An easy to follow guide on how to buy and store the cryptocurrency Dent (DENT) An easy to follow guide on how to buy and store the cryptocurrency Dent (DENT) more guides
The correct answer among the choices given is option B. The length of the metal threads at the end of a spark plug is called the insulator. The insulator is the main part of a spark plug and is typically made from alumina. This is a very hard ceramic material with high dielectric strength.
At the top of the spark plug sits the connector, or terminal. This is where the spark plug wire attaches. The terminal connects inside the plug to the copper core of the center electrode, which is surrounded by insulation. Next comes the hex head. This is where the socket wrench fits for tightening and loosening the plug in its hole in the engine.