What type of power operates the standby boost pumps in the T-54A?

The standby boost pumps in the T-54A are powered by electrical power. This choice reflects the modern approach to aircraft systems, where electrical power provides the necessary functionality and reliability for critical components like fuel pumps. Using electrical power to operate boost pumps allows for quick response times, efficient operation, and easier integration with other electrical systems in the aircraft.

In contrast, hydraulic systems typically require more complex interactions and may not be ideal for all auxiliary functions. Pneumatic power, while useful in certain applications, does not apply to fuel pump operations in this context. Mechanical power generally refers to direct physical movement, which would not appropriately suit the task of operating pumps that require adjustable and controllable power delivery. Thus, electrical power is the appropriate and most effective choice for operating the standby boost pumps in the T-54A.