A shaft is subjected to fluctuating loads for which the normal torque (T) and bending moment (M) are 1000 N-m and 500 N-m respectively. If the combined shock and fatigue factor for bending is 1.5 and combined shock and fatigue factor for torsion is 2, then the equivalent twisting moment for the shaft is

• A. 2100 N-m
• B. 2136 N-m
• C. 2000 N-m
• D. 2050 N-m

Answer: (B)