Predicting Meter Readings 14
LEL conversions to PPM review: LEL reading % times CF times PLEL% = ? ÷ 100 = ?% times 10,000 = ? PPM LEL % x CF x PLEL% = ? ÷ 100 = ?% x 10,000 = ? PPM 10% x 3.4x 4% = 136 ÷ 100 = 1.36% x 10,000 = 13,600 PPM
Predicting Meter Readings 23
In reference to question #22, you have determined that the predicted LEL is 234%. TEA has an LEL of 1.2% and a UEL of 8%. Which of the following is correct? 2.5 CF x 1.2 PLELx 234% ÷ 100 = 7.02% 1. 7% is below the LEL 2. 7% is above the UEL 3. 7% [...]
Predicting Meter Readings 24
In refernece to question 23, conditions are in the flammable range. What strategies must be employed? 1. vent and burn 2. personal protective controls 3. administrative controls 4. engineering controls
General Question 65
The action level of 25% LEL concentration to be a withdrawl point for entry teams comes from which of the following?