What is the definition of torque?

Torque is defined as the measure of the rotational force applied to an object, particularly in the context of fastening and mechanical systems. It addresses how much rotational force is necessary to ensure that a fastener, such as a bolt or a screw, is secured properly to hold components together. Torque is typically measured in units such as foot-pounds or inch-pounds, indicating the degree of force applied at a distance from the pivot point or axis of rotation.

In practical terms, applying the correct amount of torque to a fastener ensures that the connections in an aircraft structure are stable and secure, which is vital for safety and performance in aviation. When the torque is insufficient, the fastener may loosen, while excessive torque can damage the fastener or the components it secures.

The other options do not accurately define torque. The total weight of an object refers to gravitational force affecting it, the speed at which a tool operates addresses the performance characteristics of the tool rather than its force application, and the length of a fastener describes a physical dimension without relation to the force exerted on it. Thus, understanding torque is crucial in the field of aviation, especially for ensuring the integrity of mechanical connections.