BAT Tools & Equipment Operation 2

Question 1

When zeroing a differential pressure gauge before a field test, the tester should ensure the gauge reads zero with:

Accepted Answer

Both bleed valve and needle valves open to atmosphere

Answer

Zeroing is performed with all valves open to atmosphere so no pressure acts on either side of the gauge.

Question 2

A field test kit gauge that reads 2.0 psid when both sides are open to atmosphere requires:

Accepted Answer

Recalibration or replacement before use

Answer

A gauge that does not read zero at zero differential must be recalibrated or replaced to ensure accurate test results.

Question 3

Which hose connection color convention is standard on most differential pressure test kits?

Accepted Answer

Red = high pressure, Blue = low pressure

Answer

The industry convention is red for high-pressure (upstream) and blue for low-pressure (downstream) connections.

Question 4

When testing a reduced pressure zone (RPZ) assembly, the differential pressure gauge needle valves are used to:

Accepted Answer

Control the rate at which water enters the gauge to protect it from pressure spikes

Answer

Needle valves throttle water flow into the gauge, preventing sudden pressure surges from damaging the gauge internals.

Question 5

A tester's differential pressure gauge has a full-scale range of 15 psid. During an RPZ test, the zone differential reads 13.5 psid. This situation calls for:

Accepted Answer

Using a higher-range gauge to avoid operating near full scale

Answer

Operating a gauge near its full-scale limit reduces accuracy; a higher-range gauge should be used for readings above roughly 75% of full scale.

(BAT) Backflow Assembly Tester Certification Practice Test

(BAT) Backflow Assembly Tester Certification Practice Test

BAT Tools & Equipment Operation 2