BACKFLOW PREVENTION AND CROSS CONNECTION CONTROL EXAM 2024

BACKFLOW PREVENTION AND CROSS CONNECTION CONTROL EXAM 2024 Relief valve discharges continuously. Problem May be caused by what 5 faults? - correct answer 1. Faulty No. 1 check valve (F1CV) 2. Faulty No. 2 check valve with backpressure (F2CVwB) 3. Faulty relief valve (FRV) 4. Relief valve plugged sensing |ine(s) (RVPSL) 5. Relief Valve leaking diaphragm (RVLD) Relief valve discharges intermittently. Problem May be caused by what 4 faults? - correct answer 1. Properly working assembly with large pressure fluctuations 2. No.1 check valve reading is close to RV opening point, with small line pressure fluctuation. 3. Water hammer 4. No. 1 check valve leak with intermittent flow through assembly. During RP Test 1, Relief Valve discharges after No. 2 shutoff valve is closed. What does this indicate? - correct answer 1. Normally indicates faulty No. 1 check valve • Dirty or damaged disc • Dirty or damaged seat: or, 2