## Digital Electronics Digital Arithmetic Operations and Circuits Online Test

#### Finish Quiz

0 of 30 questions completed

Questions:

- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- 15
- 16
- 17
- 18
- 19
- 20
- 21
- 22
- 23
- 24
- 25
- 26
- 27
- 28
- 29
- 30

#### Information

Digital Electronics Digital Arithmetic Operations and Circuits Online Test. The Digital Electronics Full online mock test paper is free for all students and Very Helpful for Exam Preparation. Digital Electronics Question and Answers in English. Digital Electronics Online Mock test for Digital Electronics Digital Arithmetic Operations and Circuits Topic. Here we are providing** Digital Electronics Digital Arithmetic Operations and Circuits Online Test Series in English. Check Digital Electronics **Mock Test Series 2019.

This paper has **30 questions**.

Time allowed is **30 minutes**.

The Digital Electronics online Mock Test Exam is Very helpful for all students. Now Scroll down below n click on **“Start Quiz” or “Start Test” **and Test yourself.

You have already completed the quiz before. Hence you can not start it again.

Quiz is loading...

You must sign in or sign up to start the quiz.

You have to finish following quiz, to start this quiz:

#### Results

0 of 30 questions answered correctly

Your time:

Time has elapsed

You have reached 0 of 0 points, (0)

Average score | |

Your score |

#### Categories

- Not categorized 0%

Pos. | Name | Entered on | Points | Result |
---|---|---|---|---|

Table is loading | ||||

No data available | ||||

- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- 15
- 16
- 17
- 18
- 19
- 20
- 21
- 22
- 23
- 24
- 25
- 26
- 27
- 28
- 29
- 30

- Answered
- Review

- Question 1 of 30
##### 1. Question

For a 4-bit parallel adder, if the carry-in is connected to a logical HIGH, the result is:

CorrectIncorrect - Question 2 of 30
##### 2. Question

What is the first thing you will need if you are going to use a macrofunction?

CorrectIncorrect - Question 3 of 30
##### 3. Question

Perform subtraction on each of the following binary numbers by taking the two’s-complement of the number being subtracted and then adding it to the first number.

01001 01100

00011 00111CorrectIncorrect - Question 4 of 30
##### 4. Question

Solving –11 + (–2) will yield which two’s-complement answer?

CorrectIncorrect - Question 5 of 30
##### 5. Question

What are constants in VHDL code?

CorrectIncorrect - Question 6 of 30
##### 6. Question

The 2’s-complement system is to be used to add the signed binary numbers 11110010 and 11110011. Determine, in decimal, the sign and value of each number and their sum.

CorrectIncorrect - Question 7 of 30
##### 7. Question

The most commonly used system for representing signed binary numbers is the:

CorrectIncorrect - Question 8 of 30
##### 8. Question

What is the major difference between half-adders and full-adders?

CorrectIncorrect - Question 9 of 30
##### 9. Question

Fast-look-ahead carry circuits found in most 4-bit full-adder circuits:

CorrectIncorrect - Question 10 of 30
##### 10. Question

The binary subtraction 0 – 0 =

CorrectIncorrect - Question 11 of 30
##### 11. Question

Adding in binary, a decimal 26 + 27 will produce a sum of:

CorrectIncorrect - Question 12 of 30
##### 12. Question

Convert each of the following signed binary numbers (two’s-complement) to a signed decimal number.

00000101 11111100 11111000CorrectIncorrect - Question 13 of 30
##### 13. Question

How many basic binary subtraction operations are possible?

CorrectIncorrect - Question 14 of 30
##### 14. Question

If [A] = 1011 1010, [B] = 0011 0110, and [C] = [A] • [B], what is [C 4..2] in decimal?

CorrectIncorrect - Question 15 of 30
##### 15. Question

Using 4-bit adders to create a 1See Section 6-bit adder:

CorrectIncorrect - Question 16 of 30
##### 16. Question

When performing subtraction by addition in the 2’s-complement system:

CorrectIncorrect - Question 17 of 30
##### 17. Question

The two’s-complement system is to be used to add the signed numbers 11110010 and 11110011. Determine, in decimal, the sign and value of each number and their sum.

CorrectIncorrect - Question 18 of 30
##### 18. Question

When 1100010 is divided by 0101, what is the decimal remainder?

CorrectIncorrect - Question 19 of 30
##### 19. Question

One way to make a four-bit adder perform subtraction is by:

CorrectIncorrect - Question 20 of 30
##### 20. Question

What is the most important operation in binary-coded decimal (BCD) arithmetic?

CorrectIncorrect - Question 21 of 30
##### 21. Question

The range of positive numbers when using an eight-bit two’s-complement system is:

CorrectIncorrect - Question 22 of 30
##### 22. Question

What are the two types of basic adder circuits?

CorrectIncorrect - Question 23 of 30
##### 23. Question

A half-adder circuit would normally be used each time a carry input is required in an added circuit.

CorrectIncorrect - Question 24 of 30
##### 24. Question

If B[7..0] = 10100101, what is the value of B[6..2]?

CorrectIncorrect - Question 25 of 30
##### 25. Question

How many inputs must a full-adder have?

CorrectIncorrect - Question 26 of 30
##### 26. Question

Determine the two’s-complement of each binary number.

00110 00011 11101CorrectIncorrect - Question 27 of 30
##### 27. Question

Solve this binary problem: 01110010 – 01001000 =

CorrectIncorrect - Question 28 of 30
##### 28. Question

What distinguishes the look-ahead-carry adder?

CorrectIncorrect - Question 29 of 30
##### 29. Question

Half-adders can be combined to form a full-adder with no additional gates.

CorrectIncorrect - Question 30 of 30
##### 30. Question

Which of the following is correct for full adders?

CorrectIncorrect