111. Which of the following losses are significantly reduced by laminating the core of aD.C. generator ?
112. Which of the following method of speed control of D.C. machine will offer minimum efficiency ?
113. Which of the following motor has the poorest speed regulation ?
114. Which of the following motor is preferred for operation in highly explosive atmosphere ?
115. Which of the following motors is most suitable for signalling devices and many kinds of timers ?
116. Which of the following motors is usually used in house-hold refrigerators ?
117. Which of the following motors one will choose to drive the rotary compressor ?
118. Which of the following steps is likely to result in reduction of hysteresis loss in a D.C. generator ?
119. Which of the following tests will be suitable for testing two similar D.C. series motorsof large capacity ?
120. Which one of the following is not necessarily the advantage of D.C. motors over A.C. motors ?
MCQ Multiple Choice Questions and Answers on DC Motors
DC Motors Trivia Questions and Answers PDF
DC Motors Question and Answer
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