Final answer:
The correct answer is 'live' load, referring to temporary, dynamic forces on a structure that can vary, unlike permanent or dead loads.
Step-by-step explanation:
A live load is any load that is not of a permanent nature, such as snow. Live loads can vary in magnitude and position.
Any load which is not of a permanent nature, such as snow, is called a live load. Live loads are temporary or variable loads that can change in magnitude and position. Other examples of live loads include people, furniture, and vehicles.
Any load which is not of a permanent nature, such as snow, is called a live load. The options given are: 1) Permanent 2) Live 3) Imposed 4) Dead. In the context of structural engineering, live loads (also known as imposed loads) refer to temporary, dynamic forces that can vary in magnitude and location. These differ from permanent or dead loads, which are constant and are due to the weight of the structure itself, such as the walls, floors, roof, and other permanent components.