Ignition Switch的中文意思是（）。

For a given fuel, a change in the compression ratio will affect the ignition lag by which of the listed means?

A:An increase in compression ratio will increase the ignition lag B:An increase in compression ratio will decrease the ignition lag C:A decrease in compression ratio will decrease the ignition lag D:A decrease in ignition lag will increase the compression ratio

Although lube oils used in the main lubricating service systems should have a relatively high flash point to avoid ignition, they can create smoke and fire hazards when they _____.

A:are exposed to a vacuum B:come in contact with extremely hot surfaces C:are reduced in temperature to just above the pour point D:become extremely agitated or aerated

Which of the following statements describes the relationship between flash point and ignition temperature?

A:Both are higher than normal burning temperatures B:The flash point is always higher C:The ignition temperature is always higher D:They are not necessarily related

The lowest temperature at which a liquid gives off enough vapor to ignite in the presence of an ignition source is called its _____.

A:boiling point B:flash point C:viscosity point D:toxic point

The process that occurs when heat is generated by a chemical reaction within a substance and continues to a point of ignition is known as _____.

A:chemical ignition B:spontaneous combustion C:chemical combustion D:radiation ignition

The ignition quality of diesel fuel is indicated by its ＿.

A:octane number B:cetane number C:viscosity in Saybolt seconds D:air fuel ratio

The ignition quality of a diesel fuel oil is indicated by the ________.

A:specific gravity B:cetane number C:viscosity D:calorific valve

The ignition quality of a diesel fuel is indicated by the ________.

A:cetane number B:volatility point C:viscosity index D:octane number

The lowest temperature at which the vapor formed from a liquid ignites and continues to burn steadily in the presence of an ignition source is called the _____.

A:flash point B:fire point C:upper explosive limit D:lower explosive limit