Which test is named System Drop Test among the tests and inspections to be performed?

• A. Joint Tightness Test
• B. Valve Seat Tightness Test
• C. Hydrostatic/Pneumatic Test
• D. System Drop Test

Answer: (D)

System Drop Test is the test that checks how the system behaves under a drop or impact. While Joint Tightness and Valve Seat Tightness focus on leaks at joints and valve seals, and Hydrostatic/Pneumatic Test checks pressure containment with fluid or gas, none of those simulate mechanical shocks from a drop. The System Drop Test specifically targets the system’s ability to withstand accidental drops and impacts without structural failure or leakage, which is why it is the best answer.