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EXAM REVIEW
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Ihuman Case Study
LETRS
NURS EXAM
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Gas Fitter 2 Practice Test
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Question Number 14
A backflow prevent used in a boiler system should be located in the:
A. Over flow line connected to the drain
B. Return line close to the boiler
C. 1/4" line connecting the boiler and cushion tank
D. Make up water line to the system
✔ Correct Answer:
B. Return line close to the boiler
Count Down:
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