Archer Pharmacology & Dosage Calc Practice Exam

A boiler operates at 400 PSI, with the safety valve opening at 410 PSI and closing at 398 PSI. What is the blowdown?

2 PSI 10 PSI 12 PSI 8 PSI

12 PSI

Blowdown = Opening pressure - Closing pressure. 410 - 398 = 12 PSI.

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