The maximum liquid gradient over a tray must not exceed__________________?
Correct answer: B. 0.5″ -1.25″
- A. 2″-3.5″
- B. 0.5″ -1.25″
- C. 5″
- D. Half the tray spacing
Explanation
The liquid level should remain nearly uniform across a tray; the allowable gradient is approximately 0.5 to 1.25 inches. A larger gradient can cause poor contacting, weeping, or excessive liquid accumulation on one side.
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