Quiz 7- Confined Space Chegg Study | Guided Sc | i Secure | https://moodle.oakla
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Quiz 7- Confined Space Chegg Study | Guided Sc | i Secure | https://moodle.oakland.edu/mod/quiz/attempt.php?attempts2793652&page;:1 Five reasons you sho Eckamon -The Magic W TL Apps Bookmarks A Do we have to grow Other bookmarks 148 My Courses Students Faculty Get Help Nicholas Maloney EHS-334-32549.201730-Applied Occupational Hygiene Dashboard EHS334-32549. 201 730 July 12-July 18 Quz 7-Confined Space Entry. Detector Tubes and Nose QUIZ NAVIGATION Question 2 Answer saved Points out of 3.00 correction factor for this instrument for hexane is 1.67 (You must show your work to recelve credit.) A combustible gas meter is used in a confined space and it reads 6% of the LEL. That meter was calibrated with isobutylene (LEL 1.8%). If the space actually contains hexane, what is the actual percent LEL of hexane it the LEL tor hexane is 1.1% and the Flag question Finish attempt.. Time left 0:43:02 96" CF= actual LEL 508 PM Type here to search ^7/19/2017Explanation / Answer
The correction factor is the reciprocal of the relative response
• Consider a detector calibrated on methane, then used to monitor ethanol
• When calibrated on methane, the sensor shows a relative response to ethanol of 0.8
• In other words, the readings will be 20% lower than actual
• The correction factor would be calculated as:
1/0.8
= 1.25
In given question.
• Multiplying the instrument reading by the correction factor for Hexane provides the true concentration.
• Given a correction factor for Hexane is 1.6, and an instrument reading of 6 per cent LEL, the true concentration would be calculated as:
Instrument Reading* Correction Factor=LEL True Concentration
6*1.6 = 9.6% answer
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