Digital Electronics Quiz Vol- 2

This is the Digital electronics quiz vol- 2 which is more advanced than Digital Electronics Quiz-1. This is a bit more advanced version of it. Enjoy the Quiz game there will be 50 questions.

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1. Why is the extent of propagation delay in synchronous counter much lesser than that of the asynchronous counter?



2. The process to activate a Flip-Flop is______


3. In an S-R Flip-Flop, Q output is set to logic 1 by applying logic 0 to the _____.


4. In serial shifting method, data shifting occurs ______


5. On a master-slave flip-flop, when is the master enabled?


6. Total number of inputs in a half adder is _____


7.  The D flip-flop has _______ input.


8. In an UP-counter, each flip-flop is triggered by _______


9. Define trigger pulse?


10. The inputs in the PLD is given through _______


11. Which sequential circuits are used for counting pulses?


12. If A, B, and C are the inputs of a full adder then the sum is given by ______


13. In D flip-flop, if clock input is HIGH & D=1, then output is ______[quads id=1]




14. In SR flip-flop, ‘S’ stands for:


15. Three decade counter would have _______


16. JK flip flop has _____


17. In D flip-flop, if clock input is LOW, the D input ______


18. Which type of device FPGA are?


19. The output of Up counters goes on increasing due to _____


20. _____ input in an S-R Flip-Flop resets the flip-flop to its original value with an output Q, that will be at Logic ‘0’ or ‘1’ depending upon the set/reset condition.


21. How many types of registers available?


22. A counter circuit is usually made up of _____


23. A feature that distinguishes the J-K flip-flop from the D flip-flop is the


24. The SR flip-flop can be considered as a ___ memory


25. _____ input in an S-R Flip-Flop resets the flip-flop to its original value with an output Q, that will be at Logic ‘0’ or ‘1’ depending upon the set/reset condition.


26. A shift register is defined as ______


27. Schmitt trigger can be used as


28. When the J and K inputs are low, the state of the outputs Q and Q’ are


29. What amongst the following is faster in operation?


30. A modulus-10 counter must have _____


31. If the number of states in a counter are 2n, then the value of ‘n’ is ______


32. D flip-flop can be made from a J-K flip flop by making


33. Set pin going high in SR flip flop causes the output to go to


34. lf,  A and B are the inputs of a half adder, the carry is given by


35. In FPGA, vertical and horizontal directions are separated by __________


36. How is a J-K flip-flop made to toggle?


37. An S-R Flip-Flop has 2 inputs marked ______& ______ and two outputs __&__.


38. A register that is used to store binary information is called a ________.


39. The main difference between a register and a counter is ______


40. In DOWN-counter, each flip-flop is triggered by _______


41. Which flip flops serve to be the fundamental building blocks of counters?


42. A register can be defined as ______


43. Basic S-R flip-flop can be constructed by cross-coupling of which basic logic gates?


44. A D flip-flop utilizing a PGT clock is in the CLEAR state. Which of the following input actions will cause it to change states?


45. How many AND, OR and EXOR gates are required for the configuration of full adder?


46. A PLA is similar to a ROM in concept except that ______


47. UP-DOWN counter is a combination of _______


48. In which operation carry is obtained?


49. The register is a type of ________


50. Why do the D flip-flops are said to be as Data Flip-flops’?


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