According to the Unwin's formula, if is thickness of the plate in cm, – McqOptions

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1.	According to the Unwin's formula, if is thickness of the plate in cm, the nominal diameter of the rivet, is
A.	d = 1.91 t
B.	d = 1.91 t
C.	d = 1.91
D.	d = 1.91
E.	d = 2.3
Answer» D. d = 1.91

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