U3 Icc Tank Tightness Testing |63 Questions| With Correct Answers.

What is the inherent error for calculating coefficient of expansion / contraction? a. 1-4% b. 5-9% c. 10-15% {Ans: c. 10-15%}Volumetric test results are more reliable when: {Ans: the leak is large}The definition of probability of false alarm is: {Ans: Probability of incorrectly identify "tight" tank as a leaking tank}Factory-installed diectric coatings may include all of the following except: a . Asphalt b. epoxies c. Enamels d. fiberglass-reinforced plastic {Ans: a . Asphalt}All of the following are considered part of the secondary containment system EXCEPT: a. Under dispenser containment b. Monitoring well c. Containment sensor d. Double wall piping {Ans: b. Monitoring well}The proper procedure for pressurizing a double walled tank includes: a. Pressurizing the interstice before pressurizing the primary tank to conduct a soap water test first. b. Pressurizing the primary tank and the interstice immediately afterwards c. Pressurizing the primary tank and the interstice following the recommended test duration d. Pressurizing the primary tank and interstice simultaneously to avoid causing damage to either tank wall. {Ans: c. Pressurizing the primary tank and the interstice following the recommended test duration}