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When the water produced from most evaporator is supplied for drinking purpose, it must be treated t...

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to decrease scale formation  for better cooling effect  for more economical purpose  to raise vacuum  
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more sealing water is needed  the cover clamp needs tightening  the purifier has a bad vibration when started  water is discharged from the overflow line  
Fresh water may be obtained from fish  lifeboat covers or canopies should be washed with rain before drinking water iscollected  Fresh water may be collected from condensation inside the life-raft  Freshwater cannot be produced from standing seawater  
water discharges from the indicator cocks  no water is leaking into crankcase  no water in the scavenge belt  the rpm is lower than the speed of Dead Slow Ahead  
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when the Industrial Revolution started  when goods began to be produced in great quantities  because trains replaced men in carrying goods around  as attention was shifted from distribution to production  
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