1) Which of the following is not analogue signal ?
2) How many NAND gates are required to make an OR gate ?
3) Statement 1 : NAND or NOR gates are called digital building blocks. Statement 2 : The repeated use of NAND ( or NOR ) gates can produce all the basic or complicated gates
4) Statement 1 : NOT gate is also called invertor circuit. Statement 2 : NOT gate inverts the input order.
5) The circuit above behaves as
6) If all the NOR gate in the circuits are replaced by NAND gates, the circuit would perform the logic operation of
7) The output of OR gate is 1
8) The boolean expression for NAND gate is
9) If A = 1 and B = 0, then A.A + B in the boolean expression is equal to
10) Which of the following is the logic symbol of NAND gate ?
11) If one terminal of an XOR gate is kept at 1, the output will be zero when the other terminal is at
12) In boolean algebra, which of the following is not equal to zero
13) Which of the following is not correct ?
14) An AND gate can be prepared by repetitive use of
15) The number of NAND gates required to make NOT gate is
16) Statement 1 : In a two input NAND gate if one of the inputs is kept high, it acts as an inverter. Statement 2 : A low input produces a high output in NAND gate
17) The logic gate circuit is
18) Which one of the following cirucits would give waveforms as given in the passage above
