生艇(boat)、正常人(normal)、救生筏(life raft)、要注意(should be noticed)
[单选题]正常人呼吸次数与心率比例为：
A. 1∶4
B. 1∶6
C. 1∶8
D. 1∶10
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举一反三：
[单选题]Among the basic categories of equipment, which of the following are used to convert the hydraulic energy into linear motion?
A. hydraulic pumps
B. valves
C. hydraulic cylinders
D. hydraulic motors
[单选题]SOLAS公约规定，救生艇机的航速必须满足当载足全部乘员和属具，并且所有发动机驱动的辅助装置均运转时，救生艇在静水中前进航速应至少为_______，而当拖带1具载足全部乘员和属具的25人救生筏或其相等负载时航速应至少为_______。
A. 5kn/1kn
B. 6kn/2kn
C. 8kn/2kn
D. 8kn/3kn
[单选题]救助艇在向航行中的船舶靠泊时在操作上要注意(should be noticed)（）
A. 在船舶的上风舷，船尾附近与船舶保持平行，在船中附近贴靠
B. 在船舶的下风舷，船首附近与船舶保持乎行，在船中附近贴靠
C. 在船舶的上风舷，船首附近与船舶保持平行，在船中附近贴靠
[单选题]The spur geared mooring winches have advantages over worm geared ones in .
A. higher efficiency of the gear train while reversing
B. the higher gear ratio
C. the multi-start feature
D. higher recovering speed
[单选题]Crankcase explosions in propulsion diesel engines result from
A. the splashing of lubrication oil by the crankshaft
B. the dilution of crankcase oil with particles of combustion
C. broken fuel lines spraying oil on the crankcase
D. the ignition of unburned fuel and air in the crankcase
[单选题]下列说法哪个正确？________。
A. 只要两船相互发现，即应执行互见中的行动规则
B. 雾中，当两船接近到即将构成紧迫局面，即使两船互见，也不应执行互见中的行动规则
C. A和B均正确
D. A和B均不正确
[单选题]In fighting a fire in a fuel tank, the FIRST action you should attempt is to _____.
A. secure all sources of fresh air to the tank
B. begin transferring the fuel to other tanks
C. top off the tank to force out all vapors
D. station someone at the fixed CO2 release controls
[单选题]When placed in a magnetic field, which of the materials listed will maintain the highest permeability?( )
A. Glass
B. Bakelite
C. Soft iron
D. Aluminum
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