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Certification corner
Publication year - 1981
Publication title -
opflow
Language(s) - English
Resource type - Journals
eISSN - 1551-8701
pISSN - 0149-8029
DOI - 10.1002/j.1551-8701.1981.tb00735.x
Subject(s) - certification , circuit breaker , turbidity , chlorine , environmental science , computer science , engineering , materials science , geology , mechanical engineering , metallurgy , political science , oceanography , law
This month's “Certification Corner” presents questions on the hydrologic cycle, circuit breaker operation, turbidity analyses, mud balls, dissolved oxygen content, record keeping, causes of water hardness, water density, and chlorine usage calculations.