If the Inlet Pressure on the Backflow Preventer Drops Below

question 4

Multiple Choice

If the inlet pressure on the backflow preventer drops below the pressure in the hydronic system, springs return both check valves and the movable cartridge to their ____ positions.

• A) open
• B) closed
• C) original
• D) preset

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Definitions:

Embryonic Stage

A critical phase in prenatal development that occurs from about the second to the eighth week after conception, where major organs and structures begin to form in the embryo.

First Trimester

The initial stage of pregnancy lasting from conception to 12 weeks, characterized by significant physical and developmental changes in the embryo.

Innate Involuntary

Refers to reflex actions or responses that are not learned and occur automatically without conscious thought.

Voluntary Behavior

Actions and responses that are under an individual's conscious control and decision-making.