🏢Minnesota Safe Facilities — Question 9 of 20
Which method provides the most effective backflow prevention in plumbing systems?
Minnesota ServSafe Safe Facilities Test Info
Questions on Exam
~10 scored questions on the exam
Passing Score
75% overall (60/80)%
Time Limit
2 hours for the full exam
Certification Renewal
Every 5 years
Minnesota Department of Health
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