Daily Safety and Fire Protection Question (12.22)
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Multiple-choice questions: 1. Under specified test conditions, the lowest temperature at which a mixture formed by the vapor of a liquid that has evaporated and air can catch fire when exposed to an ignition source (as determined using the closed-cup method) is called ( ). A. Flash point B. Autoignition point C. Ignition point D. Point of combustion 2. Combustion is an exothermic reaction that occurs when a combustible material reacts with an oxidizer, and it is usually accompanied by ( ) phenomena. A. Luminescence B. Smoking C. Flame D. Flame, luminescence and/or smoking Correct answers: AD
A-------------D
1. Flash point； 2. Flame, luminescence and/or smoking
1. A, Flash point 2. D, Flame, luminosity and/or smoking