Semiconductor Electronics

The output (Y) of the given logic implementation is similar to the output of an/a gate. [figure]

1. OR
2. NOR
3. AND
4. NAND

A logic circuit provides the output Y as per the following truth table : [figure] The expression of the output Y is :

1. A B + A
2. A B + A
3. B
4. B

The output (Y) of the given logic gate is similar to the output of an/a [figure]

1. NAND gate
2. NOR gate
3. OR gate
4. AND gate

When the output of an OR gate is applied as input to a NOT gate, then the combination acts as a

1. NAND gate
2. NOR gate
3. AND gate
4. OR gate

The output Y for the inputs A and B of the given logic circuit is: [figure]

1. A B
2. A B
3. A + B
4. A + B

For the following logic circuit, the truth table is: [figure]

1. [figure]
2. [figure]
3. [figure]
4. [figure]

[figure] The truth table for the given logic circuit is

1. [figure]
2. [figure]
3. [figure]
4. [figure]

[figure] Identify the equivalent logic gate represented by the given circuit

1. NAND
2. OR
3. NOR
4. AND

For the given circuit, the input digital signals are applied at the terminals A, B and C. What would be the output at the terminal y? [figure]

1. [figure]
2. [figure]
3. [figure]
4. [figure]

For the logic circuit shown, the truth table is : [figure]

1. [figure]
2. [figure]
3. [figure]
4. [figure]

The correct Boolean operation represented by the circuit diagram drawn is : [figure]

1. OR
2. NAND
3. NOR
4. AND

In the combination of the following gates the output Y can be written in terms of inputs A and B as [figure]

1. A.B
2. A. B + A.B
3. A. B + A.B
4. A + B

The given electrical network is equivalent to [figure]

1. OR gate
2. NOR gate
3. NOT gate
4. AND gate

To get output 1 for the following circuit, the correct choice for the input is [figure]

1. A = 1, B = 1, C = 0
2. A = 1, B = 0, C = 1
3. A = 0, B = 1, C = 0
4. A = 1, B = 0, C = 0

What is the output Y in the following circuit, when all the three inputs A, B, C are first 0 and then 1? [figure]

1. 0, 1
2. 0, 0
3. 1, 0
4. 1, 1

Which logic gate is represented by the following combination of logic gates? [figure]

1. AND
2. NOR
3. OR
4. NAND

The output (X) of the logic circuit shown in figure will be [figure]

1. X = A . B
2. X = A + B
3. X = A . B
4. X = A . B

The output from a NAND gate is divided into two in parallel and fed to another NAND gate. The resulting gate is a [figure]

1. AND gate
2. NOR gate
3. OR gate
4. NOT gate

To get an output Y = 1 in given circuit which of the following input will be correct ? [figure]

1. A 1, B 0, C 0
2. A 1, B 0, C 1
3. A 1, B 1, C 0
4. A 0, B 1, C 0

The figure shows a logic circuit with two inputs A and B and the output C. The voltage wave forms across A, B and C are as given. The logic circuit gate is [figure]

1. OR gate
2. NOR gate
3. AND gate
4. NAND gate

Symbolic representations of four logic gates are shown as [figure] Pick out which ones are for AND, NAND and NOT gates, respectively

1. (ii), (iii) and (iv)
2. (iii), (ii) and (i)
3. (iii), (ii) and (iv)
4. (iii), (iv) and (ii)

The following figure shows a logic gate circuit with two inputs A and B and the output Y. The voltage waveforms of A, B and Y are as given. [figure] The logic gate is

1. NOR gate
2. OR gate
3. AND gate
4. NAND gate

To get an output Y = 1 in given circuit which of the following input will be correct? [figure]

1. A 1, B 0, C 0
2. A 1, B 0, C 1
3. A 1, B 1, C 0
4. A 0, B 1, C 0

The device that can act as a complete electronic circuit is

1. junction diode
2. integrated circuit
3. junction transistor
4. zener diode

The symbolic representation of four logic gates are given below [figure] The logic symbols for OR, NOT and NAND gates are respectively

1. (iv), (i), (iii)
2. (iv), (ii), (i)
3. (i), (iii), (iv)
4. (iii), (iv), (ii)

In the following circuit, the output Y for all possible inputs A and B is expressed by the truth table. [figure]

1. [figure]
2. [figure]
3. [figure]
4. [figure]

The following figure shows a logic gate circuit with two inputs A and B and the output C. [figure] The voltage waveforms of A, B and C are as shown below. [figure] The logic circuit gate is

1. OR gate
2. AND gate
3. NAND gate
4. NOR gate

The output of OR gate is 1

1. if both inputs are zero
2. if either or both inputs are 1
3. only if both inputs are 1
4. if either input is zero

The given truth table is for which logic gate? [figure]

1. NAND
2. XOR
3. NOR
4. OR.

The given truth table is for which logic gate [figure]

1. NAND
2. XOR
3. NOR
4. OR