In distillation columns, bubble caps are held in place over trays by ________________?
Correct answer: D. Both B. and C.
- A. Rivets
- B. A hold down bar
- C. Bolts
- D. Both B. and C.
Explanation
Bubble caps must be restrained against lifting and are commonly secured using hold-down bars or bolts. Therefore, both methods listed in B and C are applicable.
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