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Binary Addition Question & Answers

December 20, 2021 By WatElectronics

This article lists 100 Binary Addition MCQs for engineering students. All the Binary Addition 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 their fundamentals on Binary Addition.

A digital or electronics system mainly relies on the binary representation that is in logic 0 or logic 1 form.  In other words, the process of representing the numeric value in logic binary 0’s and 1’s is called binary number or binary number representation.

There are 3 main tasks that can be performed on binary number systems namely binary addition, binary multiplication & binary subtraction, using logic gates and IC’s.

A device that performs addition on binary bits is called a binary adder. Binary addition is represented in base 2. The 2 main components of a binary adder include opcode and operator which are responsible for performing binary addition. A binary adder requires a minimum of 2 bits to perform addition.

For example a+b where a,b are opcode and “+” operand. These binary adders are further divided into half-bit and full-bit binary adders. Where a half adder has 2 inputs (A, B) and 2 outputs (Cout, Carryout) and a full adder has 3 inputs (A, B, Cin) and 2 outputs (Cout, Carryout). The resultant output obtained from binary addition is normalized and represented as a Boolean equation using K-map and logic gates. These binary adders are commonly implemented in counters and arithmetic circuits.

1). A binary operation is performed on minimum of ____ operands?

Hint
2). Which of the following are the terms used while performing binary calculation?

Hint
3). Identify the operand from the example 2+3=5?

Hint
4). Identify the operator from the example a+b?

Hint
5). A binary addition is performed using _____ symbol?

Hint
6). Which of the following are binary operations?

Hint
7). A binary addition calculation is performed similar to ____ type of system?

Hint
8). A binary addition is represented using ____ base value?

Hint
9). How many digits are used in a binary addition?

Hint
10). Logic 0 in binary operation represents ____ state of a digital circuit?

Hint
11). Logic 1 in binary operation represents ____ state of a digital circuit?

Hint
12). In binary addition, what is the output of 0+0?

Hint
13). In binary addition, what is the output of 0+1?

Hint
14). In binary addition, what is the output of 1+0?

Hint
15). In binary addition, what is the output of 1+1?

Hint
16). In how many steps binary addition is performed?

Hint
17). Which of the following is the first step of binary addition of 101 + 101?

Hint
18). Which of the following is the second step of binary addition of 101 + 101?

Hint
19). Which of the following is the third step of binary addition of 101 + 101?

Hint
20). Which of the following is the fourth step of binary addition of 101 + 101?

Hint
21). How many optional steps are performed in binary addition?

Hint
22). Identify the binary addition output of 10001 + 11101=_______?

Hint
23). Identify the binary addition output of 10111 + 110001=_______?

Hint
24). Which of the following binary digit represents positive value?

Hint
25). Which of the following binary digit represents negative value?

Hint

Binary Addition  Interview Questions and Answers

26). Identify the 1’s complement of 1111 & -1101?

Hint
27). Identify the 1’s complement of -1010 & -0011?

Hint
28). How many digits are used in decimal number system compared to binary system?

Hint
29). Which of the following is the base value of decimal number system?

Hint
30). A binary number -1101 is represented in _____ binary form?

Hint
31). A binary number 1101 is represented in _____ binary form?

Hint
32). Which of the following is the correct representation of binary number 01110?

Hint
33). Which of the following term represents the negative value of a binary number -1010?

Hint
34). Which of the following is the MSB bit of 10100 binary number?

Hint
35). Which of the following is the LSB bit of 10100 binary number?

Hint
36). MSB bit in binary number is abbreviated as ________?

Hint
37). LSB bit in binary number is abbreviated as ________?

Hint
38). Which of the following is the carry bit obtained from “00” binary addition?

Hint
39). Which of the following is the carry bit obtained from “01” binary addition?

Hint
40). Which of the following is the carry bit obtained from “10” binary addition?

Hint
41). Which of the following is the carry bit obtained from “11” binary addition?

Hint
42). A binary addition can be digital represented using ___ components?

Hint
43). Which of the following are the logic gates used in binary half adders?

Hint
Read more about Half Adder.
44). Which of the following is the 4bit binary representation of number “1”?

Hint
45). Which of the following is the 4bit binary representation of number “2”?

Hint
46). Which of the following is the 4bit binary representation of number “3”?

Hint
47). Which of the following is the 4bit binary representation of number “4”?

