Coliform - Study guides, Class notes & Summaries

Virulence: mycolic acid in cell wall causes slow growth, protection from lysis once bacteria are phagocytized, capacity for intracellular growth, resistance to Gram-staining, detergents, many antimicrobial drugs, and dessication - Mycobacterium Tuberculosis Unique properties: grows very slowly, can live within macrophages, tuberculin skin test--positive when red swelling appears, BCG vaccine is used in countries w/ lots of TB cases, effective on 80% of children and 20-50% of adults, cord fact...

According to the Safe Drinking Water Act the basic definition of a public water supply system is any water system that supplies water for human consumption that serves: - 15 service connection or over 25 persons for over 60 days a year What federal law regulates public water supplies? - Safe Drinking Water Act What cause water to move through pores in soil and rocks ? - Gravity What are disease producing bacteria called? - Pathogenic A presence/absence coliform test utilizes - color change...

Wastewater Practice Test (Florida) English Exam Questions With Correct Answers. According to FDEP chapter 62-600.440 (4) (b) FAC, basic level disinfection is described as: - answerA chlorine residual of 0.5 mg/L for 15 minutes at peak hourly flow FDEP chapter 62-604.550 (a) FAC, requires a wastewater spill shall be verbally reported to the state warning point no later than: - answer24hrs from discovery What is the 'rule of thumb' regarding pump packing? - answerNever put rings of new...

REHS Exam Questions with A Grade Solutions Which of the following organisms are most resistant to unfavorable environmental conditions and indicate past of possibly intermittent pollution? a. fecal streptococci b. eschericha coli c. aerobacter aerogenes d. clostridium sporulates - Answer-clostridium sporulates The presence of which of the following is most easily identified by laboratory analysis in water contaminated by feces? a. shigella dysenteriae b. coliform c. entamoeba h...

Milk Quality and Products CDE Questions and Answers Already Passed The milk fat differential used in paying for raw milk is: The price to be added or subtracted per 1/10 % of milk fat above or below set percentage. The form of mastitis that is hidden from sight is known as Sub-Clinical What is the best way to control contagious mastitis? Germicidal Teat Dip The Standard Plate Count has a prescribed incubation time of how many hours at what temperature? 48 hours at 32 degrees cel...

Microbiology Quiz 4 Lab 9 and 10 Latets Update Graded A+ What are Coliform bacteria? Gram negative non spore forming bacteria that are capable of fermenting lactose to produce acid and gas. What fecal coliform bacteria is used as an indicator species? E. coli. (If E. coli is present than this suggest that serious pathogens such as Salmonella and Campylobacter species are also present as well.) Does every food from the FDA get tested? No, unless an outbreak occurs What are the m...

State Agency responsince for enforcing the safe drinking water act in Texas Texas Commission on environmental Quality What minerals can cause water hardness Calcium and magnesium A public water system must at all times provide Adequate quantity of water, pressure, and disinfection A source groundwater would be aquifer Fecal coliform organisms sometimes found in water supplies are an indication that Water supply is contaminated, harmful bacteria may be present, possible pathogenic organi...

Which of the following organisms are most resistant to unfavorable environmental conditions and indicate past of possibly intermittent pollution? a. fecal streptococci b. eschericha coli c. aerobacter aerogenes d. clostridium sporulates - clostridium sporulates The presence of which of the following is most easily identified by laboratory analysis in water contaminated by feces? a. shigella dysenteriae b. coliform c. entamoeba histolytica d. salmonella typhosa - coliform Which of the...

______ means the Wake County department of human services director or his/her authorized representative. - ANSWER-Director _____ means the certified pool operator who is responsible for the daily operation of a public swimming pool - ANSWER-operator _____ means the owner of the swimming pool or the responsible management company - ANSWER-Owner _____ _____ means the interior of the fenced area around a swimming pool including the pool itself, toilets, bathhouses, equipment enclosures, ch...

CWEA Grade I Laboratory Analyst, questions and answers 2023 Chloride - Major anion found in many natural waters - Can impart salty taste in H2O What increases concentration of chloride in wastewater Chloride in human diet and softeners flushed into sanitary sewer system 2 most prevalent methods of measuring chloride argentometric and mercuric nitrate Argentometric Titration of sample with standard solution of silver nitrate (AgNO3) - Indicator: Chromate ions (CrO4) -...