51. The accurate ammeter must have a resistance of:
    

1. 1. very low value
      

   
   
   

   2. low value
      

   
   
   

   3. high value
      

   
   
   

   4. none of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   The accurate ammeter must have a resistance of very low value.

   Correct Option: A

   The accurate ammeter must have a resistance of very low value.

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52. Ionic wind voltmeter is used for measuring:
    

1. 1. high voltage
      

   
   
   

   2. low voltage
      

   
   
   

   3. leakage inductance
      

   
   
   

   4. interwinding capacitance

   
   
   

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1. View Hint View Answer Discuss in Forum

   Ionic wind voltmeter is used for measuring high voltage.

   Correct Option: A

   Ionic wind voltmeter is used for measuring high voltage.

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53. Series connection Q-meter is used for measuring ……… impedance component.
    

1. 1. low
      

   
   
   

   2. high
      

   
   
   

   3. both (a) and (b)
      

   
   
   

   4. none of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   Series connection Q-meter is used for measuring low impedance component.

   Correct Option: A

   Series connection Q-meter is used for measuring low impedance component.

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54. 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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55. A VTVM ……… measure current directly.
    

1. 1. can
      

   
   
   

   2. cannot
      

   
   
   

   3. either of the above
      

   
   
   

   4. none of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   Here alternative (d) is the most appropriate choice.
   

   Correct Option: D

   Here alternative (d) is the most appropriate choice.
   

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