Sequential circuit is a combination of a combinational circuit and a memory elements connected in feedback path. A D flip-flop has only one input. Thus, A J-K flip-flop can be implemented using D flip- flop connected such that. For which of the following flip-flops, the output is clearly defined for all combinations of two inputs? The Following Section consists Multiple Choice Questions on Sequential Logic Circuits. Maximum time taken for all flip-flops to stabilize is (75 ns x 8) + 50 ns = 650 ns. Which of the following gates give output 1, if and only if at least one input is 1? Questions from Previous year GATE question papers, UGC NET Previous year questions and practice sets. Take the Quiz and improve your overall Engineering. In a combinational circuit, for a change in the input, the output appears immediately. Sequential Logic Circuits - MCQs with answers Q1. A directory of Objective Type Questions covering all the Computer Science subjects. Discuss. The frequency of the input signal which can be used for proper operation of the counter is approximately equal to. Multiple choice Questions Digital Logic Design 1. Both A and R are true and R is the correct explanation of A, Both A and R are true but R is not the correct explanation of A. Truth table for J-K flip-flop is shown below. A. Choose the letter of the best answer in each questions. Sequential Circuits. Combinational logics quiz questions and answers PDF, code conversion quiz, full adders in combinational logics quiz, multi level nor circuits quiz, design procedure in combinational logics quiz, half adders quizzes for master's degree in computer science. Thus, statement-4 is no correct. the past output signals since the output signals are fed back to the input side. A digital system consists of _____ types of circuit. MCQ Topic Outline included in ECE Board Exam Syllabi . When J = 1 and K = 0, output (Q+) is always set upon the occurrence of the active clock transition. Digital logic design MCQs has 700 multiple choice questions. Practice these MCQ questions and answers for preparation of various competitive and entrance exams. • in a combinational circuit, for a change if the input, the output appears immediately except for the propagation delay througt circuit gates. Sequential Circuits. 6) Which is the correct sequential order of operational steps executed in the combinational logic circuits? 1. Which of the statement given above are correct? If A =0 and B = 1 then Y = 1. B. Combinational logic circuits. In a sequential circuits, the output signals are fed back to the input side. The output can be changed to ‘0’ with which one of the following conditions? The most popular example of the sequential circuit is the finite state machine. This mock test of Sequential Logic Circuits - 1 for GATE helps you for every GATE entrance exam. C.NOR. Extremely High. Hence, statement-5 is correct. Here you can access and discuss Multiple choice questions and answers for various compitative exams and interviews. Acceptance of n-different inputs C. Generation of 'm' different outputs as per the required level What J-K input condition will always set ‘Q+ upon the occurrence of the active clock transition ? This contains 10 Multiple Choice Questions for GATE Sequential Logic Circuits - 1 (mcq) to study with solutions a complete question bank. 1. The Flip Flop used here is a Positive edge triggered D Flip Flop, which means that only at the "rising edge of the clock" flip flop will capture the input provided at D and accordingly give the output at Q.And at other times of the clock the output doesn't change. Reason (R): A basic latch is made up of cross coupled inverters. Normal. If A =1 and B = 1 then Y = 0. Synchronous Sequential Logic Circuit is the one in which the output is … This type of circuits uses previous input, output, clock and a memory element. The solved questions answers in this Sequential Logic Circuits - 1 quiz give you a good mix of easy questions and tough questions. Get to the point GATE (Graduate Aptitude Test in Engineering) Electronics questions for your exams. By applying J = 1, K= 0 and using the clock, By applying J = 1, K = 1 and using the clock, By applying J = 0, K = 0 and using the clock. Block diagram Flip Flop. The logic circuits whose outputs at any instant of time depend only on the input signals present at that time are known as combinational circuits. • Combinational circuits are often faster than sequential circuits since the combinations circuits do not require memory whereas the sequential circuits need memory devices to perform their operations