176. An L.V.D.T.
     

1. 1. exhibits linear characteristics up to a displacement of ± 5 mm

   
   
   

   2. has a linearity of 0.05%

   
   
   

   3. has an infinite resolution and a high sensitivity which is of the order of 40 V/mm

   
   
   

   4. all of these

   
   
   

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   NA

   Correct Option: D

   NA

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177. Capacitive transducers are normally used for
     

1. 1. static measurements

   
   
   

   2. dynamic measurements

   
   
   

   3. both static and dynamic measurements

   
   
   

   4. transient measurements

   
   
   

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   NA

   Correct Option: B

   NA

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178. The dynamic characteristics of capacitive transducer are similar to those of

1. 1. low pass filters

   
   
   

   2. high pass filters

   
   
   

   3. notch filters

   
   
   

   4. band stop filters

   
   
   

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   NA

   Correct Option: B

   NA

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179. A capacitive transducer working on the principle of change of capacitances with change of displacement, exhibits non linear characteristic. The repose of these transducers can be made linear by using

1. 1. different arrangement

   
   
   

   2. use of an OPAMP

   
   
   

   3. working then over a small displacement range

   
   
   

   4. all of these

   
   
   

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   NA

   Correct Option: D

   NA

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180. Law of intermediate temperature in thermocouples allows them to

1. 1. reference junction compensation

   
   
   

   2. meters for measurement without disturbing the circuit conditions

   
   
   

   3. extension wires of materials other than one used for making thermocouples

   
   
   

   4. both (b) and (c)

   
   
   

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   NA

   Correct Option: D

   NA

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