• Home
  • Articles
  • Basics
  • Components
  • Projects
  • Communications
  • MCQ

WatElectronics.com

You are here: Home / MCQ / Asynchronous Counter Question & Answers

Asynchronous Counter Question & Answers

May 3, 2022 By WatElectronics

This article lists 75 Asynchronous Counter MCQs for engineering students. All the Asynchronous Counter Questions & Answers given below include a hint and a link wherever possible to the relevant topic. This is helpful for users who are preparing for their exams, interviews, or professionals who would like to brush up on their fundamentals on Asynchronous Counter.

Counters are defined as a number of events or processes that occurred in presence of clock timings. There exist two types of basic counters asynchronous counters and synchronous counters. Counters whose output is unoccupied by applying different clock signals are called Asynchronous counters.

The number of logic gates required to design it is very less. The alternative name for asynchronous counters is Ripple counters. Flip flops used in asynchronous/ripple-counters depend upon a number of states of the counter and the output of its states is called Modulus or MOD of the counter.

The highest number of states used by the counter is 2n, where n is represented by the number of flip flops used in the counter. Example: If we use 2 Flip flops, then the number of states at the output of the counter is 4. i.e, 2*2=4.It is also called Modulus-4 or MOD-4 Counter.

There are many types of Asynchronous/ripple counters like Up counter, Down counter, Ripple Up/Down Counter, and Ripple BCD counter.

Up counter: Ripple counter starts the count from 0 to maximum range n. n depends upon the number of FFs used. Ripple Up counter can be built using D and T flip flops. Design differs based on the type of Flip flops used in the circuit. Toggling will be the same in both D and T flip-flops.

Down Counter: Ripple Down counter starts the count from the maximum possible range to 0 and resets back from the maximum count. The design is the same as the Up counter the only difference is toggling in D and T flip flops differs. The output of each flip flop will be given as input to succeeding flip flops. So that it activates the counter to count from backward.

Up/Down Counter: This counter can do both Up and Down counting based on the type of mode select switch. When the mode switch is high, then the counter will count up whereas when the mode switch is low, then the counter will count down. Here we use 2*1 MUX to select two clock signals.

Asynchronous BCD Counter: The Asynchronous BCD Counter is the same as the Asynchronous Up counter, when the count reaches the decade it resets to zero flip flops.

1). Counters defines the combination of ________ data.
HintBinary format.
2). How many types of counters exist?
HintPaired.
3). Other name for Asynchronous counters is _______counters.
HintWavelet parameter.
4). Asynchronous counters are_______ to design.
HintQuick changes can be done to the design.
5). Number of logic gates required to design asynchronous counters are?
HintLow.
6). Flip flops in Asynchronous/Ripple counters are supplied with ______ clock signals.
HintIncompatible.
7). Flip flops depends on number of ______?
HintPositions/Conditions.
8). The output states of ripple counter are called______ counter.
HintNon simultaneous.
9). Modulus can also be written as ______ counter.
HintMOD=modulus.
10). Maximum number of states available in counters are?
HintMultiples.
11). Number of flip flops used in the counter are represented by___?
HintMultiple.
12) How many flip flops produce the output 4 at the counter.
HintEven number.
13). Modulus-4 counter is represented as ______.
HintModulus = MOD
14). Which of the following are the types of Asynchronous counters available?
Hint3 types.
15). Which of the following circuit is responsible for driving the counter circuit with delay _____?
HintTime wavelet.
16). Asynchronous counters are designed with______ type of flip flops.
HintHas one input and output.
17). D-flip flops are used to design ______ counters.
HintSimultaneous.

Asynchronous Counter Quiz Questions and Answers.

18). Ripple counters are used in_____ circuits.
HintLess.
19). Asynchronous counters are used as_______ counters.
HintBy multiples.
20). ________ counters are used to design any MOD number of counters.
HintShortened.
21). Counting error occurs due to ______ propagation delay.
HintNo output observed.
22). Asynchronous counters are used in _____ counters.
HintClosed.
23). Asynchronous counters are used in _____ quantity noise emission.
HintHigher efficiency.
24). Which of the following is the reason for requirement of more flip flops in Asynchronous counters for?
HintPose multiple operation.
25). MOD 3, MOD 5, MOD 7 counters are all ______ type of counters.
Hint1,3,5,7.... are ___ numbers.
26). Always propagation delays are represented by_____ lines.
HintVIBGYOR- third one
27). Clock ripple is used as a_______ counter.
HintWell founded.
28). Asynchronous/Ripple counters are also used in _____ applications.
HintLess.
29). Ripple counters are also used to design _____ counters.
HintTen counter.

