【名词&注释】
发动机、救生艇(boat)、先导型减压阀、装卸货物(cargo handling)
[单选题]During bunkering, the request for stoppage of pumping shall be made, as a rule, 5 minutes ______.
A. ago
B. before
C. ahead
D. front
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举一反三：
[单选题]船舶在港内停靠装卸货物(cargo handling)期间，地面通信系统的组合电台应处于_____。
A. 开启工作状态
B. 关闭状态
C. 开启但不发射
D. 可进行设备调试的状态
[单选题]救生艇发动机应能在艇离水，冷态启动后运转不少于：
A. 3分钟
B. 5分钟
C. 1分钟
D. 2分钟
[单选题]Any increase in the exhaust back pressure of a four-stroke/cycle diesel enginewill( ).
A. reduce engine horsepower output
B. aid in silencing the exhaust noise
C. increase the mean effective pressure
D. contribute to effective cylinder scavenging
[单选题]If the diesel engine fuel injection timing is changed to delay the start of injection until the pistons are at top dead center, the engine will_________.
A. backfire through the air intakes
B. develop less power under load
C. have high firing pressures
D. lift its cylinder relief valves
[单选题]钩在甲板上使用，如有斜度，应使钩尖朝：()
A. 上
B. 下
C. 左
D. 右
[单选题]先导型减压阀出口油压调不高不会是________。
A. 主阀阻尼孔堵
B. 主阀弹簧失去弹力
C. 主阀阀盖漏泄
D. 导阀打不开
[单选题]疑似肝炎病人应隔离，卧床休息，隔离日至少______天。
A. 21
B. 7
C. 14
D. 5
[单选题]由热水、蒸汽等单纯高温造成的局部组织损害叫()
A. 烧伤
B. 灼伤
C. 烫伤
D. 擦伤
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