6. Minterms coresponding to decimal number 15 is

1. 1. ABCD

   
   
   

   2. ABCD

   
   
   

   3. A + B + C + D

   
   
   

   4. A + B + C + D

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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7. Which of the following is the truth table of the given logic is true?
   

1. 1. 

   
   
   

   2. 

   
   
   

   3. 

   
   
   

   4. 

   
   
   

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1. View Hint View Answer Discuss in Forum

   

   Correct Option: A

   

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8. The gate shown in the figure is
   

1. 1. AND gate

   
   
   

   2. NAND gate

   
   
   

   3. NOT gate

   
   
   

   4. OR gate

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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9. Consider the given circuit.
   
   In this circuit, the race around

1. 1. does not occur

   
   
   

   2. occurs when CLK = 0

   
   
   

   3. occurs when CLK = 1 and A = B = 1

   
   
   

   4. occurs when CLK = 1 and A = B = 0

   
   
   

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1. View Hint View Answer Discuss in Forum

   
   Q_next = A.CLK.Q = A.CLK + Q
   Q_next = A.CLK + Q
   
   Thus race around does not occur in the circuit

   Correct Option: A

   
   Q_next = A.CLK.Q = A.CLK + Q
   Q_next = A.CLK + Q
   
   Thus race around does not occur in the circuit

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10. For the identity AB + AC + BC = AB + A C, the dual form is

1. 1. (A + B) (A + C)(B + C) = (A + B)(A + C)

   
   
   

   2. (A + B) (A + C)(B + C) + (A + B)(A + C)

   
   
   

   3. (A + B) (A + C)(B + C) = (A + B)(A + C)

   
   
   

   4. AB + AC + BC + AB + AC

   
   
   

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1. View Hint View Answer Discuss in Forum

   Changing + sign to × and vice-versa

   Correct Option: A

   Changing + sign to × and vice-versa

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