Which of the following valves will incur maximum pressure drop for the same discharge of water ?
Correct answer: C. Needle valve
- A. Globe valve
- B. Gate valve
- C. Needle valve
- D. Butterfly valve
Explanation
A needle valve has a very narrow, tapered flow passage and therefore a very high loss coefficient. For the same water discharge, it produces a greater pressure drop than globe, gate, or butterfly valves.
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