Digital Circuits MCQ (Multiple Choice Questions)

Here are 1000 MCQs on Digital Circuits (Chapterwise).

1. What is Digital Electronics?
a) Field of electronics involving the study of digital signal
b) Engineering of devices that digital signal
c) Engineering of devices that produce digital signal
d) All pf the mentioned
View Answer

Answer: d
Explanation: Digital electronics is a branch of electronics concerned with the study of digital signals as well as the design of systems that use or generate them. For electronics, gadgets, and equipment, “boolean logic” and “discrete signal electronics” are used.

2. Which of the following is correct for Digital Circuits?
a) Less susceptible to noise or degradation in quality
b) Use transistors to create logic gates to perform Boolean logic
c) Easier to perform error detection and correction with digital signal
d) All of the mentioned
View Answer

Answer: d
Explanation: A digital circuit is a circuit that has a signal that must fall into one of two discrete levels. Each level is read as one of two states (on/off, 0/1, true/false, for example). To perform Boolean logic, digital circuits use transistors to generate logic gates.

3. What is a Circuit?
a) Open-loop through which electrons can pass
b) Closed-loop through which electrons can pass
c) Closed-loop through which Neutrons can pass
d) None of the mentioned
View Answer

Answer: b
Explanation: A circuit is a closed-loop through which electrons can pass. Electrical energy is provided in the circuit by a source of electricity, such as a battery.

4. Which of the following is an example of a digital Electronic?
a) Computers
b) Information appliances
c) Digital cameras
d) All of the mentioned
View Answer

Answer: d
Explanation: Computers, information appliances, digital cameras, digital televisions, flash memory, key USB memory, mobile phones, hard discs, and computer memory devices are examples of digital electronics. After analog signals have been transformed to digital form, digital signal processing is applied to them.

5. Which of the following is a type of digital logic circuit?
a) Combinational logic circuits
b) Sequential logic circuits
c) Both Combinational & Sequential logic circuits
d) None of the mentioned
View Answer

Answer: c
Explanation: There are two main types of digital logic circuits in digital electronics. They are:
a) Combinational logic circuits
b) Sequential logic circuits
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6. Which of the following options comes under the non – saturated logic family in Digital Electronics?
a) Emitter – coupled Logic
b) High-Threshold Logic
c) Integrated – injection Logic
d) Diode – Transistor Logic
View Answer

Answer: a
Explanation: Bipolar IC’s can be classified as saturated and non – saturated logic families. ECL (Emitter – coupled Logic) and Schottky TTL are said to come under the non – saturated logic family.

7. What is a switching function that has more than one output called in Digital Electronics?
a) Multi-gate function
b) Multi-output function
c) Multiple-gate function
d) Multiple-output function
View Answer

Answer: b
Explanation: multi-output function is a switching function that will have more than one output. A multiple output gate network will have the digital logic circuit corresponding to the multi-output function.

8. Which characteristic of IC in Digital Circuits represents a function of the switching time of a particular transistor?
a) Fan – out
b) Fan – in
c) Power dissipation
d) Propagation delay
View Answer

Answer: d
Explanation: Propagation delay represents a function of the switching time of a particular transistor or MOSFET. The propagation delay helps in determining the speed of logic circuits.

9. When can one logic gate drive many other logic gates in Digital Electronics?
a) When its output impedance is low and the input impedance is low
b) When its output impedance is high and the input impedance is high
c) When its output impedance is high and the input impedance is low
d) When its output impedance is low and the input impedance is high
View Answer

Answer: d
Explanation: When the output impedance of a logic gate is low and its input impedance is high, then one logic gate can drive many other logic gates. High impedance in the output will resist the driving of many logic gates.

10. Which of the following digital logic circuits can be used to add more than 1 – bit simultaneously?
a) Full – adder
b) Ripple – carry adder
c) Half – adder
d) Serial adder
View Answer

Answer: b
Explanation: A Ripple – carry adder is a parallel binary adder in which the addition of more than 1 – bit data can be done simultaneously. The inputs to a parallel circuit can be sent and processed at once unlike series circuits in which inputs are sent one by one.

11. Which gates in Digital Circuits are required to convert a NOR-based SR latch to an SR flip-flop?
a) Two 2 input AND gates
b) Two 3 input AND gates
c) Two 2 input OR gates
d) Two 3 input OR gates
View Answer

Answer: a
Explanation: Two 2 input AND gates are placed with a NOR – based S – R latch to convert it to an S – R flip – flop. One AND gate is given R in one input and clock in the other. Similarly the second AND gate is given S in one input and clock in the other.

