Find the allowable circumferential stress for the material having Sut=190 and the Factor of safety is 4.

Find the allowable circumferential stress for the material having Sut=

1.	Find the allowable circumferential stress for the material having Sut=190 and the Factor of safety is 4.
A.	47.5 N/mm<sup>2</sup>
B.	47.5N/m<sup>2</sup>
C.	760N/mm<sup>2</sup>
D.	760N/m<sup>2</sup>
Answer» B. 47.5N/m<sup>2</sup>