1. The main advantage of DM over PCM is—
   

1. 1. Less bandwidth
      

   
   
   

   2. Less power
      

   
   
   

   3. Better S/N ratio
      

   
   
   

   4. Simple circuitry

   
   
   

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1. View Hint View Answer Discuss in Forum

   The main advantage of DM over PCM is simple circuitry.

   Correct Option: D

   The main advantage of DM over PCM is simple circuitry.

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2. The information capacity of narrow-pulse systems is—
   

1. 1. Low
      

   
   
   

   2. Of medium range
      

   
   
   

   3. High
      

   
   
   

   4. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   The information capacity of narrow pulse systems is high.

   Correct Option: C

   The information capacity of narrow pulse systems is high.

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3. Narrow pulse systems require—
   

1. 1. Zero bandwidth
      

   
   
   

   2. Smaller bandwidth
      

   
   
   

   3. Greater bandwidth
      

   
   
   

   4. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   Narrow pulse systems require greater bandwidth.

   Correct Option: C

   Narrow pulse systems require greater bandwidth.

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4. In a DM system, the granular noise occurs when modulating signal—
   

1. 1. Increases rapidly
      

   
   
   

   2. Decreases rapidly
      

   
   
   

   3. Changes within the step size
      

   
   
   

   4. Has high frequency component

   
   
   

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1. View Hint View Answer Discuss in Forum

   In a DM system, the granular noise occurs when modulating signal changes within the step size.

   Correct Option: C

   In a DM system, the granular noise occurs when modulating signal changes within the step size.

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5. The sampling theory is applicable to bandlimited time functions which are—
   

1. 1. Continuous
      

   
   
   

   2. Single valued
      

   
   
   

   3. Both and
      

   
   
   

   4. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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