Which component is responsible for overpressure relief in the T-54A?

The outflow valves are the components responsible for overpressure relief in the T-54A. Their primary function is to regulate cabin pressure and maintain a safe and stable environment for the crew. When the internal pressure exceeds a predetermined limit, the outflow valves automatically open to allow excess air to escape, preventing any potential structural damage or hazards that might arise from excessive pressure buildup.

In contrast, other options do not fulfill the function of pressure regulation. The cabin altitude sensor monitors pressure levels but does not relieve overpressure. Hydraulic pumps are responsible for providing hydraulic power for various systems and do not have a role in pressure management. The rudder boost system enhances directional control by assisting the pilot with rudder inputs, but it doesn’t involve cabin pressure or overpressure scenarios. Thus, the outflow valves are critical in maintaining safe operational conditions within the vehicle.