One question per day
Thread Content
This post was last edited by hanyu*a8 on 2015-10-15 10:34. Assuming that among 7 welders in a company, those who are exposed to the highest concentrations of harmful substances for the longest periods of time can be identified, then when conducting individual sampling, ( ) of these workers should be selected as the subjects for sampling. When it is not possible to determine which workers have the highest exposure levels to harmful substances and the longest exposure duration, ( ) operators should be selected as the subjects for sampling. A 5 B 7 C 6 D 3
This post was last edited by ylb913 on 2015-10-14 at 19:32. The answer isn’t visible after replying; I’ve changed it as follows: Assuming that among 7 welders in a company, those who are exposed to the highest concentrations of harmful substances for the longest periods of time can be identified, then 3 of these workers should be selected as subjects for sampling. When it is not possible to determine which workers have the highest exposure concentration and longest exposure time to harmful substances, 6 operators should be selected as the sampling subjects.
Assuming that among 7 welders in a company, those who are exposed to the highest concentrations of harmful substances for the longest periods of time can be identified, then when conducting individual sampling, (3) of these workers should be selected as the subjects for sampling. When it is not possible to determine which workers have the highest exposure levels to harmful substances and the longest exposure duration, (6) operators should be selected as the subjects for sampling.
Assuming that among 7 welders in a company, those who are exposed to the highest concentrations of harmful substances for the longest periods of time can be identified, then when conducting individual sampling, (D) workers should be selected as the subjects for sampling. When it is not possible to determine which workers have the highest exposure concentration and longest exposure time to harmful substances, (C) operators should be selected as the subjects for sampling.
Assuming that among 7 welders in a company, those who are exposed to the highest concentrations of harmful substances for the longest periods of time can be identified, then when conducting individual sampling, (B) workers should be selected as the subjects for sampling. When it is not possible to determine which workers have the highest exposure concentration and longest exposure time to harmful substances, (C) operators should be selected as the subjects for sampling.
Assuming that among 7 welders in a company, those who are exposed to the highest concentrations of harmful substances for the longest periods of time can be identified, then when conducting individual sampling, (3) of these workers should be selected as the subjects for sampling. When it is not possible to determine which workers have the highest exposure concentrations and longest exposure times to harmful substances, (6) operators should be selected as the sampling subjects.
Assuming that among 7 welders in a company, those who are exposed to the highest concentrations of harmful substances for the longest periods of time can be identified, then when conducting individual sampling, (3) of these workers should be selected as the subjects for sampling. When it is not possible to determine which workers have the highest exposure levels to harmful substances and the longest exposure duration, (7) operators should be selected as the subjects for sampling.
D, C————–——–——–——––––––––––––––––––
Assuming that among 7 welders in a company, those who are exposed to the highest concentrations of harmful substances for the longest periods of time can be identified, then when conducting individual sampling, (D 3) of these workers should be selected as the subjects for sampling. When it is not possible to determine which workers have the highest exposure concentration and longest exposure time to harmful substances, (B 7) operators should be selected as the subjects for sampling. A 5 B 7 C 6 D 3
D 3 people ~~~~~~~~~~~~~~~~~~~~~C 6 people