Which of the following motor is preferred for operation in highly explosive atmosphere ?
Correct answer: C. Air motor
- A. Series motor
- B. Shunt motor
- C. Air motor
- D. Battery operated motor
Explanation
An air motor has no electrical sparks, hot electrical windings, or commutator, so it is safer in an explosive atmosphere. Electrically commutated DC motors can ignite flammable vapours.
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