126. Instrument used for DC measurement alone is:
     

1. 1. Moving iron type
      

   
   
   

   2. Permanent magnet type
      

   
   
   

   3. Electrodynamic type
      

   
   
   

   4. Induction type

   
   
   

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1. View Hint View Answer Discuss in Forum

   Permanent magnet type instrument is used for DC measurement only.
   

   Correct Option: B

   Permanent magnet type instrument is used for DC measurement only.
   

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127. The measuring instrument which utilize the electrostatic effect are:
     

1. 1. Ammeters and voltmeters
      

   
   
   

   2. Voltmeters and wattmeters
      

   
   
   

   3. Ammeters and wattmeters
      

   
   
   

   4. DC ampere hour meters and ammeters

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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128. Which of the φ following instruments consumes maximum power during measurement?
     

1. 1. Induction instrument
      

   
   
   

   2. Hot wire instrument
      

   
   
   

   3. Thermocouple instrument
      

   
   
   

   4. Electrodynomometer instrument

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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129. Which of the following instrument consumes the lowest power measurement?
     

1. 1. VTVM
      

   
   
   

   2. PMMC instrument
      

   
   
   

   3. Electrostatic instrument
      

   
   
   

   4. d′ Arsonval instrument

   
   
   

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1. View Hint View Answer Discuss in Forum

   Electrostatic instrument consumes lowest power among the given instrument.
   

   Correct Option: C

   Electrostatic instrument consumes lowest power among the given instrument.
   

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130. The instrument which is not a current operated instrument is:
     

1. 1. Electrodynamometer type
      

   
   
   

   2. Electrostatic type
      

   
   
   

   3. Hot wire instrument
      

   
   
   

   4. Moving coil instrument

   
   
   

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1. View Hint View Answer Discuss in Forum

   Hot wire instrument is not a current operated instrument.

   Correct Option: C

   Hot wire instrument is not a current operated instrument.

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