What type of compressor is a dynamic compressor in which the gas flows from the inlet located near the suction eye to the outer tip of the impeller blade?
A) Dynamic
B) Centrifugal
C) Axial
D) Positive-displacement
Answer: B
Explanation: A) Incorrect. A dynamic compressor is a continuous flow machine that uses speed (instead of pistons) to increase the pressure of gas at the discharge.
B) Correct. A centrifugal compressor is a dynamic compressor in which the gas flows from the inlet located near the suction eye to the outer tip of the impeller blade.
C) Incorrect. An axial compressor uses a series of rotor blades with a set of stator blades between each rotating wheel to move gases axially along the shaft.
D) Incorrect. Positive-displacement compressors use screws, pistons, sliding vanes, lobes, gears, or diaphragms to deliver a set volume of gas with each stroke.
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