12. When does a negative level triggered flip-flop in Digital Electronics changes its state?
a) When the clock is negative
b) When the clock is positive
c) When the inputs are all zero
d) When the inputs are all one
View Answer

Answer: a
Explanation: A negative level triggered flip – flop has a NOT gate present between clock input and the input of AND gate. Thus, the negative level triggered flip – flop change its state when the clock is negative.

13. Which of the following options represent the synchronous control inputs in an S – R flip flop?
a) S
b) R
c) Clock
d) Both S and R
View Answer

Answer: d
Explanation: The input for which the flip flop changes its state when synchronized with the clock is called the synchronous control inputs. For the S – R flip flop, both S and R are synchronous control inputs.

14. What must be used along with synchronous control inputs to trigger a change in the flip flop?
a) 0
b) 1
c) Clock
d) Previous output
View Answer

Answer: c
Explanation: A clock must be used along with synchronous control inputs to trigger a change in the flip flop. These flip – flops may be edge – triggered or level – triggered. A change should occur only when the clock changes from 0 to 1 or vice versa.
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15. Which of the following majorly determines the number of emitters in a TTL digital circuit?
a) Fan – in
b) Fan – out
c) Propagation delay
d) Noise immunity
View Answer

Answer: a
Explanation: The TTL circuit uses multi – emitter transistors with many emitters in the input. Thus, the number of emitters is determined by the fan – in. Fan – in determines the number of inputs the particular gate can handle.

16. What will be the output from a D flip – flop if the clock is low and D = 0?
a) 0
b) 1
c) No change
d) Toggle between 0 and 1
View Answer

Answer: c
Explanation: When the clock is low, the input given to D will have no effect. This is because the set and reset pins of the NAND gates are kept high. When HIGH value is given to NAND gates the output result will be zero.

17. What are the basic gates in MOS logic family?
a) NAND and NOR
b) AND and OR
c) NAND and OR
d) AND and NOR
View Answer

Answer: a
Explanation: The MOS logic family uses the MOSFET devices to perform its operation. NAND and NOR are the basic gates that are the building blocks of most digital circuits.

18. How must the output of a gate in a TTL digital circuit act when it is HIGH?
a) Acts as a voltage source
b) Acts as a current sink
c) Acts as a current source
d) Acts as a voltage sink
View Answer

Answer: c
Explanation: If the gate output is high in a TTL circuit, the current must be given to the input of the gate being driven. Thus, the output must act as a current source. In a normal TTL circuit, about 40μA of current is drawn from the input from a output that is HIGH.

19. What is the minimum distance required for single error detection according to Hamming’s analysis in Digital Electronics?
a) 1
b) 2
c) 3
d) 4
View Answer

Answer: b
Explanation: According to Hamming’s analysis, a minimum distance of 2 is required for single error detection. This Hamming distance represents the number of bits that are changed from one code word to the other.
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20. Which of these error-detecting codes enables to find double errors in Digital Electronic devices?
a) Parity method
b) Check sum method
c) Bit generation method
d) Odd-Even method
View Answer

Answer: b
Explanation: Check sum enables to find double errors and also find the erroneous bits. The parity method can help in finding only single errors within a word as a double error will not change the parity bits.

21. What will be the output from a D flip-flop if D = 1 and the clock is low?
a) No change
b) Toggle between 0 and 1
c) 0
d) 1
View Answer

Answer: a
Explanation: When the clock is low, the input given to D will have no effect. The set and reset pins of the NAND gates are high. When a NAND gate is given 1 as an input to any of the pins, the output will always be 0.

22. What characteristic will a TTL digital circuit possess due to its multi-emitter transistor?
a) Low capacitance
b) High capacitance
c) Low inductance
d) High inductance
View Answer

Answer: a
Explanation: TTL circuit uses multi – emitter transistors which have a smaller area. The capacitance can be represented in terms of area and distance between the plates using the expressions C = Aε0/d. As “C” is directly proportional to “A”, a smaller area leads to a lower capacitance.

23. What input should be given to “S” when SR flip – flop is converted to JK flip – flop?
a) K.Q
b) K.Q
c) J.Q
d) J.Q
View Answer

Answer: d
Explanation: To convert SR flip – flop to JK flip – flop the “S” input in the SR flip – flop is given input “J” and “Q” through an AND gate. This is obtained by combining the truth table of SR flip – flop and JK flip – flop.

