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Which of the following valve consists of a tapered plug?

(a) Piston valve

(b) Globe valve

(c) Needle valve

(d) Plug valve

The question was asked in an online interview.

This intriguing question originated from Instrumentation and Control in chapter Instrumentation and Control of Fermentation Technology

1 Answer

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Best answer
Right answer is (c) Needle valve

For explanation: The needle valve consists of a tapered plug. It is similar to the globe valve but the disc is replaced by a tapered valve or needle fitted into the tapered valve seat.

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