Which of the following is a step in estimating the consequences of releasing a hazardous...

According to API 580, Section 10.6.1:

“The consequences of releasing a hazardous material can be estimated in six steps…

a) estimate the release rate;

b) estimate total volume of fluid…

c) determine if the fluid disperses…”

Therefore, “Estimating the release rate” is the first step in the consequence evaluation process and is essential for modeling potential impact scenarios.