1. 5.24 As you enter a bunded/fire wall area to sample a fuel oil tank, you begin to feel dizzy. What action should you take?1) a. Get out of the tank area immediately
2) b. Take a deep breath and run for the tank ladder
3) c. Lie down because there is more oxygen closer to the ground
4) d. Immediately put on your respirator with organic cartridges
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2. 5.18 A hard hat s most important feature, when worn, is the distance between the shell and the wearer s head.1) a. True
2) b. False
3)
4)
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3. 5.51 What does an explosimeter (explosion meter) measure?1) a. The amount of oxygen in a space
2) b. Whether a space is safe for entry
3) c. Whether or not there is an explosive atmosphere in a space
4) d. The flash point of a gas mixture.
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4. 5.80 Refineries are not the only sources of industrial hydrogen sulfide (H2S). Which of the following are other sources?1) a. Pulp Mills
2) b. Any agricultural facility where decay of organic matter may occur
3) c. Drilling Rigs
4) d. Answers a., b. and c. are all correct
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5. 5.78 What is the maximum permissible 8 hour TWA (time weighted average) exposure level of hydrogen sulfide?1) a. 5 ppm (10 ppm in USA)
2) b. 15 ppm (20 ppm in USA)
3) c. 25 ppm (50 ppm in USA)
4) d. 30 ppm (60 ppm in USA)
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