General Authority of Civil Aviation (GACA) Aeronautical Information Publication (AIP) Practice Exam

How many fire extinguishers are available for the APU?

1. One

2. Two

3. Three

4. Four

The correct answer is: One

The correct answer regarding the number of fire extinguishers available for the Auxiliary Power Unit (APU) is that there is one fire extinguisher provided. This is in line with standard aviation safety practices, which typically design the APU fire safety measures with a single dedicated fire extinguisher that is easily accessible for emergency response. It’s essential for an APU, which is crucial for providing energy on the ground and servicing secondary power needs, to have an efficient but straightforward fire suppression system in place. This is reflective of the safety protocols in aviation that ensure effective resource allocation while maintaining a focus on operational safety. In standard regulatory frameworks, having multiple extinguishers might be unnecessary given the design and location of the APU, and this reduces potential weight and complexity within the aircraft systems. The specific training and procedures for flight crews also emphasize knowing the location and use of this single fire extinguisher, ensuring effective response to any fire incidents associated with the APU.