Will the left generator turn on if the gen voltage reads 24V after engine start?

The correct choice highlights an important aspect of generator function and the implications of voltage readings. If the generator voltage reads 24V after the engine starts, this suggests that there might be an issue with the generator, particularly a current limiter failure. In a properly functioning system, the generator would need to be within a specific voltage range to operate effectively, often indicating that it is capable of providing electrical power to the system.

If the generator is not producing the expected output or is reading the voltage but not supplying current, it indicates that something is preventing it from functioning correctly, such as a failure in the current limiting circuit. This failure could inhibit the generator’s ability to turn on and provide power as needed.

Understanding this is essential for troubleshooting. While other factors like readiness of the system, dependencies on additional systems, and manual activation are considerations in the operation of generators, the presence of a current limiter failure specifically explains why the generator would not activate even if the voltage is present. Thus, recognizing the relationship between voltage readings and potential failures in automatic systems is critical for effective troubleshooting and maintenance of the T-54A generator systems.