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| KNIFE SWITCH
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Knife switches were more commonly used in electrical panels in prior years and are electrical switches that open or close a circuit when one or more of the blades come into contact with one or more clips as the switch is manually raised or lowered to activate contact. |
| KNIFE WIDTH
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With planers and jointers, knife width refers to the number and width of knives that in turn determine the maximum size of materials that can be worked. |
| KNOB AND TUBE WIRING
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Formerly used type of house wiring where conductors are strung between porcelain knobs and porcelain tube are used to line the holes in the structural pieces where the wires pass. |
| KNOCK-DOWN TEXTURE
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Texture used on drywall, which is created by spraying coarse, randomly placed drops of texturing compound then using a trowel to flatten them. |
| KNOCKED DOWN
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Unassembled; refers to construction units requiring assembly after being delivered to the job. |
| KNOCKING OUT
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The temporary removal of a plant from its pot in order to check the condition of the root ball. |
| KNOCKOUT
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Removable metal discs in the sides of an electrical box which can be "knocked out" so that wiring can be run through them. |
| KNOCKOUT PLUG
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Plug used to close the knockout holes that are no longer need in an electrical box. |
| KNOT
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Hard section of a tree where a branch would grow out, which runs through a piece of wood, often loosening and coming out of the board, leaving a hole. |
| KNOT HOLE
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Dent or hole in a piece of wood where a knot comes out. |
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