how many 15 mm holes will be required to keep the cover plate in position?
how many 15 mm holes will be required to keep the cover plate in position?
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Question
A steam boiler is to have a 300 mm diameter hand placed hole on one end. If the
maximum internal pressure is 1.3 MPa, how many 15 mm holes will be required to keep
the cover plate in position? The root diameter of a 15 mm bolt is 12 mm. The allowable
tensile stress in the bolts is 100 MPa and the initial stress in the bolts when they are
tightened is 600 MPa.
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