Q13
A Roadheader district produces 20 mg/m3 of airborne dust with the following size distribution: Size up to Cumulative wt% 1 μm 1 5 μm 5 10 μm 10 20μm 20 50μm 50 >50μm 100 The concentration of respirable fraction of dust in mg/m3 is
A Roadheader district produces 20 mg/m3 of airborne dust with the following size distribution:
The concentration of respirable fraction of dust in mg/m3 is
| Size up to | Cumulative wt% |
| 1 μm | 1 |
| 5 μm | 5 |
| 10 μm | 10 |
| 20μm | 20 |
| 50μm | 50 |
| >50μm | 100 |
A.
0.2
B.
2.0
C.
10.0
D.
1.0
AnswerAnswer: Option D
Solution
Answer: Option D
No explanation is given for this question Let's Discuss on Board