A metal alloy machine component is subjected to fluctuating tensile stress from 100 N/mm2 to 200 N/mm2. The material has yield and endurance strength of 450 and 200 N/mm2. The material has yield and endurance strength of 450 and 200 N/mm2 respectively. Find the factor of safety of the machine component.

A metal alloy machine component is subjected to fluctuating tensile st

1.	A metal alloy machine component is subjected to fluctuating tensile stress from 100 N/mm2 to 200 N/mm2. The material has yield and endurance strength of 450 and 200 N/mm2. The material has yield and endurance strength of 450 and 200 N/mm2 respectively. Find the factor of safety of the machine component.
A.	5/6
B.	12/7
C.	1/3
D.	6/5
Answer» C. 1/3

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