Diving UK legislation 1

बाहर जाएं

सवाल 1 of 1

  शेष समय


0
349777
0
30
block

Beyond what depth is it compulsory to have a surface compression chamber on site on offshore installations?

सही उत्तर का चयन करें  

(0/0)












349778
0
30
none
349779
0
30
none
349780
0
30
none
349781
0
30
none
349782
0
30
none
349783
0
30
none
349784
0
30
none
349785
0
30
none
349786
0
30
none
349787
0
30
none
349788
0
30
none
349790
0
30
none
349791
0
30
none
349792
0
30
none