Sanitarian Test Study Guide Part 1 Questions With Complete Solutions

The overturning of deep lakes and impounding reservoirs is a common seasonal occurrence caused by: correct answer: Difference in temperature of top and bottom layers of water Vents on reservoirs, clearwells, etc should be: correct answer: Screened What type of primary inspection must meat be subjected to in order to be considered approved? correct answer: USDA or OSDA What do water treatment filters reduce? correct answer: Turbidity Inlets or gates should be located in a reservoir intake so that close gap water can be taken from? correct answer: At least 3 different depths In treating water for corrosion control, plant adjustments should be made in accordance with results of? correct answer: Alkalinity, pH cacO stability tests Alum is often added in treating water primarily for the purpose of: correct answer: Producing a floc Sedimentation is produced by: correct answer: Low velocity flow across the basin To assure max benefit and reduction of dental cavities, average concentration of fluoride should be maintained at: correct answer: 1.0 ppm In instances where potable water systems are used to provide water for systems carrying non-potable water, what method of connecting the two systems is required? correct answer: A physical separation (air gap) between the two systems In the design of a ventilation system for a chlorine equipment room it must be considered that: corr