When a flash-type evaporator is to be secured for an extended period of time, the entire unit should be drained, cleaned, and （）.
1、When a router is connected to a Frame
When a router is connected to a Frame Relay WAN link using a serial DTE interface, how is the interface clock rate determined（）。AIt is sup...
2、On a multistage flash-type evaporator,
On a multistage flash-type evaporator, the flash chamber is （）Acombined as part of the salt water feed heaterBthe open area above the brine ...
3、When a ship is entering to shallow wat
When a ship is entering to shallow water, ship resistance will be increased and the speed of main engine reduced.Due to the function of the ...
4、When it is necessary to open a refrige
When it is necessary to open a refrigeration system for repairs and the system will be open for more than a few minutes, the open ends of the system should be （）.AdehydratedBpurgedCpluggedDevacuated
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When it is necessary to remove a victim from a life threatening situation，the person giving first aid must ().APull the victim by the feetBAv...
6、When securing a flash-type evaporator
When securing a flash-type evaporator for an extended period of time, you should （）.Afill the unit with saltwaterBfill the unit with de-scaling compoundCcompletely drain the unitDtightly seal the unit to exclude air