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下面关于ENG VALVE CLOSE灯的说法正确的是（）
- A、这是发动机梁活门的指示灯
- B、活门打开时该灯灭
- C、活门打开时该灯明亮
- D、活门打开时该灯暗亮
参考答案
更多 “下面关于ENG VALVE CLOSE灯的说法正确的是（）A、这是发动机梁活门的指示灯B、活门打开时该灯灭C、活门打开时该灯明亮D、活门打开时该灯暗亮” 相关考题
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If the head pressure of a reciprocating refrigeration compressor is excessiveA.the relief valve should open before the high pressure cutoutB.the relief valve should open and allow the excess refrigerant to flow to the receiverC.the high pressure cutout switch should operate before the relief valve opensD.you should close the discharging valve
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The fitting at the end of a cargo line in a tank that allows suction to be taken close to the bottom of a tank is a ______．A.Suction endB.StrainerC.Bell-mouthD.Vacuum valve
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If the hatch cover does not move, （）should be checked.A、the open valveB、the stop valveC、the steam valveD、the close valve
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当A/THR衔接且起作用时（）A、推力手柄控制ENG且FCU上的A/THR接通灯亮；B、推力手柄控制ENG但FCU上的A/THR接通灯不亮；C、推力系统控制ENG但FCU上的A/THR接通灯不亮；D、推力系统控制ENG且FCU上的A/THR接通灯亮。
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单选题If the hatch cover does not move, （）should be checked.A
the open valveB
the stop valveC
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the relief valve should open before the high pressure cutoutB
the relief valve should open and allow the excess refrigerant to flow to the receiverC
the high pressure cutout switch should operate before the relief valve opensD
you should close in on the suction valve
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open late and close earlyB
open late and close lateC
fail to open when the engine is coldD
fail to open at normal operating temperature
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单选题Excessive valve lash in an auxiliary diesel engine will cause the valves to open（）A
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单选题The simplest method to use for determining if a centrifugal pump is operating as designed, is to （）.A
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use a clamp on ammeter and compare the readings to past records
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closed；short；afterC
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closed；long；before
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