Important Electrical Machine Design Multiple Choice Questions and Answers


1.  The design of mechanical parts is particularly important in case of ...........speed machines


   A.High

   B.Medium

   C.Low

   D.All of these


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A. High

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2.  The major consideration to develop a good design is


   A. Durability

   B. Cost

   C. Compliance with performance criteria as laid down in specifications

   D. All of the above


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A. All of the above

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3.  In machines the size of the shaft is decided by the critical speed which depends on the deflection of the shaft


   A. Small

   B. Medium

   C. Large

   D. Any of the above


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C. Large

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4.  The length of airgap to be provided in............. is primarily determined by power factor consideration


   A. DC series motor

   B. DC shunt motor

   C. Induction motor

   D. Synchronous motor


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C. Induction motor

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5.  ..........Impose limitation on design


   A. Saturation

   B. Temperature rise

   C. Efficiency

   D. All of the above


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D. All of the above

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