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eatias eatias
wrote...
Posts: 763
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6 years ago
When used with a smooth bore nozzle, a nozzle control valve that causes turbulence when partially open which can affect the quality of a fire stream is the:
 
  A. ball valve.
  B. slide valve.
  C. standpipe valve.
  D. rotary control valve.
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wrote...
6 years ago
A
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