Question

question 47 (2 points)
the condition that occurs when the pressure of the water supply drops below that of the contaminated supply is known as
a back siphonage
b water system failure
c cross contamination
d flood rim intrusion

Explanation:

This term specifically refers to the scenario where potable water supply pressure falls below that of a contaminated source, causing contaminated water to be drawn into the clean water system. The other options are either too broad (water system failure) or describe different contamination mechanisms (cross contamination is a general term, flood rim intrusion involves surface flooding entry).

Answer:

a. Back siphonage