If a mobile offshore drilling unit has four hand portable fire extinguishers that can be recharged by personnel on the unit, how many spare charges must be carried?
A
1
B
2
C
3
D
4
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Question 1 / 205eccef9ebacbc34ba4d46306
Question 1 of 205eccef9ebacbc34ba4d46306
If a mobile offshore drilling unit has four hand portable fire extinguishers that can be recharged by personnel on the unit, how many spare charges must be carried?
If a mobile offshore drilling unit has four hand portable fire extinguishers that can be recharged by personnel on the unit, how many spare charges must be carried?