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Test: Binary Coded Decimal - Electrical Engineering (EE) MCQ


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10 Questions MCQ Test - Test: Binary Coded Decimal

Test: Binary Coded Decimal for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Test: Binary Coded Decimal questions and answers have been prepared according to the Electrical Engineering (EE) exam syllabus.The Test: Binary Coded Decimal MCQs are made for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Binary Coded Decimal below.
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Test: Binary Coded Decimal - Question 1

The decimal equivalent of the excess-3 number 110010100011.01110101 is _____________

Detailed Solution for Test: Binary Coded Decimal - Question 1

The conversion of binary numbers into digits ‘1100’, ‘1010’, ‘0011’, ‘0111’ and ‘0101’ gives ’12’, ‘5’, ‘3’, ‘7’ and ‘5’ respectively. Hence, the decimal number is 970.42.

Test: Binary Coded Decimal - Question 2

How many bits would be required to encode decimal numbers 0 to 9999 in straight binary codes?

Detailed Solution for Test: Binary Coded Decimal - Question 2

Total number of decimals to be represented = 10000 = 104 = 2n (where n is the number of bits required) = 213.29. Therefore, the number of bits required for straight binary encoding = 14.

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Test: Binary Coded Decimal - Question 3

When numbers, letters or words are represented by a special group of symbols, this process is called __________

Detailed Solution for Test: Binary Coded Decimal - Question 3

When numbers, letters or words are represented by a special group of symbols, this process is called encoding. Encoding in the sense of fetching the codes or words in a computer. It is done to secure the transmission of information.

Test: Binary Coded Decimal - Question 4

Carry out BCD subtraction for (68) – (61) using 10’s complement method.

Detailed Solution for Test: Binary Coded Decimal - Question 4

First the two numbers are converted into their respective BCD form using 8421 sequence. Then binary subtraction is carried out.

Test: Binary Coded Decimal - Question 5

The decimal number 10 is represented in its BCD form as __________

Detailed Solution for Test: Binary Coded Decimal - Question 5

The decimal number 10 is represented in its BCD form as 0001 0000, in accordance to 8421 for each of the two digits.

Test: Binary Coded Decimal - Question 6

The excess-3 code for 597 is given by __________

Detailed Solution for Test: Binary Coded Decimal - Question 6

The addition of ‘3’ to each digit yields the three new digits ‘8’, ’12’ and ’10’. Hence, the corresponding four-bit binary equivalents are 100011001010, in accordance to 8421 format.

Test: Binary Coded Decimal - Question 7

A three digit decimal number requires ________ for representation in the conventional BCD format.

Detailed Solution for Test: Binary Coded Decimal - Question 7

The number of bits needed to represent a given decimal number is always greater than the number of bits required for a straight binary encoding of the same. Hence, a three digit decimal number requires 12 bits for representation in BCD format.

Test: Binary Coded Decimal - Question 8

Code is a symbolic representation of __________ information.

Detailed Solution for Test: Binary Coded Decimal - Question 8

Code is a symbolic representation of discrete information, which may be present in the form of numbers, letters or physical quantities. Mostly, it is represented using a particular number system like decimal or binary and such like.

Test: Binary Coded Decimal - Question 9

Add the two BCD numbers: 1001 + 0100 = ?

Detailed Solution for Test: Binary Coded Decimal - Question 9

Firstly, Add the 1001 and 0100. We get 1101 as output but it’s not in BCD form. So, we add 0110 (i.e. 6) with 1101. As a result we get 10011 and it’s BCD form is 0001 0011.

Test: Binary Coded Decimal - Question 10

Binary coded decimal is a combination of __________

Detailed Solution for Test: Binary Coded Decimal - Question 10

Binary coded decimal is a combination of 4 binary digits. For example-8421.

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