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Q. No.
In the circuit shown, \(5~\text{V}\) represents TRUE (binary \(1\)) and \(0~\text V\) represents FALSE (binary \(0\)). The diodes are ideal. \(A,B,C\) are the inputs and \(Y\) the output. What logic does the circuit represent?
                    
1. AND \((A,B,C)\) 2. OR \((A,B,C)\)
3. NOT \(\bigg(\text{AND }(A,B,C)\bigg)\) 4. NOT \(\bigg(\text{OR }(A,B,C)\bigg)\)
Subtopic:  Logic gates |
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If an AND-gate and an OR-gate are OR-ed together, the resulting gate is:
1. AND
2. OR
3. XOR
4. none of the above
Subtopic:  Logic gates |
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The output \((Y)\) of the digital logic circuit shown in the diagram is:
1. \(A~\text{AND}~B~\text{AND}~C\) 2. \((A~\text{AND}~B)~\text{OR}~C\)
3. \(B~\text{OR}~C\) 4. none of these
Subtopic:  Logic gates |
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​The truth table for a circuit is given by: 
\(A\) \(B\) \(C\) \(Y\) (Output)
\(1\) \(X\) \(1\) \(1\)
\(0\) \(1\) \(X\) \(1\)
All other cases \(0\)
Here, \(X\) represents either \(0\) or \(1\). \(A,B,\) and \(C\) are the inputs. Which of the following is the correct circuit? ​
1.
2.
3.
4.
Subtopic:  Logic gates |
 53%
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By writing down the truth table or otherwise, determine the output \(X\) of the circuit given below.
                     
1. \(A\) 2. \(B\)
3. \(A~\text{or}~B\) 4. NOT \((A)\)
Subtopic:  Logic gates |
 56%
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The output of the above circuit is:
1. (\(A\) AND \(B\)) 2. (\(A\) OR \(B\))
3. (\(B\) OR \(C\)) 4. none of the above
Subtopic:  Logic gates |
 55%
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The output of the circuit given in the diagram is:
1. \(A\) AND \(B\) 2. \(A\) OR \(B\)
3. \(A\) 4. \(B\)
Subtopic:  Logic gates |
 58%
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Which of the following represents a circuit that gives an output (i.e. true) when both its inputs are equal?
1.
2.
3.
4.
Subtopic:  Logic gates |
 57%
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The output \((Y)\) of the logic circuit given above is:
             
1. \(A\) AND \(C\)
2. \(A\) OR \(C\)
3. always TRUE
4. always FALSE
Subtopic:  Logic gates |
 59%
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Consider the circuit shown in the above diagram. The output \((Y)\) of the circuit does not depend on \(A.\) Then, \(Y=\)
                         
1. \(B\) AND \(C\)
2. \(B\) OR \(C\)
3. \(B\)
4. \(C\)
Subtopic:  Logic gates |
 68%
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