| 1. | The Boolean equation X=[(A + B’) (B+C)] B can be simplified to ? | |
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X=A’B
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X= AB’
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X= AB
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X=A’B’
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Report Question| 2. | The correct expression is ? | |
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AB+AB AB(A + B)
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AB+ AB= AB(A + B)
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AB+ AB=AB(A + B)
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AB+ AB=AB(A + B)
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| 3. | The simplified form of a logic function Y =[(AB’)’. (A’B)’]’ is ? | |
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A + B
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AB
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A + B
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AB+ AB
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| 4. | The logical expression y= A + A’B is equivalent to ? | |
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y= AB
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y= A’B
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y= A’ + B
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y = A+B
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| 5. | Which one of the following statements is correct ? | |
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Static 1 hazard may occur in a 2-level AND-OR gate network
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Static O hazard may occur in a 2-level AND-OR gate network
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Dynamic hazard may occur in a 2-level OR-AND gate network
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Essential hazards may occur in a combinational logic circuit
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| 6. | An XOR gate produces output only when two inputs are ? | |
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high
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low
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different
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equal
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| 7. | NAND operation with x and y inputs is ? | |
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(x+y)’
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x’+y’
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x’y’
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(x’+y’)(x+y)
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| 8. | The complete set of only those Logic Gates designated as Universal Gates is ? | |
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NOT, OR and AND Gates
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XNOR, NOR and NAND Gates
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NOR and NAND Gates
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XOR, NOR and NAND Gates
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| 9. | When one input of an EX-OR gate is connected to logic 1. it functions as ? | |
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NOT gate
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OR gate
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EX-OR gate
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NOR gate
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| 10. | The output of a logic gate is '1' when all its inputs are at logic "0". Then the gate is either ? | |
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a NAND or an EX-OR gate
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a NOR or an EX-NOR gate
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an OR or an EX-NOR gate
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an AND or an EX-OR gate
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