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1. Which of the following situations does NOT contribute to pathogens multiplying in our water systems? a) Design errors in the system b) Mistakes in system operations c) Overfeeding biocide d) Simple negligence in system maintenance - doing nothing at all
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C) Overfeeding biocide
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2. In water distribution systems, which following condition does NOT directly support pathogen growth? a) Stagnant water b) High water flow c) Sediment d) Mineral build up/scale e) Biofilms
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B) High water flow
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3. Water quality could vary throughout a water distribution system - True or false
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True
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4. Legionella can proliferate in modern water systems True or false
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True
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5. At the point where water enters a facility, who is responsible for the water quality? a) The water treatment supplier b) The public water treatment utility c) No one d) Facility owners and management
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D) Facility owners and management
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6. Legionella is a: a) Bacteria b) Fungi c) Protozoa d) Virus
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A) Bacteria
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7. Legionnaire's disease is a serious and preventable disease. Why is it considered preventable? a) It is easy to cute, once acquired b) Proper management of water systems significantly reduces the risk c) Legionella bacteria are very rare in the environment d) The mortality rate is very low
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B) Proper management of water systems significantly reduces the risk
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8. What is the exposure method of contracting Legionnaire's disease? a) Ingestion b) Contact with skin c) Inhalation d) Person to person e) All of the above
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C) Inhalation
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9. What are the potential negative impacts to a facility that has been linked to an outbreak of Legionnaire's disease? (More than one may apply) a) Civil damages awarded to victims b) Negative publicity c) Increase in stock value d) Censure/fines from regulatory agencies
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A) Civil damages awarded to victimsb) Negative publicityd) Censure/fines from regulatory agencies
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10. What are the common elements, from all global regulations, that reduces the risk of legionellosis? a) risk assessment b) Pathogen Analysis c) Monitoring & Control d) Remediation e) All of the above
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E) All of the above
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11. System cleanings should be accompanied by a disinfection step to ensure the cleaning meets a higher, health-related standard - True or False
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True
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12. In the video, what systems were suggested to offer the greatest risk of proliferating Legionella? (More than one may apply) a) Cooling towers b) Hydraulic system in a manufacturing facility c) Waste management system d) Decorative fountains e) Showers f) Pools and spas g) Spray systems
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A) Cooling towers
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13. A risk assessment: (More than one may apply) a) Can be performed by anyone b) Is performed by a trained expert c) Examines water systems to determine the level of risk associated with Legionella d) Is a general study and not considered site specific e) Should result in a written, site specific management plan
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B) Is performed by a trained expertc) Examines water systems to determine the level of risk associated with Legionellae) Should result in a written, site specific management plan
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14.Risk is the combination of which TWO of the following? (Two answers) a) Temperature b) Pressure c) Contamination d) Exposure
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C) Contaminationd) Exposure
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15. Monitoring and Control programs are disgned to ensure that a system remains safe? True or False?
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True
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