196. Identify the universal gate from the following gates—

1. 1. OR gate

   
   
   

   2. AND gate

   
   
   

   3. X-OR

   
   
   

   4. NAND

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   NA

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197. The output of a gate is 1 only for number of high inputs, what is that gate?

1. 1. X-NOR

   
   
   

   2. X-OR

   
   
   

   3. NAND

   
   
   

   4. NOR

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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198. The output of a gate is 1 if and only if all the inputs of that gate are high, what is that gate?

1. 1. NOT

   
   
   

   2. NAND

   
   
   

   3. NOR

   
   
   

   4. AND

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   NA

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199. NAND-NAND circuits are equivalent to—

1. 1. AND-OR circuits

   
   
   

   2. OR-XOR circuits
      

   
   
   

   3. OR-NOT circuits

   
   
   

   4. All of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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200. According to De Morgan’s second theorem—

1. 1. A NAND gate is always complimentary to an AND gate

   
   
   

   2. An AND gate is equivalent to a bubbled NAND gate

   
   
   

   3. A NAND gate is equivalent to a bubbled AND gate

   
   
   

   4. A NAND gate is equivalent to a bubbled OR gate

   
   
   

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1. View Hint View Answer Discuss in Forum

   
   Hence alternative (D) is the correct answer.
   

   Correct Option: D

   
   Hence alternative (D) is the correct answer.
   

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