Answered

How often shall methane tests be made while electrical equipment is operated
in by the last open crosscut?
OA.
Once every hour
OB.
Once every 45 minutes
OC.
Once every 30 minutes
E.
At least every 20 minutes



Answer :

Final answer:

Methane tests should be conducted at least every 20 minutes for safety.


Explanation:

Methane tests should be made at least every 20 minutes while electrical equipment is operated to ensure safety and proper ventilation.


Learn more about Methane tests in electrical equipment operation here:

https://brainly.com/question/35551038


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