Regulations, Safety & Professional Ethics Flashcards
7 cards from real CWS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Regulations, Safety & Professional Ethics flashcards as text
Which federal law requires employers to inform and train workers about chemical hazards they may encounter on the job?
Answer: OSHA Hazard Communication Standard (HCS)
OSHA's Hazard Communication Standard (29 CFR 1910.1200) requires employers to train workers on chemical hazards and maintain accessible Safety Data Sheets.
A water treatment dealer discovers that a brand of filter cartridges they sell does not meet the NSF/ANSI performance claims on its label. What is the ethical course of action?
Answer: Discontinue sales and notify affected customers
Selling products with false performance claims is unethical and potentially illegal; the professional must stop sales and notify customers who may have been misled.
What is the significance of NSF/ANSI Standard 44 in the water treatment industry?
Answer: It establishes requirements for residential cation exchange water softeners
NSF/ANSI Standard 44 sets minimum requirements for the performance, materials safety, and structural integrity of residential cation exchange water softeners.
When handling potassium permanganate used in iron filtration systems, which personal protective equipment (PPE) is most critical to protect against skin contact?
Answer: Chemical-resistant gloves and eye protection
Potassium permanganate is a strong oxidizer that can cause skin and eye irritation, requiring chemical-resistant gloves and eye protection during handling.
A state drinking water regulation is stricter than the corresponding federal EPA standard. Which standard must a public water system comply with?
Answer: The state standard, since states may adopt stricter standards than federal minimums
The SDWA allows states to set drinking water standards that are stricter than federal minimums, and regulated entities must comply with the more stringent state standard.
Which of the following scenarios represents an ethical violation by a CWS-certified professional?
Answer: Inflating water quality test results to sell a more expensive treatment system
Falsifying water quality test results to drive unnecessary sales is fraud and a serious violation of professional ethics and truth-in-advertising laws.
In water treatment installations, what does 'cross-connection' refer to?
Answer: Any physical link between a potable water supply and a source of contamination
A cross-connection is any physical connection between a potable water system and a non-potable source, creating a contamination risk that backflow prevention devices are designed to eliminate.