Question: 1. Mechanical devices are required for retrieving entrants form vertical confined spaces deeper than ______________________. a 5 feet b 10 feet c 15 feet d
1.
Mechanical devices are required for retrieving entrants form vertical confined spaces deeper than ______________________.
| a | 5 feet | |
| b | 10 feet | |
| c | 15 feet | |
| d | 20 feet |
2.
Of all confined-space fatalities, _____________________% are would-be rescuers.
| a | 40 | |
| b | 50 | |
| c | 60 | |
| d | 70 |
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