Which term refers to a continuous stream of liquid escaping from a hose, pipe, coupling, or other confining structure where escape should not occur?

• A. Leak
• B. Live Load
• C. Pilot Valve
• D. Micron

Answer: (A)

When liquid escapes from a hose, pipe, coupling, or other confinement in an uncontrolled, continuous way, that is a leak. The idea is an undesired loss of fluid from a contained system, indicating containment has failed and fluid is flowing where it shouldn’t. This matter matters in hydraulic and plumbing systems because leaks waste fluid, reduce performance, and can create safety hazards. The other terms don’t describe the escape itself: a live load is about weight acting on a structure, a pilot valve is a control device for flow, and a micron is a unit used to measure particle size or filter rating.