STLD

1. The device commonly used for making digital circuits is
2. Convert binary number 111101100 to octal equivalent.
3. Convert binary number 10111011 to its equivalent gray code.
4. Find 2’s complement of  1001
5. What are the universal gates? Why they are called so?
6. For the Boolean expression A+AB=?
7. Equivalent binary number for hexa decimal number F8B.
8. For the Boolean expression A.A=?
9. The outputs of a 2- input gate are 0 if and only if its inputs are equal. It is true for which gate?
10. The number of  states in a decade counter is
11. What is multiplexer?
12. Reduce the Boolean expression
13. What is DeMorgon’s theorem?
14. Another name for D-flip-flop.
15. Give the example for edge sensitive device?
16. Give the example for level sensitive device?
17. If S=1, R=1 then what is the state of SR-Latch?
18. Give one example for Non-weighted code.
19. What are the requirements to construct ASM chart?
20. What is the equivalent BCD number for given binary number 10001
21.  In Boolean algebra 1+A=?
22. What is the condition to get high output in AND Gate?
23. Number of flip-flops required for storing n-bit information.
24. What is state diagram?
25. If a ring counter consists of 5 flip-flops. Then it has how many states.
26. In Boolean algebra =
27. The output of a gate is LOW if and only if all its inputs are LOW. It is true for which gate?
28. The output of a gate is HIGH if and only if all its inputs are HIGH. It is true for which gate?
29. The output of a gate is LOW if and only if all its inputs are HIGH. It is true for which gate?
30. The gate is enable. When its enable is at logic 0. the gate is
31. The gate is disable. When its disable is at logic 0. the gate is
32. If the strobe signal required for a gate is 1, The gate is
33. The minimum number of pins required in an IC with two 4-input gate is
34. The most suitable gates for comparing two bits
35. Which gate operation is commutative but not associative 
36. Which gate operation is not associative
37. Number of rows in the truth table of 4-input gate is
38. What is the equivalent realization for NOR-NOR realization
39. What is the equivalent realization for NAND-NAND realization
40. Which gate is used for checking the parity of a digital word?
41. What is the 2’s complement representation of  -8
42. Which code is used for labeling the cells of K-map
43. The number of cells in a 6-variable K-map is
44. In Boolean algebra  is
45. Which gates are used to design combinational circuits?
46. A ROM has 16-bit address bus. The number of locations in this memory.
47. Master-slave flip-flop is used in a JK-flip-flop to eliminate………………
48. What is slave flip-flop in master-slave JK flip-flop?
49. What is the difference between Latch and flip-flop?
50. full-adder circuit is a combination of two…………………