Question 39 of 200 tasco Exam
What is Upper flammable limit?
A The limit for man entry of personnel into tanks
B The concentration of a hydrocarbon gas in air above which there is insufficient oxygen to support combustion
Correct
C The limit where there is insufficient inert gas to support combustion
D The limit where there is too much inert gas to support combustion
Answer & Explanation
The correct answer is Option B: The concentration of a hydrocarbon gas in air above which there is insufficient oxygen to support combustion.
This question is frequently asked in the DG Shipping exit exams for maritime courses. Practicing similar questions in the interactive simulator helps improve recall and exam success.