Theory of Structures
A close coil helical spring of mean diameter D consists of n coils of diameter d. If it carries an axial load W, the energy stored in the spring, is

4W²D3n²/d4N
4W²D3n/d4N
4W²Dn/d4N
4WD²n/d4N

ANSWER DOWNLOAD EXAMIANS APP

Theory of Structures
Pick up the correct statement from the following:

All of these
The moment of inertia is calculated about the axis about which bending takes place
If tensile stress is less than axial stress, the section experiences compressive stress
If tensile stress is equal to axial stress, the section experiences compressive stress

ANSWER DOWNLOAD EXAMIANS APP