Technician A says that a cylinder leakage test fills the cylinder with compressed air and the gauge indicates the percentage of leakage. Technician B says that a compression test can be used to test the condition of connecting rods. Who is correct?

Technician A is correct.

Step-by-step explanation:

Technician A says that a cylinder leakage test fills the cylinder with compressed air, and the gauge indicates the percentage of leakage.

This is correct.

The cylinder leakage test is also called engine leak down test. Here rather than measuring the ability of engine to generate pressure, compressed air is filled in the cylinder via spark plug hole.