An internal mouthpiece is said to be running free if the length of the mouthpiece is __________ the diameter of the orifice.

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Question: An internal mouthpiece is said to be running free if the length of the mouthpiece is __________ the diameter of the orifice.
[A].

less than twice

[B].

more than twice

[C].

less than three times

[D].

more than three times

Answer: Option C

Explanation:

No answer description available for this question.