The ratio of d / tfor thick cylinder is__________(whered = inner diameter, t = wall thickness)

The ratio of d / tfor thick cylinder is__________(whered = inner diame

1.	The ratio of d / tfor thick cylinder is__________(whered = inner diameter, t = wall thickness)
A.	greater than 20
B.	less than 20
C.	equal to 20
D.	none of the above
Answer» C. equal to 20

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