Hint
48). Which of the following is the 4bit binary representation of number “5”?

Hint
49). Which of the following is the 4bit binary representation of number “6”?

Hint
50). Which of the following is the 4bit binary representation of number “7”?

Hint

Binary Addition Important Questions for Interviews

51). Which of the following is the 4bit binary representation of number “8”?

Hint
52). Which of the following is the 4bit binary representation of number “9”?

Hint
53). Which of the following is the 4bit binary representation of number “10”?

Hint
54). Which of the following is the 4bit binary representation of number “11”?

Hint
55). Which of the following is the 4bit binary representation of number “12”?

Hint
56). Which of the following is the 4bit binary representation of number “13”?

Hint
57). Which of the following is the 4bit binary representation of number “14”?

Hint
58). Which of the following is the 4bit binary representation of number “15”?

Hint
59). The binary value representation of 15 is “1111” this value is represented by assigning ___?

Hint
60). Which of the following among weight (8,4,2,1 = 4 bit representation) is LSB bit?

Hint
61). Which of the following among weight (8,4,2,1 = 4 bit representation) is MSB bit?

Hint
62). Which of the following is the value of 1’s complement of binary value 0001?

Hint
63). Which of the following is the value of 1’s complement of binary value 0011?

Hint
64). Which of the following is the value of 1’s complement of binary value 1111?

Hint
65). Which of the following is the value of 1’s complement of binary value 0000?

Hint
66). Which of the following is the value of 1’s complement of binary value 0010?

Hint
67). Which of the following is the value of 1’s complement of binary value 0100?

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68). Which of the following is the value of 1’s complement of binary value 0101?

Hint
69). Which of the following is the value of 1’s complement of binary value 0110?

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70). Which of the following is the value of 1’s complement of binary value 0111?

Hint
71). Which of the following is the value of 1’s complement of binary value 1001?

Hint
72). Which of the following is the value of 1’s complement of binary value 1010?

Hint
73). Which of the following is the value of 1’s complement of binary value 1011?

Hint
74). Which of the following is the value of 1’s complement of binary value 1100?

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75). Which of the following is the value of 1’s complement of binary value 1101?

Hint

Binary Addition Quiz Questions and Answers.

76). Which of the following is the value of 1’s complement of binary value 1110?

Hint
77). Which of the following is the 2’s complement of -7?

Hint
78). Which of the following is the 2’s complement of -7+6=?

Hint
79). In binary 2 bit adder, which of the following is the output of AND gate with input 0,0?

Hint
80). In binary 2 bit adder, which of the following is the output of AND gate with input 0,1?

Hint
81). In binary 2 bit adder, which of the following is the output of AND gate with input 1,0?

Hint
82). In binary 2 bit adder, which of the following is the output of AND gate with input 1,1?

Hint
83). In binary 2 bit adder, which of the following is the output of XOR gate with input 1,1?

Hint
84). In binary 2 bit adder, which of the following is the output of XOR gate with input 1,0?

Hint
85). In binary 2 bit adder, which of the following is the output of XOR gate with input 0,0?

Hint
86). Identify the logic gate displayed below used in 2 bit adder?

Logic Gate

Logic Gate

Hint
87). Identify the logic gate displayed below used in 2 bit adder?

Logic Gate

Logic Gate

Hint
88). Identify the logic circuit displayed below?

Logic Circuit

Logic Circuit

Hint
89). Identify the logic circuit displayed below?

Logic Circuit

Logic Circuit

Hint
90). An XOR logic gate is a combination of ____ logic gates?

Hint
91). Which of the following is the output of OR gate with input 00?

Hint
92). Which of the following is the output of OR gate with input 01?

Hint
93). Which of the following is the output of OR gate with input 10?

Hint
94). Which of the following is the output of OR gate with input 11?

Hint
95). How many types of binary adders exist?

Hint
Read more about Full Adder.
96). Which of the equation of SUM in a 2bit adder with inputs A,B?

Hint
97). Which of the equation of CARRY in a 2bit adder with inputs A,B?

Hint
98). Which of the equation of SUM in a 3bit adder with inputs A,B,Cin?

Hint
99). Which of the equation of CARRY in a 3bit adder with inputs A,B,Cin?

Hint
100). Which of the following method is used for representing the 2bit binary adder?

Hint
Read more about K-Map.
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