Which of the following is an example of dynamic loading?

Dynamic loading refers to the application of loads that vary over time, often involving sudden or fluctuating forces that can significantly impact the structural integrity or behavior of materials and systems. Shock loading is a prime example of this, as it involves a rapid force or impact applied to a structure or material that can lead to unexpected stresses and strains. Such loads can arise from events like dropping an object or a sudden stop, where the load changes instantaneously.

In contrast, consistent daily use represents a static or cyclical loading scenario where the load is applied regularly over time without sudden changes. Proper handling pertains to the methods and practices used to move and manage loads but does not inherently describe a specific type of loading. Short term storage involves holding loads in place for a temporary period, but again, it lacks the dynamic aspect of changing or impact forces.

Through this understanding, it's evident why shock loading is classified as an example of dynamic loading, distinguishing it clearly from the other scenarios listed.