in sequence. Thus, option (d) is correct. You can find other Sequential Logic Circuits - 1 extra questions, Thus, statements 3 and 5 are only correct. Infinite. In this video, I have discussed important MCQs based on Sequential circuits which are very useful for your all upcoming examination like SSC IMD, NTRO, NIELIT, GATE, IES etc. We have also provided number of questions asked since 2007 and average weightage for each subject. Reason (R): In an asynchronous circuit, events can occur after one event is completed and there is no need to wait for a clock pulse. MCQs of Sequential Circuits. This contains 10 Multiple Choice Questions for GATE Sequential Logic Circuits - 1 (mcq) to study with solutions a complete question bank. Quiz Description:. For an XOR gate having A,B as inputs and Y as output mark the incorrect entry . (A) 2 (B) 3 (C) 4 (D) 5 Answer A. MCQ No - 2. Latches constructed with NOR and NAND gates tend to remain in the latched condition due to which configuration feature? MCQ No - 1. The memory elements are devices capable of storing binary information within them.The binary information stored in the memory elements at any given time defines the state of the sequential circuit. Assertion (A): In general, asynchronous circuits are considerably faster than synchronous circuits. 1. B. 5. a. Bush circuits b. Bushless circuits c. Locked circuits d. Unlocked circuits. MCQ in AC-DC circuits ; MCQ in Resistors ; MCQ in Inductors ; MCQ in Capacitors ; Continue Practice Exam Test Questions Part 9 of the Series. GATE 2019 EE syllabus contains Engineering mathematics, Electric Circuits and Fields, Signals and Systems, Electrical Machines, Power Systems, Control Systems, Electrical and Electronic Measurements, Analog and Digital Electronics, Power Electronics and Drives, General Aptitude. This set of Digital Electronics/Circuits Multiple Choice Questions & Answers (MCQs) focuses on “Registers”. High. 2 Able to design sequential circuits for machine operation 3 Able to design Clocked flip flops 4 Makes use of timing and triggering circuits with sequential logics UNIT -IV Sl No. Hence statement-2 is not correct. A directory of Objective Type Questions covering all the Computer Science subjects. A J-K flip-flop toggles when, The output of S-R flip-flop when S = 1, R = 0 is, An eight stage ripple counter uses a flip-flop with propagation delay of 75 nano-seconds. Very Low. This is the Multiple Choice Questions Part 7 of the Series in Computer Fundamentals as one of the Electronics Engineering topic. Which sequential circuits generate the feedback path due to the cross-coupled connection from output of one gate to the input of another gate? • In a sequential circuit, an output signal is e function of the present input signals and e sequence of the past input signals i.e. There are basically, two types of Sequential Circuit, one is synchronous and the other is Asynchronous Sequential circuit. Aeronautical Engineering - AE 2018 GATE Paper with solution, Unknown Parameter problems in Tables in Data Interpretation, Salient features of scientific calculator, Civil Engineering (CE) : Mock Test 1 For GATE, Number Systems, Boolean Algebra And Sequential Logic Circuits - MCQ Test. In this case, we have to operate motors sequentially. … A latch is memory device with the capability of storing one binary digit of information because the latch output will remain set/reset until the trigger pulse is given to change the state. Digital Circuits-Sequential Circuits: Questions 8-12 of 40. Sequential circuits are always faster than combination circuits. Hence statement - 1 is not correct. Description This mock test of Sequential Logic Circuits - 1 for GATE helps you for every GATE entrance exam. D. GATE EduRev is a knowledge-sharing community that depends on everyone being able to pitch in when they know something. The next states of asynchronous circuits are also called, Memory elements in asynchronous circuits are, One of the properties of asynchronous circuits is, Memory elements in synchronous circuits are, Asynchronous sequential logic circuits usually perform operations in, In fundamental mode the circuit is assumed to be in, The SR latch consists of two cross coupled, The circuit removing series of pulses is called, The fourth step of making transition table is, Asynchronous Sequential Logic Assertion (A): A latch is a memory device with the capability of storing one binary digit of information. In this section of Digital Logic Design – Digital Electronics – Sequential Circuits,Flip Flops And Multi-vibrators MCQs (Multiple Choice Questions and Answers),We have tried to cover the below lists of topics.All these MCQs will help you prepare for the various Competitive Exams and University Level Exams. among the following are the sequential circuits entering into the phenomenon of lock out condition? Thus, both assertion and reason are true but reason is not the correct explanation of assertion. a. Synchronous b. Asynchronous c. Both d. None of the above View Answer / Hide Answer This set of Digital Electronics/Circuits Multiple Choice Questions & Answers (MCQs) focuses on “Flip Flops – 1”. 