Multiple choice question for engineering Set 1 1. Farm water supplies must be protected from surface contamination. Water is usually tested for __________ as an indicator of possible sewage contamination. a) Proteolytic bacteria b) Lipolytic bacteria c) Coliform bacteria d) Psychotropic bacteria 2. Specific gravity of milk at 60ºF is __________. a) 1.022 b) 1.032…

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