Question 211Electricity & Electronics - QMED

The correct answer is C) the maximum temperature rise above an ambient temperature of 40°C. The "degrees centigrade rise" listed on the nameplate refers to the maximum allowable temperature rise of the motor above an ambient temperature of 40°C. This is a requirement specified in electrical codes and standards for the design and rating of electric motors. The motor must be able to operate at its full load rating without exceeding this maximum temperature rise, which helps ensure the motor's reliability and safe operation. The other options are incorrect because they do not accurately represent the meaning of the "degrees centigrade rise" information on the nameplate. Options A and B do not specify the reference ambient temperature, and option D refers to an absolute temperature scale, which is not relevant in this context.