Which of the following drives is suitable for mines where explosive gas exists ?
Correct answer: C. Battery locomotive
- A. Steam engine
- B. Diesel engine
- C. Battery locomotive
- D. Any of the above
Explanation
A battery locomotive avoids combustion and hot exhaust gases, so it does not provide an ignition source for explosive mine gases. Steam and diesel engines involve combustion and are therefore unsuitable in such conditions.
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