ARTICLES

Tiny shards of spark plug porcelain have small hard points which allow them to easily find a breaking point in glass. They can also be used to break the side window of vehicles. Spark plug porcelain fragments are sometim...

www.reference.com/world-view/spark-plug-porcelain-break-glass-1cef09016e3d3e5e

In order to break a car window's tempered glass, the porcelain insulator inside of a spark plug can be used. Unglazed porcelain is rated 7 on the Mohs scale of mineral harness, while glass is rated 5.5.

www.reference.com/article/break-window-spark-plug-bf6745278a448dab

Different display cases use different types of glass; some glasses can shatter easily, while others are much tougher. Display cases made of safety glass, such as tempered glass and laminated glass, are stronger than case...

www.reference.com/article/can-glass-glass-display-case-break-easily-3987bf6459fb6b39

SIMILAR ARTICLES

In order to break a car window's tempered glass, the porcelain insulator inside of a spark plug can be used. Unglazed porcelain is rated 7 on the Mohs scale of mineral harness, while glass is rated 5.5.

www.reference.com/article/break-window-spark-plug-bf6745278a448dab

In order to test the spark, pull the spark plug from the engine, and then start the car. There should be a bright blue spark between the electrodes every time the cylinder fires, provided that there is enough voltage rea...

www.reference.com/world-view/way-test-12-volt-ignition-coil-a238cf3eea47ea10

Parts and tools needed for a car's tune-up include spark plugs, a fuel filter, a socket wrench, a spark plug socket, a spark plug gapping tool, the service manual, screwdrivers, crescent wrenches, a distributor cap, spar...

www.reference.com/world-view/parts-needed-tune-up-3b4c52f753a98590

An automobile tune-up consists of a check of a vehicle's fuel filter, air filter, spark plugs, spark plug wires and battery. The PCV valve, belts, lights and tires are also checked. An oil change is performed and the car...

www.reference.com/world-view/automobile-tune-up-consist-bd0dd9a80fed3fab