Pre chlorination Study guides, Class notes & Summaries

Which process converts ammonia to nitrite and nitrate? - CORRECT ANSWERNitrification What is the maximum advisable rate of chlorine gas removal from a 150- pound cylinder? - CORRECT ANSWER-40 pounds per day What is a type of positive displacement water meter? - CORRECT ANSWER-Nutatingdisk meter What is a power-operated mechanism for opening and closing a valve? - CORRECT ANSWER-Actuator What is required if a routine sample test positive for total coliform bacteria? - CORRECT ANSWER-T...

What are the treatment processes in PRELIMINARY Wastewater Treatment? - Screening Comminution Grit Removal Pre-Aeration Flow Metering / Sampling What are the treatment processes in PRIMARY Wastewater Treatment? - Sedimentation / Flotation What are the treatment processes in SECONDARY Wastewater Treatment? - Biological Treatment (ie activated sludge, trickling filters, rotating biological contactor (RBC)) Sedimentation What are the treatment processes in TERTIARY Wastewater Treatment? -...

CPH Exam Practice Test Bank Prep_ Answered_2022. Many people do not attempt to decrease unhealthy behaviors such as overeating or smoking because they lack the confidence that they can successfully change. This is an example of: (A) Perceived susceptibility (B) Perceived severity (C) Perceived self-efficacy (D) Perceived response efficacy The construct of normative beliefs is from which model/theory? (A) Transtheoretical model (B) Theory of reasoned action/planned behavior (C) So...

Water distribution practice exam test 1 already passed!!!! And verified Which process converts ammonia to nitrite and nitrate? - CORRECT ANSWERNitrification What is the maximum advisable rate of chlorine gas removal from a 150- pound cylinder? - CORRECT ANSWER-40 pounds per day What is a type of positive displacement water meter? - CORRECT ANSWER-Nutatingdisk meter What is a power-operated mechanism for opening and closing a valve? - CORRECT ANSWER-Actuator What is required if a rout...

Class A Water Operator Test Questions and Complete Solutions How many Training Hours and experience for a class D Water Operator - Answer: 16 Hours Training and No Experience How many Training Hours and experience for a class C Water Operator - Answer: 36 Hours Training and 1 year Experience How many Training Hours and experience for a class B Water Operator - Answer: 100 Hours Training and 3 years Experience (must include 1 year of hands on experience) How many Training Hours and ex...

Class A Water Operator Test Questions and Complete Solutions How many Training Hours and experience for a class D Water Operator - Answer: 16 Hours Training and No Experience How many Training Hours and experience for a class C Water Operator - Answer: 36 Hours Training and 1 year Experience How many Training Hours and experience for a class B Water Operator - Answer: 100 Hours Training and 3 years Experience (must include 1 year of hands on experience) How many Training Hours and ex...

CPH Exam 90 Questions with Verified Answers Host, agent and environment - CORRECT ANSWER The epidemiologic triangle (triad) describes the occurrence of disease as an interaction between what three factors? -0.9 An odds ratio of -0.9 most strongly indicates a computational error because an odds ratio is calculated using probabilities, which cannot be negative. An odds ratio is the probability that an event will occur divided by the probability that it will not occur. Since probabilitie...

Water Sifu (#26) Advanced Water Treatment [T3/T4]2023Air Strippers Granular Activated Carbon (GAC) - correct answer Best Available Technology (BAT) for treating VOCs (volatile organic compounds)? 24 Hours public notice 24 Hours to notify the state (primacy agency) Tier 1 violations are done by TV, radio, hand delivery - correct answer How long does a water utility have to notify the public on a Tier 1 Violation? Safe Drinking Water Act - correct answer Which regulation established MCL...

CPH Exam Practice 66 Questions with Verified Answers Public health laws approved by city or county boards must be - CORRECT ANSWER approved by referendum Sensitivity - CORRECT ANSWER true positive rate; proportion of positives correctly identified as such; A/A+C Specificity - CORRECT ANSWER true negative rate; probability of testing negative if the disease is truly absent; D/B+D A confounding variable - CORRECT ANSWER is associated with exposure; it can strengthen or weaken Rate...

Contamination Itroduction into water of micro organisms, chemicals, waste or wastwater which makes the water unfit for its intended use Disifection Process designed to kill or inactive most microorganisms in water Sterilization removal or destruction of all micro organisms in water, spores, vegitate What are the four categories of contaminants? Phsyical Chemical Biological Radiological What are the three types of microbrial contaminants? Bacteria Viruses Pro...