SDI measures
A)toxicity of smoke.
B)visibility through smoke.
C)rate of smoke generation.
D)amount of carbon dioxide in smoke.
E)none of the above.

Question

Quizplus · Accepted Answer

SDI (Specific Optical Density) measures visibility through smoke, which is important for firefighters to be able to see and navigate through the environment. Toxicity of smoke is measured by other methods, such as gas analysis, and the rate of smoke generation and amount of carbon dioxide in smoke are not directly related to SDI.

SDI Measures