24. What value is to be considered for a “don’t care condition”?
a) 0
b) 1
c) Either 0 or 1
d) Any number except 0 and 1
View Answer

Answer: c
Explanation: A don’t care condition can take 0 or 1 according to the requirement. SOP expressions may consider it to be 1 to increase the number of 1s and POS expressions may consider it to be 0 to increase the number of 0s.

25. What is the group of 1s in 4 cells of a K – map called?
a) Pair
b) Quad
c) Octet
d) Octave
View Answer

Answer: b
Explanation: A group of 1s in 4 cells of a K – map is called Quad. A group of 1s in 2 cells of a K – map is called Pair and a group of 1s in 8 cells of a K – map is called Octet.

26. What will be the frequency of the output from a JK flip – flop, when J = 1, K = 1, and a clock with pulse waveform is given?
a) Half the frequency of clock input
b) Equal to the frequency of clock input
c) Twice the frequency of clock input
d) Independent of the frequency of clock input
View Answer

Answer: a
Explanation: A single flip flop is a divide – by – two device. The frequency of the output from a JK flip – flop, when J = 1, K = 1, and a clock with pulse waveform is given is half the frequency of clock input.

27. What gate is placed between clock input and the input of AND gate to convert a positive level triggered flip – flop to a negative level triggered flip – flop?
a) NOR gate
b) NOT gate
c) Buffer
d) NAND gate
View Answer

Answer: a
Explanation: The negative level triggered the flip – flop in Digital Electronics changes its state when the clock is negative. Thus, a negative level triggered flip – flop has a NOT gate present between clock input and the input of AND gate.

28. In Digital Circuits, which of the following options represent the synchronous control inputs in a T flip flop?
a) T
b) 0
c) Clock
d) 1
View Answer

Answer: T
Explanation: The input at which the flip flop changes its state when synchronized with the clock is called the synchronous control inputs. For T flip flop T is the synchronous control input.

29. What will a TTL digital circuit possess due to the presence of a multi – emitter transistor?
a) Smaller resistance
b) Larger area
c) Smaller area
d) Larger resistance
View Answer

Answer: c
Explanation: TTL circuit uses multi – emitter transistors. These transistors have a smaller area. As Capacitance is directly proportional to area, a smaller area leads to a lower capacitance.

30. How must the output of a gate act when it is LOW in a TTL circuit?
a) Acts as a voltage source
b) Acts as a current sink
c) Acts as a current source
d) Acts as a voltage sink
View Answer

Answer: b
Explanation: If the gate output is Low in a TTL digital circuit, the gate must be capable of sinking current drawn from the input of gates. Thus, the output must act as a current sink.

31. Which of the following gives the correct number of multiplexers required to build a 32 x 1 multiplexer?
a) Two 16 x 1 mux
b) Three 8 x 1 mux
c) Two 8 x 1 mux
d) Three 16 x 1 mux
View Answer

Answer: a
Explanation: Two 16 x 1 mux will enable to give 32 inputs. The final output can be obtained after passing the output from each 16 x 1 mux through an OR gate. The select lines will help in selecting a particular output.

32. What must be the input given to “R” when SR flip – flop is converted to JK flip – flop?
a) K.Q
b) K.Q
c) J.Q
d) J.Q
View Answer

Answer: b
Explanation: In Digital Electronics, to convert SR flip – flop to JK flip – flop the “R” input in the SR flip – flop is given input “K” and “Q” through an AND gate. The truth table of SR flip – flop and JK flip – flop are combined to get the expression.

33. What minimum distance is required for a single error correction according to Hamming’s analysis in Digital Electronics?
a) 1
b) 2
c) 3
d) 4
View Answer

Answer: c
Explanation: According to Hamming’s analysis, a minimum distance of 3 is required for a single error correction. Hamming distance represents the number of bits that change from one code word to the other.

34. How many errors can the Digital Electronics parity method can find in a single word?
a) Single error
b) Double error
c) Triple error
d) Multiple errors
View Answer

Answer: a
Explanation: The parity method can help in finding only single errors within a word. The double errors cannot be found as the parity of the bits does not change. If double errors need to be identified, the check – sum method can be used.

35. What is the group of 1s present in 8 cells of a K – map called?
a) Pair
b) Quad
c) Octet
d) Octave
View Answer

Answer: c
Explanation: In a K – map if a group of 1s in eight cells are present, it makes an Octet. A group of 1s in two cells is called a Pair and a group of 1s in four cells is a Quad.

