Which of the following types of motor enclosure is the safest A) Totally enclosed B) Totally enclosed fan cooled C) Open type D) Semi-closed Related MCQs: One D.C. motor drives another D.C. motor. The second D.C. motor when excited and driven Slip ring motor is preferred over squirrel cage induction motor where The safest value of current the human body can carry for more than 3 seconds is For a motor-generator set which of the following motors will be preferred