BAT Backflow Assembly Field Testing Procedures

Question 1

What is the first step when performing a field test on a backflow prevention assembly?

Accepted Answer

Close the #1 shutoff valve to isolate the assembly

Answer

Attach the test kit to the test cocks

Answer

Open the relief valve to bleed pressure

Answer

Close the #2 shutoff valve and bleed downstream

Question 2

Which test cocks are used when field testing a Reduced Pressure Zone (RPZ) assembly?

Accepted Answer

Test cocks 1, 2, and 3

Answer

Test cocks 1 and 2 only

Answer

Test cocks 2 and 3 only

Answer

Test cocks 1 and 3 only

Question 3

What minimum differential pressure reading across check valve #1 on an RPZ assembly is required for a passing field test?

Accepted Answer

5.0 psi

Answer

1.0 psi

Answer

3.0 psi

Answer

10.0 psi

Question 4

What is the purpose of the bypass needle valve on a backflow prevention test kit?

Accepted Answer

To slowly equalize pressure between the high and low pressure hoses

Answer

To increase supply line pressure during testing

Answer

To drain the test kit hoses after use

Answer

To test the relief valve opening pressure

Question 5

What minimum differential pressure must each check valve hold during a field test of a Double Check Valve Assembly (DCVA)?

Accepted Answer

1.0 psi

Answer

0.5 psi

Answer

2.0 psi

Answer

5.0 psi

Question 6

Before connecting test equipment to a backflow assembly's test cocks, the tester should verify that:

Accepted Answer

The test cocks are open and free of debris

Answer

Downstream system pressure exceeds 100 psi

Answer

The assembly is installed at least 12 inches above grade

Answer

The relief valve has been manually opened

Question 7

During field testing, a 'tight' shutoff valve is defined as one that:

Accepted Answer

Does not allow water to pass through when in the closed position

Answer

Is difficult to turn due to corrosion

Answer

Requires a special wrench to operate

Answer

Is rated for pressures above 150 psi