What happens in a centrifugal compressor when the impeller spins?
A) It decreases the velocity of the gas
B) It increases the velocity of the gas
C) It stabilizes the velocity of the gas
D) It changes the structure of the gas
Answer: B
Explanation: A) Incorrect. In a centrifugal compressor, the impeller spins, creating centrifugal force, which increases the velocity of the gas.
B) Correct. In a centrifugal compressor, the impeller spins, creating centrifugal force, which increases the velocity of the gas.
C) Incorrect. In a centrifugal compressor, the impeller spins, creating centrifugal force, which increases the velocity of the gas.
D) Incorrect. In a centrifugal compressor, the impeller spins, creating centrifugal force, which increases the velocity of the gas.
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