जब 200 N का बल 20 m2 के सतह क्षेत्रफल पर लंबवत कार्य करता है, तो उत्पन्न दाब कितना होगा?

A helical spring has a stiffness of 12 kN/m with 20 turns. If it is cut into two equal parts of 10 turns each and then connected in series, the stiffness of the resulting spring combination is:

A circular shaft is subjected to a bending moment of 600 N·m and a torque of 800 N·m. Its equivalent bending moment is: