Exam (elaborations)
Wastewater Class 2 multiple choice Exam Questions And Rated A+ 2024.
- Course
- Institution
The threahold limit value concentration for chlorine vapour is: a. 0.1 ppm b. 0.3 ppm c. 0.5 ppm d. 1.0 ppm - Answer c. 0.5ppm When working in confined spaces where flammable gasesmay be present, use only tools made of: a. stainless steel b. lead c. iron d. a non-sparking alloy - Answe...
[Show more]