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Questions:

1. How many bits are in a nibble?
2. The parity of binary number 1011 is?
3. Which component is used in a MOD-10 counter?
4. Convert (1101100111.00111) into octal equivalent.
5. Convert (B2A) into decimal equivalent.
6. Find the value of r if (125) = (71).
7. A MOD-16 ripple counter has tp = 50ns, what is its maximum operating frequency?
8. Subtract (5423.43) from (236.43) using the 8s complement.
9. What does the following circuit represent?
10. The hexadecimal number 16 is equivalent to which binary number?
11. The decimal number (444.456) is equivalent to which octal number?
12. What is the universal logic gate?
13. What is an inverter?
14. Which combination of inputs results in a low output for an OR gate?
15. How many alphanumeric characters can be represented using ASCII 7-bit code?
16. What is the base of the hexadecimal number system?
17. If all the inputs are HIGH, which gate produces a HIGH output?
18. Which law is represented by the equation A(B + C) = AB + AC?
19. What is the complement of A'B + AB'?
20. What is the output of a full-adder for the inputs X, Y, and Z?
21. How many data select lines are required for selecting eight inputs in an 8:1 MUX?
22. Which combinational circuit is used for sending data from a single source to multiple destinations?
23. What are the two best methods for logic simplification?
24. Simplify the function F(A, B, C, D) using Karnaugh mapping.
25. If a 3-input NOR gate has eight input possibilities, how many result in a HIGH output?
26. In a Karnaugh map for a five-variable Boolean function, a certain group corresponds to a term having two literals. What should be the group size?
27. How many bits of information are stored by a flip-flop circuit?
28. A flip-flop works on the principle of which type of multivibrator?
29. What is a register?
30. What do counters count?
31. Convert the Gray code 1011 to binary.
32. Convert the Gray code 101100 to binary.
33. Perform the binary multiplication 110.1 10.1.
34. Subtract 11101 - 1100 using 2's complement.
35. Convert the POS expression Y = (A + B)(B + C)(A + C) into canonical form.
36. How many bits are in an ASCII character?
37. How many comparators are required in a 4-bit flash type ADC?
38. Find the next binary number in the sequence: 0, 1, 10, 11...
39. Which logic family has the minimum noise margin?
40. Which logic family provides wired logic?
41. Which logic family operates at the fastest speed?
42. How is a J-K flip-flop made to toggle?
43. What is the hold condition of a flip-flop?
44. How many flip-flops are required to design a Mod-6 counter?
45. What is the 2s complement of 100001?
46. What is the radix of the decimal number system?
47. What is the radix of the hexadecimal number system?
48. Which logic family has the minimum power dissipation?
49. Which type of flip-flop is used in a 4-bit shift register?
50. Which circuit requires a memory element?
51. What is the characteristic equation of an R-S flip-flop?
52. What is the characteristic equation of a J-K flip-flop?
53. Which register is used to convert temporal code into a special code?
54. What is excess-3 code?
55. What is the range of 2s complement numbers?
56. Which circuit can be used as a parallel-to-serial converter?
57. Which basic gate is formed by bubbling an OR gate?
58. For which combination of inputs does the output of the given circuit become 1?
59. How many NAND gates are required to implement a full adder?
60. How many NAND gates are required to implement the Boolean function Y(A,B,C) = m(0,1,3,5) using NAND-NAND logic?
61. What is the 1s complement of (10111.00110)?
62. How many basic counting cycle lengths exist in a Johnson counter?
63. How many half-adders are required to implement the function X Y Z?
64. A decoder provides minterms for how many input variables?
65. Which of the following is not a basic logic gate?
66. In parallel-in serial-out (PISO) shift registers, what is the output format?
67. Which logic family has the fastest speed?
68. Which of the following is used to toggle a J-K flip-flop?
69. Which register converts temporary codes into special codes?
70. Which Boolean law states A + 1 = 1?
71. For an n-variable, how many K-map cells are required?
72. Simplify the function F(A,B,C,D) using K-map.