Stroke
Stroke turns up in 2 fields: valves, building. Here is what it means to the people in each one.
Stroke in valves
To run an automated valve through its full travel to prove it moves, seats and reports position correctly.
As a noun, stroke is the full travel from closed to open, and stroke time is how long that takes. As a verb, stroking a valve means commanding it open and closed, watching the travel, timing it, and confirming the limit switches and position feedback match. Valves are stroked after maintenance, before startup, and on a schedule for shutdown valves.
"Stroke XV-2104 from the board, I'll watch it in the field and call out when the open light comes in."
Stroke in building
To carve fine, parallel fluted lines into the face of a stone block.
To dress the exposed surface of an ashlar block by cutting a series of fine, parallel grooves or flutes. This traditional stonemasonry technique creates a textured, decorative finish that catches the light and hides minor natural flaws in the rock.
"The spec calls for the lintels to be stroked to match the historic texture of the original facade."