Technician a Says That a Reading of One Psi on a Pressure

Multiple Choice

Technician A says that a reading of one psi on a pressure gauge is equal to approximately 2-inches of Hg (mercury) measured on a manometer.Technician B says that one inch of Hg is equivalent to approximately 2-inches of H₂0 on a manometer.Who is correct?

A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B