GATE 2025 AE – Question 35
In a centrifugal compressor, the eye tip diameter is 10 cm. For a shaft rotational speed of 490 rotations per second, the tangential speed at the inducer tip is ___ m/s (rounded off to one decimal place).
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Show answer and explanation
Correct answer: 153.13 to 154.67
Explanation
The tangential speed is $U = \pi D N = \pi \times 0.1 \times 490 = 153.9$ m/s.