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When steam is being raised on a boiler, the water level will normally _____.

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seeing, raised   watching, being raised   looked at, rising   noticing, rising  
heating   being heated   heated   to heat  
Being born; having raised    Born; raised    Was born; was raised    Born; was raised  
Heated    Heating    Being heating    to heat  
raised  having raised  raising  being raised  
gives out  gives up  gives off  gives in  
raising    rising    being risen    being raised  
Ball float  Thermostatic  Bimetallic  Impulse  
gives in  gives up  gives off  gives away  
raising    risen    raised    being raised  
Being raised    Raising    Raised    To raise  
raise    raising    be raised    being raised  
Born; raised    Being born; having raised    Was born; was raised    Born; raising  
risen    raising    being raised   being rose  
rise when the steam pressure is increased  remain constant as long as the feed pump operates  fall when the steam pressure is decreased  vary as the steam demand changes  
gives out  gives up  gives off  gives in  
not good  good  better  the best  
to raise    to be raised    being raised    be raised  
gives up large amount of heat  gives off large amount of heat  gives up large amount of steam  gives off large amount of steam  
turns  turned  turning  being turned  

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