All Courses
Get the App Signup / Login
Sign in Open App
Electronics and Communication Engineering (ECE) Exam  >  Electronics and Communication Engineering (ECE) Tests  >  Test: Combinational Logic Circuits - 1 - Electronics and Communication Engineering (ECE) MCQ

Test: Combinational Logic Circuits - 1 - Electronics and Communication Engineering (ECE) MCQ


Test Description

20 Questions MCQ Test - Test: Combinational Logic Circuits - 1

Test: Combinational Logic Circuits - 1 for Electronics and Communication Engineering (ECE) 2024 is part of Electronics and Communication Engineering (ECE) preparation. The Test: Combinational Logic Circuits - 1 questions and answers have been prepared according to the Electronics and Communication Engineering (ECE) exam syllabus.The Test: Combinational Logic Circuits - 1 MCQs are made for Electronics and Communication Engineering (ECE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Combinational Logic Circuits - 1 below.
Solutions of Test: Combinational Logic Circuits - 1 questions in English are available as part of our course for Electronics and Communication Engineering (ECE) & Test: Combinational Logic Circuits - 1 solutions in Hindi for Electronics and Communication Engineering (ECE) course. Download more important topics, notes, lectures and mock test series for Electronics and Communication Engineering (ECE) Exam by signing up for free. Attempt Test: Combinational Logic Circuits - 1 | 20 questions in 60 minutes | Mock test for Electronics and Communication Engineering (ECE) preparation | Free important questions MCQ to study for Electronics and Communication Engineering (ECE) Exam | Download free PDF with solutions
Test: Combinational Logic Circuits - 1 - Question 1
Save

A switching function of four variable, f (w, x y, z) is to equal the product of two other function f1 and f2, of the same variable f = f1f2 . The function f and f1 are as follows :

f = ∑m(4,7,15)

f = ∑m(0,1,2, 3, 4,7, 8,9,10,11,15)

Que: The number of full specified function, that will satisfy the given condition, is

Detailed Solution for Test: Combinational Logic Circuits - 1 - Question 1

f = ∑m(4,7,15)

f1 = ∑m(0,1,2, 3, 4,7, 8,9,10,11,15)

f2 = ∑m(4,7,15) + ∑dc(5, 6, 12, 13, 14)

There are 5 don't care condition. So 25 = 32 different functions f2 

Test: Combinational Logic Circuits - 1 - Question 2
Save

A switching function of four variable, f (w, x y, z) is to equal the product of two other function f1 and f2, of the same variable f = f1f2 . The function f and f1 are as follows :

f = ∑m(4,7,15)

f1 = ∑m(0,1,2, 3, 4,7, 8,9,10,11,15)

Que: The simplest function for f2 is

Detailed Solution for Test: Combinational Logic Circuits - 1 - Question 2

1 Crore+ students have signed up on EduRev. Have you? Download the App
Test: Combinational Logic Circuits - 1 - Question 3
Save

A four-variable switching function has minterms m6 and m9. If the literals in these minterms are complemented, the corresponding minterm numbers are

Detailed Solution for Test: Combinational Logic Circuits - 1 - Question 3

Test: Combinational Logic Circuits - 1 - Question 4
Save

The minimum function that can detect a “divisible by 3’’ 8421 BCD code digit (representation D8 D4 D2 D1 ) is given by
Detailed Solution for Test: Combinational Logic Circuits - 1 - Question 4

0, 3, 6 and 9 are divisible by 3

f = 

Test: Combinational Logic Circuits - 1 - Question 5
Save

Detailed Solution for Test: Combinational Logic Circuits - 1 - Question 5

Test: Combinational Logic Circuits - 1 - Question 6
Save

For a binary half subtractor having two input A and B, the correct set of logical expressions for the outputs D = (A - B) and X (borrow) are
Detailed Solution for Test: Combinational Logic Circuits - 1 - Question 6

Test: Combinational Logic Circuits - 1 - Question 7
Save

Detailed Solution for Test: Combinational Logic Circuits - 1 - Question 7

Test: Combinational Logic Circuits - 1 - Question 8
Save

What type of logic circuit is represented by the figure shown below?

digital-circuits-questions-answers-combinational-circuits-q2
Detailed Solution for Test: Combinational Logic Circuits - 1 - Question 8

After solving the circuit we get (A’B’)+AB as output, which is XNOR operation. Thus, it will produce 1 when inputs are even number of 1s or all 0s, and produce 0 when input is odd number of 1s.

Test: Combinational Logic Circuits - 1 - Question 9
Save

The building block shown in fig. is a active high output decoder.

Que: The output X is
Detailed Solution for Test: Combinational Logic Circuits - 1 - Question 9

Test: Combinational Logic Circuits - 1 - Question 10
Save

The building block shown in fig. is a active high output decoder.

Que: The output Y is
Detailed Solution for Test: Combinational Logic Circuits - 1 - Question 10

Test: Combinational Logic Circuits - 1 - Question 11
Save

A logic circuit consist of two 2 x 4 decoder as shown in fig.

