A(n) ___ circuit allows the operator to start and run a motor for short periods of time without memory.

A jogging circuit is specifically designed to allow the operator to start and run a motor for brief intervals without maintaining the motor's operation afterward. This is particularly useful in applications where precise positioning or short bursts of operation are required without the need for sustained power. In this type of circuit, the motor only operates as long as the control switch is held down, after which it stops immediately. This functionality is ideal for applications that require fine-tuning or adjustments of machinery without the motor continuing to run afterward, effectively eliminating concerns about memory of previous states or exact positions.

In contrast, a reversing circuit typically enables a motor to run in both forward and reverse directions, rather than focusing on momentary operation. A momentary circuit might imply brief operation as well, but it does not encapsulate the specificity and control provided by a jogging circuit. An interlock circuit is designed to prevent certain operations from occurring simultaneously for safety reasons, which does not align with the context of short-duration motor operation. Therefore, the jogging circuit's primary role is to facilitate short bursts of operation without memory of the motor's previous state, making it the correct choice for this scenario.