What type of tray design is designed with perforated openings, typically circular, in the tray deck?
A) Sieve tray
B) Valve tray
C) Bubble cap tray
D) Overhead tray
Answer: A
Explanation: A) Correct. A sieve tray is designed with perforated openings, typically circular, in the tray deck.
B) Incorrect. A valve tray contains valve lifters, similar to those in a car engine. The valve is lifted, or opened, as the vapor rate increases.
C) Incorrect. A bubble cap tray is designed with risers in the deck area of each tray.
D) Incorrect. A sieve tray is designed with perforated openings, typically circular, in the tray deck.
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