After pre-stressing process is completed, a loss of stress is due to________?

If the depth of actual neutral axis of a doubly reinforced beam________?

If the atmospheric pressure on the surface of an oil tank (sp. gr. 0.8) is 0.2 kg/cm”, the pressure at a depth of 50 m below the oil surface will be ________?

According to Whitney’s theory, ultimate strain of concrete is assumed to be________?

Pick up the correct statement from the following?

For the design of retaining walls, the minimum factor of safety against overturning is taken as________?