What type of air compressor utilizes multiple pistons and cylinders?

The correct answer is related to the design and function of air compressors. A multi-stage air compressor is specifically engineered to use multiple pistons and cylinders to compress air in several stages. Each stage increases the pressure progressively, allowing for more efficient compression compared to a single stage, where air is compressed just once.

In a multi-stage compressor, the air is compressed in the first stage, cooled, and then compressed again in the second stage, which allows for higher pressures without overheating the compressor. This design is particularly beneficial in applications that require high-pressure air, enhancing efficiency and performance.

While reciprocating compressors do utilize pistons and cylinders, it is important to note that they can be both single-stage and multi-stage. Therefore, referring specifically to the multi-stage design highlights the correct context of the question. Portable compressors typically refer to a category that can include different types, including single-stage with a different configuration and purpose.