Technician A says that low pressure smoke installed in the fuel system can be used to check for leaks.
Technician B says that nitrogen under low pressure can be installed in the fuel system to check for leaks. Which technician is correct?

Question

Quizplus · Accepted Answer

Both low pressure smoke and nitrogen under low pressure are commonly used methods for detecting leaks in the fuel system. Technician A's method uses smoke to visually identify where leaks are occurring, while Technician B's method uses nitrogen, a safe and inert gas, to pressurize the system and identify leaks, often in conjunction with a leak detection solution or electronic leak detector.

Technician a Says That Low Pressure Smoke Installed in the Fuel