chirp. The real usage is derived from the walkie talkie feature on phones, but the meaning is broad and encompasses various facets of life. Scheming on girls/guys: Yea, I have been chirping at her for a while but she won't let me hit it.
Flammability is determined by the flash point of a material. Flash point is the minimum temperature at which a liquid forms a vapor above its surface in sufficient concentration that it can be ignited. Flammable liquids have a flash point of less than 100Â°F. Liquids with lower flash points ignite easier. Combustible liquids have a flashpoint at or above 100Â°F.
The fire point is defined as the lowest fuel temperature at which the diffusion flame is sustained longer than 5 s above the fuel pool without any external heat supply. The fire point for engine oils is usually 20-30 higher than flash point.