Prior to acceptance testing of a dry chemical system, the piping must be physically checked for which of the following?

Prior to acceptance testing of a dry chemical system, the piping must be physically checked for which of the following?

• A. Alignment
• B. Corrosion
• C. Verification
• D. Tightness

Answer: (D)

Before acceptance testing, the piping must be checked for tightness, ensuring a leak-free system under pressure. Tightness means all joints, valves, and fittings are sealed so no air or dry chemical escapes when the system is pressurized. This is critical because leaks can prevent proper discharge, reduce the amount of agent available, and risk contamination or misdirection of flow. Alignment is important for fit and routing, but it doesn’t by itself guarantee a leak-free condition. Corrosion is a longer-term concern and not the focus of this immediate physical check, and verification refers to confirming procedures or measurements rather than the pipe’s ability to hold pressure.

Before acceptance testing, the piping must be checked for tightness, ensuring a leak-free system under pressure. Tightness means all joints, valves, and fittings are sealed so no air or dry chemical escapes when the system is pressurized. This is critical because leaks can prevent proper discharge, reduce the amount of agent available, and risk contamination or misdirection of flow. Alignment is important for fit and routing, but it doesn’t by itself guarantee a leak-free condition. Corrosion is a longer-term concern and not the focus of this immediate physical check, and verification refers to confirming procedures or measurements rather than the pipe’s ability to hold pressure.