☰ Electrical Machine Design (Electrical Engineering) - MCQs

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Q13.

the tap changing facility is usually provided on ________ transformers

  • A. high voltage
  • B. distribution
  • C. current
  • D. all of these
    ✍ Discuss    
Q14.

a transformer is considered to have a network or series capacitance due to

  • A. laminated core
  • B. earthling
  • C. intern turn insulation
  • D. surrounding tank
    ✍ Discuss    
Q15.

with increase in voltage, the windows space factor of a transformer

  • A. decreases
  • B. increases
  • C. remains constant
  • D. decreases or increases depending upon whether it is a distribution of power transformer
    ✍ Discuss    
Q16.

the primary and secondary windings are interlaced for

  • A. easiness of coil making
  • B. reduced leakage reactance
  • C. reduced cost
  • D. uniform heating
    ✍ Discuss    
Q17.

helical windings are employed in ______ transformers

  • A. distribution
  • B. power
  • C. shell type
  • D. none of these
    ✍ Discuss    
Q18.

multi step core is used in transformer to

  • A. increase the output
  • B. decrease the cost of core material
  • C. decrease the cost of copper
  • D. increase the efficiency
    ✍ Discuss    
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