The most common standard size of bubble caps used in industrial operation is___________________?
Correct answer: B. 6″ dia cap with 4″ dia riser
- A. 1″ dia cap with 0.5″ dia riser
- B. 6″ dia cap with 4″ dia riser
- C. 8″ dia cap with 1″ dia riser
- D. 4″ dia cap with 8″ dia riser
Explanation
A standard industrial bubble cap is commonly about 6 inches in diameter with a 4-inch riser. The other dimensions either give an unusually small cap or an impractical riser-to-cap proportion.
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