| 1. | The Boolean expression ABC + A’B’C + ABC’ + A’B’C’ ? | |
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OR GATE
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AND GATE
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EX-NOR GATE
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EX-OR GATE
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Report Question| 2. | The Boolean function (x+y) (x’+z) (y+z) is equal to which one of the following expressions ? | |
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(x+y) (y+z)
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(x’+y) (y+z)
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(x+y)(x’+z)
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(x+y)(x+z’)
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| 3. | The open collector outputs of two 2-input NAND gates are connected to a common pull-up resistor. If the inputs of the gates are A, B and C, D respectively, the output is equal to ? | |
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(A.B)’.(C.D)’
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(A.B)’+(C.D)’
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A.B+C.D
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A.B C.D
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| 4. | The AND function can be realized by using only n number of NOR gates. What is n equal to ? | |
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2
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3
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4
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5
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| 5. | For the identity AB+ AC + BC = AB+ AC the dual form is ? | |
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(A + B) (A’+C) (B+C) = (A + B) (A’ + C)
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(A’ + B’) (A+C’) (B’+C’) = (A’ + B’) (A + C’)
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(A + B) (A’+C) (B+C) = (A’ + B’) (A + C)
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A’B’+ AC’ + B’C’ = A’B’ + AC’
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| 6. | The open collector outputs of two 2-input NAND gates are connected to a common pull up resistor. If the inputs to the gates are P, Q, and R, S respectively. The output is equal to ? | |
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P-Q, R.S.
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PQ+ RS
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P.Q+R.S
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P.Q.R.S
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| 7. | The dual of x ((yz)’ + yz) is ? | |
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x+(y’+z’) (y+z)
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x (y’+z’) + (y+z)
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x + (y’z’+y+z)
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x+y’z’+yz
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| 8. | The complement form of A(B+C)(C+ D) is ? | |
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A+ BC+DC
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A+ BC + CD
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A + BC
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A+BC+CD
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| 9. | The complement of the expression Y = ABC + ABC’ + A’B’C + A’BC is ? | |
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(A+B’) (A+C’)
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(A’ + B) (A + C)
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(A+B’) (A’+C)
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(A’ + B’) (A+C’)
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| 10. | The complement of the Boolean expression AB.(B’C + AC) is ? | |
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(A’+B’) + (B+C’) (A’+C’)
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(A’B’)+(BC’+ (AC)’)
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(A’ + B’) (B+C’) (A’ + C’)
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(A+B) (B’+C) (A+C)
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