Pick out the wrong statement.
(A) Cold cracking of a weld is due to the presence of hydrogen gas in the
weld
(B) True stress is given by, σ = σE (1 + εE), where σE and εE are engineering
stress and engineering strain respectively
(C) Phosphorous can be easily recovered in the iron blast furnace
(D) High residual stress at the surface is beneficial for fatigue properties of a
material
(A) Cold cracking of a weld is due to the presence of hydrogen gas in the
weld
(B) True stress is given by, σ = σE (1 + εE), where σE and εE are engineering
stress and engineering strain respectively
(C) Phosphorous can be easily recovered in the iron blast furnace
(D) High residual stress at the surface is beneficial for fatigue properties of a
material