Digital Electronics Quiz Vol-1

1. Applying DeMorgan’s theorem to the expression , we get ________

2. An AND Gate of 3 inputs, 2 are high and one is low. What will be the output?

3. IC Number of an AND gate is______

4. In an X-NOR Gate, if  input A is ‘0’ and input B is ‘1’, then the output will be

5. The gate that can be used to implement any Boolean expression is ________

6. Select the correct logical expression for a NAND Gate from below

7. How many flip-flops are there IC 7475?

8. Convert the binary 111011 into decimal

9. In Boolean algebra, the bar sign (—) indicates______ gate operation.

10. A ______ is a universal gate which is an AND Gate followed by NOT gate.

11. A latch is a _______ device in electronics circuits with 2 stable states.

12. The Karnaugh map method of minimization of switching function is very convenient and effective if the number of variable in the switching function is

13. Which two of the following are universal gates?

14. A NOR Gate is an OR gate followed by a

15. In a binary number system, the first digit (bit) from right to left is called______

16. Latch is a device with ___

17. The basic memory elements in digital circuits are made up of

18. The base of the octal number system is

19. A Logical gate whose output is low when the inputs are same and output is high when inputs are differ, is called_________

20. The function of a NOT Gate is to

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

22. How many entries in a truth table are necessary for an AND Gate with 4 inputs______

23. Which of the following expressions is in the sum-of-products (SOP) form?

24. AND gate is a logical gate that requires atleast______ input and produces only_______ outputs after performing the AND operation.

25. A three digit decimal number requires ________ for representation in the conventional BCD format.

26. Logic Gates in digital electronics are

27. The Hexadecimal for binary 1001110 is

28. The Hexadecimal of the decimal number 45.0 is ______

29. Decimal number 45 in binary is

30. The three inputs AND gate has______number of operations.

31. One of De Morgan’s theorems states that Simply stated, this means that logically there is no difference between:

32. Using the transformation method you can see that any POS realization of OR-AND with only _____

33. 1’s complement of the binary 101101 is

34. 2’s complement of the binary number 10110 is

35. A Karnaugh map (K-map) is an abstract form of ______ diagram organized as a matrix of squares.

36.

Identify the Gate for this Symbol and Expression above