4. B.AND. The questions asked in this NET practice paper are from various previous year papers. A. 401. >. Consider the following statements: long questions & short questions for GATE on EduRev as well by searching above. C. If A =1 and B = 0 then Y = 0. Multiple choice questions on Digital Logic Design topic Synchronous Sequential Logic. … 8 bit B. The above synchronous sequential circuit built using JK flip flop is initialized with Q 2 Q 1 Q 0 =000.THe state sequence for these circuit for next 3 clock cycle is (A) 001,010,011 (B) 111,110,101 C. Basic logic gates. Digital Logic Design – Digital Electronics MCQs Set-12 Contain the randomly compiled Digital Electronics MCQs from various reference books and Questions papers for those who is preparing for the various Competitive Exams,Interviews and University Level Exams. D. Complex logic gates. But sequential circuit has memory so output can vary based on input. When J = 1, K = 1 and the clock, next state will be complement of the present state. In an asynchronous circuit there is no problem of stability. students definitely take this Sequential Logic Circuits - 1 exercise for a better result in the exam. 4. In case of Short Circuit,_______Current will flow in the Circuit. Multiple choice questions and answers on Combinational Logics quiz answers PDF 1 to learn online digital logic design certificate course. Show … 4 bits C. 2 bits D. 1 bits 2. The memory elements are devices capable of storing binary information within them.The binary information stored in the memory elements at any given time defines the state of the sequential circuit. For J-K flip-flop, the output is clearly defined for all combinations of two inputs. This GATE exam includes questions from previous year GATE papers. In a DC Circuit, Inductive reactance would be_________ Equal As in AC Circuits. A 100-volt source is supplying a parallel RC circuit having a total impedance of 35.35 Ω. A. How many bits must each word have in one-to-four line de-multiplexer to be implemented using a memory? Explanation: In sequential circuits, the output signals are fed back to the input side. A register is defined as _____ a) The group of latches for storing one bit of information b) The group of latches for storing n-bit of information c) The … The pulse width of the strobe is 50 nano-seconds. By continuing, I agree that I am at least 13 years old and have read and agree to the. 2. A.OR. Flip flop is a sequential circuit which generally samples its inputs and changes its outputs only … Practice test for UGC NET Computer Science Paper. Attempt a small test to analyze your preparation level. • in an asynchronous circuit, events are allowed to occur without any synchronisation In such a case, the system become: unstable which results in difficulties. A directory of Objective Type Questions covering all the Computer Science subjects. There are total 3 motors to be controlled in a sequence. For S-R flip-flop output is not defined when S = R = 1. Frequency of operation must be less than Name : Hazard Digital Electronics mcq Quiz Subject : Digital Electronics Topic : Hazard Questions: 20 Time Allowed: 10 min Important for : Computer Science, Information Technology, Electronics and Communication Engineering students, GATE, PSUs, IES ( Indian Engineering Services) and other job interviews. Zero. Multiple choice questions on Digital Logic Design topic Asynchronous Sequential Logic. Sequential logic circuits. A flip flop is a _____ circuit. Practice these MCQ questions and answers for preparation of various competitive and entrance exams. Operation of combinational gates over the inputs B. Sequential circuit is a combination of a combinational circuit and a memory elements connected in feedback path. The output of a J-K flip-flop with asynchronous preset and clear inputs if ‘1 ’. • Statement-3 is correct which is the definitioi of a combinational circuit. In a J-K flip-flop, toggle means change the output to the opposite state. 3. 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