Digital Electronics Logic Gates Questions and Answers

Take Exam

Digital Electronics Logic Gates questions with answers form the base of circuit design and digital systems. Students preparing for GATE, DRDO, and BARC exams must understand AND, OR, NOT, NAND, NOR, XOR, and XNOR gate operations. Practicing these electronics MCQs improves problem-solving accuracy in truth tables, Boolean algebra, and logic circuit simplification. These programming-style questions with explanations are ideal for both technical interviews and competitive electronics exams.

Covers types and functions of logic gates. Complement with digital electronics combinational logic circuits and boolean algebra

Digital Electronics Logic Gates

Showing 10 of 78 questions

61. A NOR gate output is LOW if any of its inputs is LOW.

  • TRUE
  • FALSE
Show Answer Report

62. As a rule, CMOS has the lowest power consumption of all IC families.

  • TRUE
  • FALSE
Show Answer Report

63. A popular waveform generator is the Johnson shift counter.

  • TRUE
  • FALSE
Show Answer Report

64. Good troubleshooting is done by looking at the input signal and how it interacts with the circuits.

  • TRUE
  • FALSE
Show Answer Report

65. A NOR gate and an OR gate operate in exactly the same way.

  • TRUE
  • FALSE
Show Answer Report

66. An OR array is programmed by blowing fuses to eliminate selected variables from the output functions.

  • TRUE
  • FALSE
Show Answer Report

67. A NAND gate output is LOW only if all the inputs are HIGH.

  • TRUE
  • FALSE
Show Answer Report

68. An AND gate output is LOW if all the inputs are HIGH.

  • TRUE
  • FALSE
Show Answer Report

69. Power is connected to pins 7 and 14 of a 7408 quad two-input AND gate IC to allow voltage for all four AND gates on the IC.

  • TRUE
  • FALSE
Show Answer Report

70. An exclusive-NOR gate output is HIGH when the inputs are unequal.

  • TRUE
  • FALSE
Show Answer Report
Digital Electronics
Questions and Answers for Competitive Exams Various Entrance Test