Number Systems and Codes Questions and Answers
Number Systems and Codes Questions with Answers form the foundation of digital electronics reasoning and aptitude exams. This topic includes binary, octal, decimal, and hexadecimal number conversions, along with coding systems like Gray, ASCII, and BCD. Competitive exams such as GATE, DRDO, and ISRO often test candidates’ logical understanding of number representation and digital computation. Practicing reasoning questions and answers with step-by-step solutions builds numerical reasoning and circuit analysis confidence. Each question is structured to test clarity on base conversions, weighted codes, and arithmetic operations. With these aptitude-based questions, you can easily master the numerical logic behind digital systems. Download the PDF and start your reasoning test practice online today.
Number Systems and Codes
121. The primary advantage of the hexadecimal numbering system is the ease in conversion between the binary and hexadecimal systems
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123. The primary advantage of the hexadecimal number system is the ease with which conversion can be made between binary and hexadecimal numbers.
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- FALSE
124. A binary code decimal representation of a binary number will always have more bits than the binary number.
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- FALSE
128. A method of converting decimal to binary is by successive division.
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- FALSE
130. Digital circuitry is the foundation of digital computers and many automated control systems.
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- FALSE