Comparators MCQ

Test your knowledge with important Comparators MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Comparators MCQs at Bissoy

• For a particular op-amp hysteresis is governed by _______________
  ক

  Resistor R1

  খ

  Resistor R2

  গ

  Both resistors R1 and R2

  ঘ

  Op-amp parameters
• Which of the following is converted to square wave in Schmitt trigger?
  ক

  Sine wave

  খ

  Triangular wave

  গ

  Pulse wave

  ঘ

  All of the mentioned
• Threshold voltage for switching in Schmitt trigger is determined by _______________
  ক

  Resistor R1

  খ

  Resistor R2

  গ

  Both resistors

  ঘ

  None of the mentioned
• Difference between levels on input that causes transition in Schmitt trigger is ___________
  ক

  Hysteresis

  খ

  Threshold

  গ

  Cut-off value

  ঘ

  Peak value
• Schmitt trigger is a sine wave generator.
  ক

  True

  খ

  False
• Which of the following are used in window comparators?
  ক

  Op-amps and AND gates

  খ

  OP-amps and OR gates

  গ

  Op-amps and XOR gates

  ঘ

  OP-amps and NAND gates
• Which of the following detect the presence of a voltage between two voltages?
  ক

  Zero crossing detector

  খ

  Differential comparator

  গ

  Window comparator

  ঘ

  None of the mentioned
• Zero crossing detector has ____________ as reference voltage.
  ক

  +ve Vcc

  খ

  –ve Vcc

  গ

  Zero V

  ঘ

  5V
• Which of the following can act as a comparator?
  ক

  Op-amp with negative feedback

  খ

  Op-amp with positive feedback

  গ

  Op-amp without feedback

  ঘ

  None of the mentioned
• Which of the following device is similar to analog comparator?
  ক

  Analog switch

  খ

  MCB

  গ

  Energy meter

  ঘ

  Digital switch