The output of decoder are as follow

The value of f ( x, y, z) is
Detailed Solution for Test: Combinational Logic Circuits - 1 - Question 11

Test: Combinational Logic Circuits - 1 - Question 12
Save

Number of 2 × 1 Multiplexers are required to implement 64 × 1 Multiplexers
Detailed Solution for Test: Combinational Logic Circuits - 1 - Question 12

A 64 × 1 multiplexer has 64 inputs so if we use 2 × 1 multiplexers 32 are needed in the first stage for 64 inputs, the output of these 32 multiplexers are connected to inputs of 16 multiplexers in the second stage.

Similarly, in third stage, 8 (2 × 1) multiplexers are used, in fourth stage 4 are used and finally 2 (2 × 1) multiplexers in the fifth stage, 1 in the sixth stage.

Total 2 × 1 multiplexers needed are 32 + 16 + 8 + 4 + 2 + 1 = 63

 

Test: Combinational Logic Circuits - 1 - Question 13
Save

How many 3-line-to-8-line decoders are required for a 5-of-32 decoder?
Detailed Solution for Test: Combinational Logic Circuits - 1 - Question 13



Test: Combinational Logic Circuits - 1 - Question 14
Save

Number of 2 × 1 Multiplexers are required to implement 64 × 1 Multiplexers
Detailed Solution for Test: Combinational Logic Circuits - 1 - Question 14

A 64 × 1 multiplexer has 64 inputs so if we use 2 × 1 multiplexers 32 are needed in the first stage for 64 inputs, the output of these 32 multiplexers are connected to inputs of 16 multiplexers in the second stage.

Similarly, in third stage, 8 (2 × 1) multiplexers are used, in fourth stage 4 are used and finally 2 (2 × 1) multiplexers in the fifth stage, 1 in the sixth stage.

Total 2 × 1 multiplexers needed are 32 + 16 + 8 + 4 + 2 + 1 = 63

Test: Combinational Logic Circuits - 1 - Question 15
Save

The network shown in fig. implements
Detailed Solution for Test: Combinational Logic Circuits - 1 - Question 15

Test: Combinational Logic Circuits - 1 - Question 16
Save

The MUX shown in fig. P4.2.31 is 4 * 1 multiplexer. The output Z is
Detailed Solution for Test: Combinational Logic Circuits - 1 - Question 16

Correct Answer :- c

Explanation : Z = (bar AB)C + (bar A)B + (bar B)A + AB

= (bar A)[(barB)C + B) + A[(bar B) + B]

= (bar A)[(B + C)] + A

= A + B + C

Test: Combinational Logic Circuits - 1 - Question 17
Save

The output of the 4 x 1 multiplexer shown in fig. is
Test: Combinational Logic Circuits - 1 - Question 18
Save

The MUX shown in fig. is a 4 x 1 multiplexer. The output Z is
Detailed Solution for Test: Combinational Logic Circuits - 1 - Question 18

Test: Combinational Logic Circuits - 1 - Question 19
Save

Detailed Solution for Test: Combinational Logic Circuits - 1 - Question 19

The output from the upper first level multiplexer is fa and from the lower first level multiplexer is fb

Test: Combinational Logic Circuits - 1 - Question 20
Save

For the logic circuit shown in fig.the output Y is
Detailed Solution for Test: Combinational Logic Circuits - 1 - Question 20

Information about Test: Combinational Logic Circuits - 1 Page
In this test you can find the Exam questions for Test: Combinational Logic Circuits - 1 solved & explained in the simplest way possible. Besides giving Questions and answers for Test: Combinational Logic Circuits - 1, EduRev gives you an ample number of Online tests for practice

Top Courses for Electronics and Communication Engineering (ECE)

Download as PDF

Top Courses for Electronics and Communication Engineering (ECE)

Important Questions for Combinational Logic Circuits - 1

Find all the important questions for Combinational Logic Circuits - 1 at EduRev.Get fully prepared for Combinational Logic Circuits - 1 with EduRev's comprehensive question bank and test resources. Our platform offers a diverse range of question papers covering various topics within the Combinational Logic Circuits - 1 syllabus. Whether you need to review specific subjects or assess your overall readiness, EduRev has you covered. The questions are designed to challenge you and help you gain confidence in tackling the actual exam. Maximize your chances of success by utilizing EduRev's extensive collection of Combinational Logic Circuits - 1 resources.

Combinational Logic Circuits - 1 MCQs with Answers

Prepare for the Combinational Logic Circuits - 1 within the Electronics and Communication Engineering (ECE) exam with comprehensive MCQs and answers at EduRev. Our platform offers a wide range of practice papers, question papers, and mock tests to familiarize you with the exam pattern and syllabus. Access the best books, study materials, and notes curated by toppers to enhance your preparation. Stay updated with the exam date and receive expert preparation tips and paper analysis. Visit EduRev's official website today and access a wealth of videos and coaching resources to excel in your exam.

Online Tests for Combinational Logic Circuits - 1

Practice with a wide array of question papers that follow the exam pattern and syllabus. Our platform offers a user-friendly interface, allowing you to track your progress and identify areas for improvement. Access detailed solutions and explanations for each test to enhance your understanding of concepts. With EduRev's Online Tests, you can build confidence, boost your performance, and ace Combinational Logic Circuits - 1 with ease. Join thousands of successful students who have benefited from our trusted online resources.
© EduRev
Education Revolution
Follow Us
Signup to see your scores go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup