One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； October 03
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Single-choice question: When starting or stopping pump equipment equipped with mechanical seals, since the movement between the rotating and stationary rings of the mechanical seal relies on liquid lubrication and cooling, it is necessary to open the ( ) valve before starting the pump, so that the liquid can fill the space and provide adequate lubrication. A. Outlet B. Inlet C. Return D. Waste discharge Answer: B, Inlet
When starting or stopping pump equipment equipped with mechanical seals, since the movement between the rotating and stationary rings of the mechanical seal relies on liquid lubrication and cooling, it is necessary to open the (B, inlet) valve before starting the pump so that the liquid can fill the space and provide adequate lubrication.
Since the movement between the mechanical seal and the static ring relies on liquid lubrication and cooling, it is necessary to open the inlet valve before starting the pump, so that the liquid can fill the space and provide adequate lubrication； Close the valve after stopping rotation to prevent wear due to the lack of cooling lubricant.
When starting or stopping pump equipment equipped with mechanical seals, since the movement between the rotating and stationary rings of the mechanical seal relies on liquid lubrication and cooling, it is necessary to open the (B, inlet) valve before starting the pump so that the liquid can fill the space and provide adequate lubrication.
When starting or stopping pump equipment equipped with mechanical seals, since the movement between the rotating and stationary rings of the mechanical seal relies on liquid lubrication and cooling, it is necessary to open valve (B) before starting the pump so that the liquid can fill the space and provide adequate lubrication.