Geometrics Placement Paper - LOGIC GATES Questions

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1. The gate which is used to reverse the output obtained is

   A: NOR

   B: NAND

   C: X-OR

   D: NOT

   Ans: D

2. Which of the following gate will give a 0 when both of its inputs are 1?

   A: AND

   B: OR

   C: NAND

   D: X-OR

   Ans: C

3. The universal gate that can be used to implement any Boolean expression is ���.. gate.

   A: NAND

   B: X-OR

   C: OR

   D: AND

   Ans: A

4. The gate which is called as inverter gate

   A: NAND

   B: X-OR

   C: NOR

   D: NOT

   Ans: D

5. The AND gate is represented algebraically by

   A: +

   B: *

   C: --

   D: %

   Ans: B

6. The only gate that has 1 input and 1 output

   A: AND

   B: OR

   C: NOT

   D: X-OR

   Ans: C

7. The universal gate is

   A: NAND

   B: X-OR

   C: OR

   D: AND

   Ans: A

8. What combination is a NAND gate?

   A: NOT, AND

   B: NOT, OR

   C: NOT, NAND

   D: NOT, NOR

   Ans: A

9. What combination is a NOR gate?

   A: NOT, AND

   B: NOT, OR

   C: NOT, NAND

   D: NOT, NOR

   Ans: B

10. A NAND gate has inputs and outputs

    A: High input and high output

    B: High input and low output

    C: Low input and low output

    D: Low input and high output

    Ans: B

11. Who invented the idea of logic gates?

    A: George Boole

    B: Barden

    C: Claude Shannon

    D: Konrad Zuse

    Ans: A

12. Which of the following are the arithmetic logic gates?

    A: X-OR

    B: X-NOR

    C: Both

    D: None of the above

    Ans: C

13. Which of the following is not a logic gate?

    A: AND

    B: OR

    C: IF

    D: NOT

    Ans: C