Q. If machine number is loaded in such a way that the three principla stresses at a point are 600 kg/cm2 compression. 800 kg/cm2 tension and zero. The maximum shear stress at the point will be

• (A) 700 kg/cm2
• (B) 600 kg/cm2
• (C) 1000 kg/cm2
• (D) 800 kg/cm2