Asynchronous Counter Interview Questions and Answers

30). Ripple counters are also used in ____ counters.
HintAlternative name for asynchronous counter.
31). Asynchronous counter can have _______ counting states.
Hint〖(2〗^n-1)2
32). When Modulo-16 asynchronous counter is modified by decade then it is referred as____ counter.
HintTen also called?
33). J-K flip flop multi-vibrators set up for the______ mode.
HintSwitch.
34). Four bit sequence toggles between 1 and _____.
HintNull value
35). Ripple effect is seen in______ circuits.
Hint0/1 adding.
36).In ______ circuits common problem of ripple effect is also observed.
HintChanging information.
Read more aboutBinary Adder and Subtractor Circuits..
37). The output bits will ripple in sequence from ____.
HintLHR=RHS
38)._________ is a technique deployed to gain the output of an asynchronous/ripple counter.
HintBlinking/pulsating
39). Ripple counter circuit is_________ to design.
HintNot difficult.
40). Which of the following is the output frequency for 1-bit asynchronous/ripple counter will be__________?
Hintf/1+1
41). Output frequency for 2-bit asynchronous/ripple counter will be_______?
Hintf/2*2
42). Put M=1 and M^'=0 in Y= M’Q + MQ’, then the output will be?
HintNegative value.
43). Asynchronous decade counter has _____ number of JK Flip-flops.
Hint2*2?
44). Decade counter has 4 JK flip flops and_____ number of logic gates.
HintIf a=1, b=1 then y=0(output)
45). NAND gate in decade counter is represented as _____ IC?
HintICs with decade counter.
46). Decimal value of 1001 is___?
Hint1000+1
47). Binary number of decimal value 7 is______?
Hint0110+1.
48). Decimal value of binary number 0011 is____?
Hint0010+1=?
49). Binary value of 6 is represented by______?
Hint0101+1=?
50). When decade counters output reaches to decimal value 9 then the counters are _____ to zero.
HintRestart.
51). Abbreviation of BCD is____?
HintDecimal with binary values.
52). 3-bit flip flop arrangement counter can have___ falling edges.
HintCube of 2.
53). Number of states depends on number of _____________ occupied in the circuit.
HintTurn about 0/1 or 1/0.
54). Designing of counters depends upon types of _______ component used.
HintTurn about 0/1 or 1/0.
55). Which of the following is the range of Asynchronous/Ripple counter, counting range?
HintMaximum coverage range.

Asynchronous Counter MCQs for Exams

56). Which of the following parameter is the major difference between Up and down counter flip flop?
HintSwitching.
Read more about Digital Counter .
57). In up-counter, we use positive edge flip flops which are represented by____?
HintNegative value.
58). In down counter we use Q as ______?
HintTimer.
59). Up/down counter works depending upon the _____ switch.
HintShortlisting.
60). Up and down counters use _____ with clock signals.
Hint(1+1)*1
61). Asynchronous BCD counter is same as Ripple ____ counter.
HintRaise-up.
62). To count the truncated counters sequence, additional _____ logic is needed.
HintResponse.
63). For designing BCD counter ____ number of T-flip flops are required.
Hint2*2?
64). Delay of next flip flop is added to the sum of individual flip flops are known as _________.
HintTransmission delay.
65). The operation of Up/down counter is very ____ than up counter.
HintDelay in operation od Up/down counter.
66). Down counter is quick than _______ counter.
HintWhich counts in both directions.
67). Because of additional propagation delay added to _____ gate, up/down becomes slower.
HintIf a=1, b=1 then y=0(output).
68). In clock ripple, at clock pulse 8 the output should change from 11102 to _____.
Hint99090-11102
69). If present count=3, then the next count will be____ using down counter.
HintSum of count-1.
70). 4-bit down counter counts from_____.
HintDescending order.
71). If present count=3, then the next count will be____ using up counter.
HintSum of count+1
72). In asynchronous 4-bit up counter with d- flip flop it counts from 0 to ___.
HintPreceding number of 16.
73). Asynchronous counter is also known as_____ counter.
HintSide-by-side.
74). ____________ are produced in asynchronous counter.
HintInaccuracy.
75).______________ is fixed in asynchronous counter.
HintTotal order.

For More MCQs

  • Synchronous Counter Question & Answers
clock.png

Time is Up!

clock.png

Time's up

Recent Posts

  • What is Antenna Array : Architecture & Its Applications
  • What is Digital Potentiometer : Working & Its Applications
  • What is Yagi Uda Antenna : Design, Working & Its Applications
  • What is Preprocessor : Definition, Syntax & Its Commands
  • What is a Heat Sink : Working and Its Applications
  • What is PID Controller : Working, Types & Its Applications
  • What is CAN Protocol : Architecture, Working and Types
  • What is Potentiometer : Working & Its Applications
  • What is an Open Collector : Configuration, Working & Advantages
  • What is a Digital Voltmeter : Working & Its Advantages
  • What is Power Capacitor : Working & Its Applications
  • What is Serial Peripheral Interface : Working and Its Applications

Categories

  • Articles (20)
  • Basics (112)
  • Communications (50)
  • Components (38)
  • Digital Electronics (41)
  • Digital Signalling (2)
  • Electronics (165)
  • Embedded Systems (11)
  • Magnetism (5)
  • Microprocessors (3)
  • Modulation (1)
  • Projects (15)

Subscribe to Our Newsletter

Don’t miss these articles!

We don’t spam! Read our privacy policy for more info.

Check your inbox or spam folder to confirm your subscription.

Category

  • Electronics
  • Components
  • Digital Electronics
  • Embedded Systems
  • Projects

Most Read

  • Electronic Components
  • Multiplexer
  • ARM Architecture
  • 8051 Microcontroller Architecture

ABOUT

  • Contact Us
  • Privacy Policy

Copyright © 2021 · WatElectronics.com | Contact Us | Privacy Policy