36. Which of these flip – flops cannot be used to construct a serial shift register?
a) D – flip flop
b) SR flip – flop
c) T flip – flop
d) JK flip – flop
View Answer

Answer: c
Explanation: SR, D, and JK flip flops can be used to construct a serial shift register. A T flip – flop gives the output 0 when input 1 is given and gives output 1 when input 0 is given. Thus, it cannot be used as a serial shift register.

37. Which of these options represent the other name of Inter – Integrated logic?
a) Merged Transistor Logic
b) Emitter – Coupled Logic
c) High threshold logic
d) Resistor – Transistor logic
View Answer

Answer: a
Explanation: Inter – Integrated circuits can be represented by IIC or I2C is also called the Merged Transistor Logic. They use n – p – n or p – n – p transistors to form IC’s.

38. Which of the following options is a Current – Mode logic used in Digital Circuits?
a) TTL
b) RTL
c) ECL
d) IIC
View Answer

Answer: c
Explanation: Emitter coupled logic or ECL is a Current – Mode logic. While operating in active mode, they help in eliminating the turn – off delay of saturated transistors. ECL family has a higher switching speed and dissipates more power.

39. How many AND gates are required to construct a 4 – bit parallel multiplier if four 4 – bit parallel binary adders are given?
a) Four 2 – input AND gates
b) Eight 2 – input AND gates
c) Sixteen 2 – input AND gates
d) Two 2 – input AND gates
View Answer

Answer: c
Explanation: Four 4 – bit parallel binary adders along with 16 number of 2 – input AND gates will be required to construct a 4 – bit parallel multiplier. The AND gate helps in getting the partial products while the parallel – adder are used to add the partial products.

40. How many cycles of addition and shifting in a 4 – bit multiplier are required to perform multiplication using the shift method?
a) 1
b) 2
c) 4
d) 8
View Answer

Answer: c
Explanation: In Digital Electronics, 4 cycles of addition and shifting in a 4 – bit multiplier are required to perform multiplication using the shift method. The multiplicand is copied as a partial product when multiplier bit is 1 and multiplicand is 0 when multiplier bit is 0.

41. How many 4 – bit parallel binary adders will be required to construct a 4 – bit parallel multiplier?
a) 1
b) 2
c) 4
d) 8
View Answer

Answer: c
Explanation: Four 4 – bit parallel binary adders along with 16 number of 2 – input AND gates will be required to construct a 4 – bit parallel multiplier. The parallel adders are used to add the partial products which are calculated using the AND gates.

42. What kind of operation occurs in a J – K flip flop when both inputs J and K are equal to 1?
a) Preset operation
b) Reset operation
c) Clear operation
d) Toggle operation
View Answer

Answer: d
Explanation: Toggle operation in Digital Circuits like J – K flip – flop occurs when J = 1 and K = 1. The output toggles between 0 and 1 continuously. This oscillation between 0 and 1 leads to a race – around condition which can be solved using a Master – slave flip flop.

43. Which of the following codes is a sequential code?
a) 8421 code
b) 2421 code
c) 5421 code
d) 2441 code
View Answer

Answer: a
Explanation: A sequential code is a code where each succeeding code is one binary number more than the preceding code. Thus, 8421 is a sequential code. Sequential codes are useful in manipulating mathematical data.

44. Which of these code pairs correctly represent Digital Electronics reflective codes?
a) 2421 and 5211
b) 2421 and 8421
c) 5211 and 8421
d) 5421 and 2421
View Answer

Answer: a
Explanation: A reflexive code is the one where the code for 9 is the complement of code for 0, code for 8 is the complement of code for 1, and so on. Thus, 2421 and 5211 are reflexive codes.

45. Which of the following options correctly represent the characteristic of Excess – 3 code?
a) It is a reflexive as well as a sequential code
b) It is a reflexive code but not a sequential code
c) It is a sequential code but not a reflexive code
d) It is neither a reflexive code nor a sequential code
View Answer

Answer: a
Explanation: A reflexive code is a code where the code for 9 is the complement of code for 0 and so on. A sequential code is a code where each succeeding code is one binary number more than the preceding code. Excess – 3 code satisfies both these properties.

46. The result “X + XY = X” follows which of these laws?
a) Consensus law
b) Distributive law
c) Duality law
d) Absorption law
View Answer

Answer: d
Explanation: The results “X + XY = X” and “X(X + Y) = X” follows the absorption law. The expression given can be written in the form X + XY = X(1 + Y). Any value – added with 1 will give 1 itself. Therefore 1 + Y = 1 and X + XY = X.

