BACKFLOW TESTING RP EXAM
QUESTIONS AND ANSWERS
Testing RP - Correct Answers -1.Notify Identify Insepct Observe
2.Flush Test Cocks 4,3,2,1
3. Attach high side hose to TC2, low side hose to TC3
4. Open TC3 open low side bleed. Open TC2 open high side bleed
5. Close shut off valve 2. Close high side bleed. Close low side bleed.
6. Open high side control 1 full turn, open low side control 1/4 turn. Record what PSI
relief valve opens.
7. Close low side control. Attach bypass hose to TC4. Open TC4.
8. Open low side bleed until reading is at max, then close.
9. Open bypass control needle valve. Once reading is steady, record as "closed tight"
for check valve #2.
10. Open low side bleed until reading is at max, then close. Once reading settles, record
as check valve #1 reading.
11. Close TCs, open shut off valve #2, remove equipment.
What readings does an RP have to have to pass? - Correct Answers -Relief valve: 2.0
PSI or greater
Check valve 2: closed tight
Check valve 1: greater then relief valve opening point, greater then 5.0 PSI or greater
RP Diagnostics:
5. Close shut off valve 2. Close high side bleed. Close low side bleed.
6.Reading drops to pressure relief valve opening point - Correct Answers -Record
reading for relief valve, check valve #1 leaks. Fail
RP Diagnostics:
5. Close shut off valve 2. Close high side bleed. Close low side bleed.
6. Open high side control 1 full turn, open low side control 1/4 turn. Relief valve does not
open, reads 0PSI - Correct Answers -Record as "did not open". Continue with test. Fail
RP Diagnostics:
7. Close low side control. Attach bypass hose to TC4. Open TC4.
8. Open low side bleed until reading is at max, then close.
9. Open bypass control needle valve. Reading falls below relief valve opening point. -
Correct Answers -Open low side bleed until reading is at max, then close.
QUESTIONS AND ANSWERS
Testing RP - Correct Answers -1.Notify Identify Insepct Observe
2.Flush Test Cocks 4,3,2,1
3. Attach high side hose to TC2, low side hose to TC3
4. Open TC3 open low side bleed. Open TC2 open high side bleed
5. Close shut off valve 2. Close high side bleed. Close low side bleed.
6. Open high side control 1 full turn, open low side control 1/4 turn. Record what PSI
relief valve opens.
7. Close low side control. Attach bypass hose to TC4. Open TC4.
8. Open low side bleed until reading is at max, then close.
9. Open bypass control needle valve. Once reading is steady, record as "closed tight"
for check valve #2.
10. Open low side bleed until reading is at max, then close. Once reading settles, record
as check valve #1 reading.
11. Close TCs, open shut off valve #2, remove equipment.
What readings does an RP have to have to pass? - Correct Answers -Relief valve: 2.0
PSI or greater
Check valve 2: closed tight
Check valve 1: greater then relief valve opening point, greater then 5.0 PSI or greater
RP Diagnostics:
5. Close shut off valve 2. Close high side bleed. Close low side bleed.
6.Reading drops to pressure relief valve opening point - Correct Answers -Record
reading for relief valve, check valve #1 leaks. Fail
RP Diagnostics:
5. Close shut off valve 2. Close high side bleed. Close low side bleed.
6. Open high side control 1 full turn, open low side control 1/4 turn. Relief valve does not
open, reads 0PSI - Correct Answers -Record as "did not open". Continue with test. Fail
RP Diagnostics:
7. Close low side control. Attach bypass hose to TC4. Open TC4.
8. Open low side bleed until reading is at max, then close.
9. Open bypass control needle valve. Reading falls below relief valve opening point. -
Correct Answers -Open low side bleed until reading is at max, then close.
