Pick out the wrong statement.

The equivalent stiffness of two springs (of equal stiffness 'S') in series is

\frac{S}{2}

while in parallel is 2S

For a helical spring, deflection is proportional to D³ (D = mean coil diameter) or d⁴ (d = wire diameter)

Crushing load or columns is less than the buckling load

Answer

Modulus of resilience is proportional to (stress at elastic limit)²

Answer: Option C

Answer: Option C

No explanation is given for this question Let's Discuss on Board