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DLD (Digital Logic Design) objective questions

 

  1. Which of the following is NOT a basic logic gate? a) AND gate b) OR gate c) XOR gate d) NAND gate e) None of the above

Answer: e) None of the above

  1. Which of the following is a universal gate? a) OR gate b) AND gate c) NOT gate d) NAND gate e) None of the above

Answer: d) NAND gate

  1. Which of the following is an example of combinational logic? a) Flip-flop b) Counter c) Decoder d) Multiplexer e) None of the above

Answer: c) Decoder

  1. Which of the following is used to implement logical functions in digital circuits? a) Resistors b) Diodes c) Transistors d) Capacitors e) None of the above

Answer: c) Transistors

  1. Which of the following is a binary number system? a) Octal b) Decimal c) Hexadecimal d) Binary e) None of the above

Answer: d) Binary

  1. Which of the following is used to represent negative numbers in binary? a) Sign-magnitude representation b) Two's complement representation c) Ones' complement representation d) Excess-3 representation e) None of the above

Answer: b) Two's complement representation

  1. Which of the following is a type of flip-flop? a) SR flip-flop b) JK flip-flop c) D flip-flop d) T flip-flop e) All of the above

Answer: e) All of the above

  1. Which of the following logic gates is represented by the symbol ⊕? a) AND gate b) OR gate c) XOR gate d) NAND gate e) None of the above

Answer: c) XOR gate

  1. Which of the following logic gates is represented by the symbol ↓? a) AND gate b) OR gate c) XOR gate d) NAND gate e) None of the above

Answer: b) OR gate

  1. Which of the following is NOT a method for minimizing Boolean expressions? a) Karnaugh map b) Quine-McCluskey algorithm c) Boolean algebra d) Bubble sort algorithm e) None of the above

Answer: d) Bubble sort algorithm

  1. Which of the following is a sequential logic circuit? a) Decoder b) Multiplexer c) Flip-flop d) Comparator e) None of the above

Answer: c) Flip-flop

  1. Which of the following is NOT a characteristic of a synchronous sequential circuit? a) State memory b) Combinational logic c) Feedback path d) Clock input e) None of the above

Answer: b) Combinational logic

  1. Which of the following is NOT a type of memory in digital circuits? a) ROM b) RAM c) SRAM d) DRAM e) All of the above are types of memory

Answer: e) All of the above are types of memory

  1. Which of the following is a type of digital-to-analog converter (DAC)? a) Successive approximation ADC b) Flash ADC c) Dual-slope ADC d) Sigma-delta ADC e) None of the above

Answer: e) None of the above (DACs are used to convert digital signals to analog signals)

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