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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