👉 Underdraught is a term used in the field of mechanical engineering to describe a state where an object or system's motion is stilled, slowed down, or stopped due to external factors such as friction. This condition can occur when there is insufficient force applied to the object or system, and it can be caused by various factors including air resistance, water pressure, or electrical currents. Underdraught can lead to a loss of energy, reduced efficiency, and even failure of mechanical systems.