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Three_phase + Transformer

Quiz by Ali alomran

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47 questions
Show answers
  • Q1
    .................. is a static device that changes electric voltage from one level to another without change of frequency.
    Fuse
    MCB
    An electrical transformer
    Three phase system
    30s
  • Q2
    Transformer operates on ac supply only
    True
    False
    30s
  • Q3
    In transformer operation, the primary and secondary windings are connected to each other electricity
    False
    True
    30s
  • Q4
    In transformer , the core is made up of thin laminated sheets to reduce
    eddy current losses
    Copper losses
    any losses
    30s
  • Q5
    Core-type transformers are popular in high voltage applications like distribution transformers, power transformers, and auto transformers
    True
    False
    30s
  • Q6
    The Image shows :
    Question Image
    Three phase Transformer
    Shell type Three-phase Transformer
    Core-type Three-phase Transformer
    30s
  • Q7
    Shell-type transformers are popular in low voltage applications (single phase transformers) like transformers used in electronic circuits and power electronic converters
    True
    False
    30s
  • Q8
    The Image shows :
    Question Image
    Shell-type transformers
    Three phase Transformer
    Core-type Three-phase Transformer
    30s
  • Q9
    The windings of Transformer are made
    Sivler
    copper conductors
    Gold
    30s
  • Q10
    .............. the winding to which the input voltage is applied
    Primary winding
    Secondary winding
    Two winding
    30s
  • Q11
    These are the winding to which the output voltage is applied
    Secondary winding
    Primary winding
    Any winding
    30s
  • Q12
    In High voltage winding , The conductor used will be thinner than that of the low voltage winding.
    False
    True
    30s
  • Q13
    In Low voltage winding ,the winding. is made of thick copper conductors
    True
    False
    30s
  • Q14
    In Low voltage winding ,the winding. is made of thick copper conductors Because :
    the current in the low voltage winding is higher than that of high voltage winding
    Nothing
    the current in the low voltage winding is Lower than that of high voltage winding
    30s
  • Q15
    Insulating paper , cardboard and Transformer oil are used in Transformer as
    Nothing
    Insulating Materials
    Conduction Materials
    30s

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