47. Which of the following options correctly represents the consensus law of Digital Circuits?
a) AB + AC + BC = AB + AC
b) AB + AC + BC = AB + AC
c) AB + AC + BC = AB + AC
d) AB + AC + BC = AB + AC
View Answer

Answer: a
Explanation: The consensus law of Digital Electronics can be represented by the expression
AB + AC + BC = AB + AC

48. Which of the following points is not correct regarding an Ex – NOR gate in Digital Electronics?
a) It is a one – bit comparator
b) It is a buffer
c) It is a one – bit inverter
d) It is a universal gate
View Answer

Answer: a
Explanation: Ex – NOR gate is a one – bit comparator as the output for the gate is 1 if similar inputs are given to the gate and output is 0 if different inputs are given to the gate.

49. Which gate is called the anti – coincidence and coincidence gate respectively?
a) XNOR and XOR
b) AND and OR
c) OR and AND
d) XOR and XNOR
View Answer

Answer: d
Explanation: XNOR gate is called coincidence gate and gives 1 if similar inputs are given to the gate and output is 0 if different inputs are given to the gate. XOR gate is called anti – coincidence gate and gives 0 if similar inputs are given to the gate and output is 1 if different inputs are given to the gate.

50. What frequency division of the pulsed clock signal can be obtained by connecting 4 flip – flops in cascade?
a) 2
b) 4
c) 8
d) 16
View Answer

Answer: d
Explanation: In Digital Circuits, a frequency division of 2n of the pulsed clock signal can be obtained by connecting n flip – flops in cascade. Thus, for 4 flip – flops clock frequency can be divided by 16.

51. Which of the following options represent the correct reduction of XYZ + XYZ ?
a) 0
b) YZ
c) X + X
b) 2YZ
View Answer

Answer: b
Explanation: Using Boolean identities of Digital Electronics the expression XYZ + XYZ can be reduced. According to Complementarity identity X + X = 1. Thus, YZ + XYZ = (X + X)YZ = YZ.

52. A priority encoder has four inputs I0, I1, I2, and I3 where I3 has the highest priority and I0 has the least priority. If I2 = 1, what will be the output?
a) 00
b) 01
c) 10
d) 11
View Answer

Answer: c
Explanation: In digital circuits, if an input has 1 then the other inputs with lower priority can be considered with the “don’t care” condition. I2 = 1, thus, I3 = 0, I1 = x and I0 = x. The output will be 10.

53. Which of the following options are correct for a 4×1 multiplexer?
a) It has four 3 – input AND gates
b) It has four 2 – input AND gates
c) It has one 3 – input AND gate
d) It has one 3 – input AND gate
View Answer

Answer: a
Explanation: A 4 x 1 multiplexer has 2 select lines, 4 input lines, and 1 output line. AND gates are required to pass the inputs. Thus 4 AND gates will be used for each input. 3 – input AND gate is used, where 2 inputs come from each of the select lines and 1 input for the data.

54. What determines the output from the combinational logic circuit in Digital Electronics?
a) Input signals from the past condition
b) Input signals at the present moment
c) Input signals from both past and present
d) Input signals expected in future
View Answer

Answer: b
Explanation: The output in a combinational circuit depends on the mixture of input signals present at that moment. It is not determined by the past conditions. The output in a synchronous circuit depends on the mixture of input signals present at that moment and also the past conditions.

55. Which of these pins will allow to activate and deactivate a multiplexer?
a) Enable pin
b) Selection pin
c) Logic pin
d) Preset pin
View Answer

Answer: a
Explanation: An enable pin allows to activate and deactivate the multiplexer. When enable pin is 0, the output is obtained while when enable pin is 0, the multiplexer is disabled.


Chapterwise Multiple Choice Questions on Digital Circuits

Digital Electronics MCQ - Multiple Choice Questions and Answers

Our 1000+ MCQs focus on all topics of the Digital Circuits subject, covering 100+ topics. This will help you to prepare for exams, contests, online tests, quizzes, viva-voce, interviews, and certifications. You can practice these MCQs chapter by chapter starting from the 1st chapter or you can jump to any chapter of your choice.
  1. Number System and Codes
  2. Boolean Algebra and Minimization Techniques and Logic Gates
  3. Logic Families
  4. Arithmetic Circuits
  5. Combinational Circuits
  6. Flip-Flops
  7. Counters
  8. Registers
  9. Memory Devices

1. Digital Electronics MCQ on Number System and Codes

The section contains multiple choice questions and answers on number systems, complements of 1, 2, 9 and 10, BCD and arithmetic operations.

