Digital Circuits MCQ

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

• INHIBIT gate is ________ gate with an inhibiting input.
  ক

  AND gate

  খ

  OR gate

  গ

  EX-OR gate

  ঘ

  NOT gate
• The output will be logic ‘1’ only if all the inputs are ‘0’. Which gate must be used to execute this condition?
  ক

  AND gate

  খ

  NAND gate

  গ

  NOR gate

  ঘ

  EX-OR gate
• Two switches are in parallel and are connected with a lamp and supply in series. This represents which of the following logic gate?
  ক

  AND gate

  খ

  OR gate

  গ

  EX-OR gate

  ঘ

  NOT gate
• Given below is the equivalent circuit of a logic gate. Identify the logic gate.
  ক

  AND gate

  খ

  OR gate

  গ

  EX-OR gate

  ঘ

  NOT gate
• 1001 is a data presented on a set of binary coded decimal output lines. What would be the decimal equivalent of this number in the case of negative logic?
  ক

  9

  খ

  6

  গ

  1

  ঘ

  8
• Which of the following is the binary equivalent of the decimal number 10?
  ক

  1100

  খ

  1010

  গ

  1011

  ঘ

  1110
• Which of the following is known as a nibble?
  ক

  1 bit

  খ

  4 bits

  গ

  8 bits

  ঘ

  16 bits
• Which of the following can be used to store information?
  ক

  Gates

  খ

  ADC

  গ

  DAC

  ঘ

  Flip-flops
• Which of the following samples the analog signals to obtain their digital equivalent?
  ক

  Analog to digital converter

  খ

  Electronic counter

  গ

  Comparator

  ঘ

  Digital to analog converter
• In analytical instrumentation, little circuitry is concerned with the amplification and processing of signals.
  ক

  True

  খ

  False
• The classic multivibrator circuit is known as ____________
  ক

  Metal-coupled multivibrator

  খ

  Plate-coupled multivibrator

  গ

  Parallel-plate coupled multivibrator

  ঘ

  Alternate-plate coupled multivibrator
• Monostable multivibrator can also be termed as ____________
  ক

  Full astable multivibrator

  খ

  Half astable multivibrator

  গ

  Half bistable multivibrator

  ঘ

  Full bistable multivibrator
• In an astable multivibrator, the amplifying elements are ____________
  ক

  FET

  খ

  JFET

  গ

  OP-AMP

  ঘ

  All of the Mentioned
• Astable circuit acts as a/an ____________
  ক

  Amplifier

  খ

  Oscillator

  গ

  Relaxation oscillator

  ঘ

  Multiplexer
• Bistable circuit is also known as ____________
  ক

  Latch

  খ

  Gate

  গ

  Flip-flop

  ঘ

  Bidirectional circuit
• Bistable multivibrator is ________ in any state.
  ক

  Stable

  খ

  Unstable

  গ

  Saturated

  ঘ

  Independent
• Monostable multivibrator is/has ________ state.
  ক

  Stable

  খ

  Unstable

  গ

  One stable and another unstable

  ঘ

  Independent
• Astable multivibrator is ________ in any state.
  ক

  Stable

  খ

  Unstable

  গ

  Saturated

  ঘ

  Both Stable & Saturated
• How many types of multivibrators are?
  ক

  2

  খ

  4

  গ

  5

  ঘ

  3
• Multivibrators are characterized by ____________
  ক

  Registers

  খ

  Capacitors

  গ

  Transistors

  ঘ

  All of the Mentioned
• A multivibrator is an electronic circuit used to implement ____________
  ক

  Oscillator

  খ

  Timer

  গ

  Flip-flop

  ঘ

  All of the Mentioned
• A stepper motor HDL application must include _____________
  ক

  Sequencers and multiplexers

  খ

  Types and bits

  গ

  Counters and decoders

  ঘ

  Variables and processes
• A major block which is not a part of an HDL frequency counter _____________
  ক

  Timing and control unit

  খ

  Decoder/display

  গ

  Display register

  ঘ

  Bit shifter
• In the keypad application, the preset state of the ring counter define _____________
  ক

  The NANDing of the columns

  খ

  The NANDing of the rows

  গ

  The proper output of the column encoder

  ঘ

  The proper output of the row encoder
• A step which should be followed in project management is known as _____________
  ক

  Overall definition

  খ

  System documentation

  গ

  Synthesis and testing

  ঘ

  System integration
• When a key is pressed, what does the ring counter in the HDL keypad application do?
  ক

  Count to find the row

  খ

  Freeze

  গ

  Count to find the column

  ঘ

  Start the D flip-flop
• What does the data signal do in the keypad application?
  ক

  The row and column encoded data

  খ

  The ring encoded data

  গ

  The freeze locator data

  ঘ

  The ring counter data
• In a digital clock application, the basic frequency must be divided down as _____________
  ক

  1 Hz

  খ

  60 Hz

  গ

  100 Hz

  ঘ

  1000 Hz
• In an HDL application of a stepper motor, what is done next after an up/down counter is built?
  ক

  Build the sequencer

  খ

  Test it on a simulator

  গ

  Test the decoder

  ঘ

  Design an intermediate integer variable
• The output frequency related to the sampling interval of a frequency counter as _____________
  ক

  Directly with the sampling interval

  খ

  Inversely with the sampling interval

  গ

  More precision with longer sampling interval

  ঘ

  Less precision with longer sampling interval