VIP Exclusive
Certified Aquatic Technician (CAT) VIP Practice Exam
CAT — The Certified Aquatic Technician (CAT) credential is issued by the Pool & Hot Tub Alliance (PHTA); the proctored exam covers water chemistry, filtration, hydraulics, electrical safety, equipment service, and regulatory compliance across approximately 100 questions with a 70% passing threshold.
31
Questions
120m
Time Limit
70.00%
To Pass
Question 1 of 31👑 VIP
A residential pool technician tests the water and records the following readings: pH 7.8, total alkalinity 60 ppm, calcium hardness 350 ppm, free chlorine 2.0 ppm, and cyanuric acid 50 ppm. Using the Langelier Saturation Index (LSI), which parameter is MOST likely causing the water to trend toward scale formation?
Questions 2–31 and full explanations are VIP-exclusive.