When the hand wheels on the gauge manifold are turned counter clockwise:

A) Refrigerant flow between the outer hoses and the center hose is shut off.
B) Refrigerant can flow between the outer hoses and the center hose.
C) The pressure in the hoses is allowed to travel up to the gauges for a reading.
D) The pressure in the hoses is shut off from the gauges and no reading can be made.


B

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