Radon Certification Practice Test & Exam Prep

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While demonstrating the new system, the installer shows the client the u-tube manometer on the vent pipe. Which condition should the installer explain indicates the fan is operating and creating suction?

The colored fluid columns rest at unequal heights The colored fluid columns rest at exactly equal heights The fluid has completely drained out of the tube The fluid bubbles continuously while the fan runs

Correct Answer:

The colored fluid columns rest at unequal heights

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