Question 28 of 30
What factor mainly affects Vapour cloud dilution rate?
A
Quantity of Spill
B
Weather conditions
C
Thermal inversion
D
Diameter of the vapour cloud
Advertisement
Answer & Explanation
The correct answer is Option B: Weather conditions.
Weather conditions, specifically wind speed and direction, are the primary drivers for vapor cloud dispersion and dilution. They dictate how quickly a released gas plume is mixed with fresh air, reducing its concentration below the LFL.