Question 28Safety & Environmental - Assistant Engineer70% to pass
The reading of a combustible gas indicator indicates the percentage of the _______________.
AI Explanation
The correct answer is A) the lower explosive limit of a flammable gas concentration.
A combustible gas indicator measures the percentage of the lower explosive limit (LEL) of a flammable gas. The LEL is the minimum concentration of a flammable gas in air below which the mixture will not ignite. Reading the LEL percentage allows you to determine how close the gas concentration is to the explosive range. Options B, C, and D do not accurately describe what a combustible gas indicator measures.
Related Questions
#26 A tank has been sealed and unventilated for a long period of time. Which of the following statements is true? #27 Before entering any space that has been sealed, its oxygen level should be tested. What level of oxygen in the space is equal to fresh air? #29 Combustible gas indicators incorporate the use of a/an _______________.#30 Before entering a fuel tank that has been cleaned, it should be checked with an oxygen indicator and a/an _______________.#31 An oxygen indicator will detect _______________.