Fatigue strength of a surface may be increased by – McqOptions

MCQOPTIONS

1.	Fatigue strength of a surface may be increased by
A.	Applying concentrated hydrochloric acid on the surface
B.	Applying birine on the surface and then washing with cold water
C.	Making surface rough
D.	Filling the surface
E.	Polishing the surface
Answer» F.

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