Question 1402 Deck General

The correct answer is D) Ventilate the tank to eliminate any electrostatically charged mist. The reasoning behind this is that when using portable cleaning machines in areas screened from the fixed machine's wash, there is a risk of creating an electrostatically charged mist within the tank. This mist can be ignited by a spark, posing a serious fire hazard. To mitigate this risk, the tank must be properly ventilated to remove any electrostatically charged vapor or mist before using the portable cleaning machine. The other options are incorrect because: A) Attaching the water supply hose after positioning the cleaning head does not address the electrostatic buildup issue; B) Grounding the fixed machines does not eliminate the risk from the portable machine; and C) Ensuring the tanks are not stripped until the final wash is not relevant to the electrostatic hazard.