  • Number System – 1
  • Number System – 2
  • Arithmetic Operation
  • 1’s, 2’s, 9’s & 10’s Complements – 1
  • 1’s, 2’s, 9’s & 10’s Complements – 2
  • Binary Coded Decimal(BCD)
  • 2. Digital Circuits MCQ on Boolean Algebra and Minimization Techniques and Logic Gates

    The section contains questions and answers on logic gates, digital integrated circuits, boolean operations, sum of products and products of sum, karnaugh maps and quine-mccluskey method.

  • Boolean Logic Operations
  • Sum of Products and Products of Sum
  • Karnaugh Map
  • Quine-McCluskey or Tabular Method of Minimization of Logic Functions
  • Logic Gates and Networks – 1
  • Logic Gates and Networks – 2
  • Digital Integrated Circuits – 1
  • Digital Integrated Circuits – 2
  • Digital Integrated Circuits – 3
  • 3. Digital Electronics Multiple Choice Question on Logic Families

    The section contains MCQs on RTL, DTL, TTL, ECL, IIL and characteristics of MOS, CMOS, BiCMOS and interfacing.

  • Register-Transistor Logic(RTL)
  • Diode-Transistor Logic(DTL)
  • Transistor Transistor Logic(TTL)
  • Emitter-Coupled Logic(ECL)
  • Integrated-Injection Logic(IIL)
  • MOS Digital Integrated Circuits
  • Characteristics of CMOS
  • BiCMOS Logic Circuits
  • Compatibility or Interfacing
  • 4. Digital Circuits Multiple Choice Question on Arithmetic Circuits

    The section contains multiple choice questions and answers on half adder, full adder, half subtractor, full subtractor, 4-bit parallel adders and subtracters, fast adder, serial adder, BCD adder, basics of arithmetic operation and simplification of k-maps.

  • Introduction of Arithmetic Operation
  • Half Adder & Full Adder
  • Half & Full Subtractor
  • Procedure For The Design of Combinational Circuits
  • K-Map Simplification
  • Controlled Inverter
  • 4-Bit Parallel Adder/Subtractor – 1
  • 4-Bit Parallel Adder/Subtractor – 2
  • Fast Adder & Serial Adder – 1
  • Fast Adder & Serial Adder – 2
  • BCD Adder
  • 5. Digital Electronics MCQ on Combinational Circuits

    The section contains questions and answers on multiplexers, demultiplexers, LCD, encoders, parity generators and checkers, combinational circuits, code converters and magnitude comparators.

  • Combinational Circuits
  • Multiplexers(Data Selectors) – 1
  • Multiplexers(Data Selectors) – 2
  • Demultiplexers(Data Distributors) – 1
  • Demultiplexers(Data Distributors) – 2
  • Liquid Crystal Displays
  • Encoders
  • Parity Generators/Checkers – 1
  • Parity Generators/Checkers – 2
  • Code Converters
  • Magnitude Comparator
  • 6. Digital Circuits MCQ on Flip-Flops

    The section contains MCQs on latches, flip-flops, master slave and D flip flops and trigerring of flip flops.

  • Latches
  • Flip Flops – 1
  • Flip Flops – 2
  • Flip Flops – 3
  • D Flip Flop
  • Triggering of Flip Flops
  • Master-Slave Flip-Flops
  • Realisation of One Flip-Flop using Other Flip-Flops
  • 7. Digital Electronics Multiple Choice Question on Counters

    The section contains multiple choice questions and answers on up down counters, asynchronous and asynchronous down counter, counter implementation and propagation delay in ripple counter.

  • Counters
  • Asynchronous Counter
  • Counter ICs
  • Asynchronous Down Counter
  • Propagation Delay in Ripple Counter
  • Counter Implementation and Applications
  • Up Down Counter
  • 8. Digital Circuits Multiple Choice Question on Registers

    The section contains questions and answers on basics of registers, shist registers, universal shift registers, shift register counter and ring counters.

  • Registers
  • Shift Registers
  • Universal Shift Registers
  • Shift Register Counters
  • Ring Counter
  • If you would like to learn "Digital Circuits" thoroughly, you should attempt to work on the complete set of 1000+ MCQs - multiple choice questions and answers mentioned above. It will immensely help anyone trying to crack an exam or an interview.

    Wish you the best in your endeavor to learn and master Digital Circuits!

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