What is the process of putting an inert gas, usually nitrogen, into the vapor space above the liquid in a tank to prevent air leakage into the tank?

Question

A) Blanketing
B) Floating roof
C) Articulated drain
D) Foam chamber

Answer 1

Answer: A
Explanation: A) Correct. Blanketing is the process of putting an inert gas, usually nitrogen, into the vapor space above the liquid in a tank to prevent air leakage into the tank.
B) Incorrect. A floating roof floats upon the surface of the stored liquid and is used to decrease vapor space and reduce potential for evaporation.
C) Incorrect. An articulated drain removes water from the roof.
D) Incorrect. A foam chamber is reservoir and piping that contain chemical foam used to extinguish fires within a tank.