241. The type of register, in which we have access only to left most and right most flip-flops is
     

1. 1. Shift left and shift right registers
      

   
   
   

   2. Serial in/serial out register
      

   
   
   

   3. Parallel in/serial out register
      

   
   
   

   4. Serial in/parallel out register
      

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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242. The counter which requires maximum number of flip-flop for a given MOD number is—
     

1. 1. Ripple counter
      

   
   
   

   2. BCD counter
      

   
   
   

   3. Ring counter
      

   
   
   

   4. Programmable counter
      

   
   
   

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1. View Hint View Answer Discuss in Forum

   The ring counter requires maximum number of flipflop for a given MOD number.

   Correct Option: C

   The ring counter requires maximum number of flipflop for a given MOD number.

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243. The table which shows the necessary levels at J and K inputs to produce every possible flip-flop state transition is called—
     

1. 1. Truth table of JK flip-flop
      

   
   
   

   2. Excitation table of JK flip-flop
      

   
   
   

   3. Excitation table of MOD-N counter using JK flip-flop
      

   
   
   

   4. None of these
      

   
   
   

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1. View Hint View Answer Discuss in Forum

   The excitation table of JK flip-flop shows the necessary levels at J and K inputs to produce every possible flip-flop state transition.

   Correct Option: B

   The excitation table of JK flip-flop shows the necessary levels at J and K inputs to produce every possible flip-flop state transition.

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244. The output frequency of a MOD-16 counter, checked from a 10 kHz clock input signal is—
     

1. 1. 10 kHz
      

   
   
   

   2. 26 kHz
      

   
   
   

   3. 160 kHz
      

   
   
   

   4. 625 kHz

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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245. The output frequency of a decode counter, which is clocked from a 50 kHz signal is—
     

1. 1. 5 kHz
      

   
   
   

   2. 50 kHz
      

   
   
   

   3. 500 kHz
      

   
   
   

   4. 5000 kHz

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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