The advantage of the piston valve over the slide valve is that in the

1.	The advantage of the piston valve over the slide valve is that in the former case
A.	Wear is less
B.	Power absorbed is less
C.	Both wear and power absorbed are low
D.	The pressure developed being high provides tight sealing
Answer» D. The pressure developed being high provides tight sealing

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The advantage of the piston valve over the slide valve is that in the former case

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