Which statement correctly describes the automatic line leak detector's pressure condition?

Which statement correctly describes the automatic line leak detector's pressure condition?

• A. Detects leaks at 50 psi
• B. Detects leaks at 10 psi
• C. Detects leaks at 5 psi
• D. Detects leaks at 100 psi

Answer: (B)

Automatic line leak detector relies on holding the test line at a fixed, moderate pressure and watching for a drop that would indicate a leak. The 10 psi level is used because it provides enough pressure to reveal leaks quickly and clearly while staying within safe, practical limits for typical equipment. Higher pressures like 50 or 100 psi require tougher hardware and can introduce other variables, and a much lower pressure such as 5 psi can be too close to measurement noise and might miss small leaks. So, 10 psi is the optimal balance for reliable leak detection with the device.

Automatic line leak detector relies on holding the test line at a fixed, moderate pressure and watching for a drop that would indicate a leak. The 10 psi level is used because it provides enough pressure to reveal leaks quickly and clearly while staying within safe, practical limits for typical equipment. Higher pressures like 50 or 100 psi require tougher hardware and can introduce other variables, and a much lower pressure such as 5 psi can be too close to measurement noise and might miss small leaks. So, 10 psi is the optimal balance for reliable leak detection with the device.