Which of the following is a category of positive-displacement compressors?
A) Axial
B) Rotary
C) Centrifugal
D) Dynamic
Answer: B
Explanation: A) Incorrect. The two main categories of positive-displacement compressors are rotary and reciprocating.
B) Correct. The two main categories of positive-displacement compressors are rotary and reciprocating.
C) Incorrect. The two main categories of positive-displacement compressors are rotary and reciprocating.
D) Incorrect. The two main categories of positive-displacement compressors are rotary and reciprocating.
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