The diameter of a cylindrical shell of a Scotch marine boiler varies – McqOptions

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1.	The diameter of a cylindrical shell of a Scotch marine boiler varies from ___________
A.	3.5 to 4.5m
B.	1.5 to 2m
C.	2.5 to 3.5m
D.	none of the mentioned
Answer» D. none of the mentioned

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