digital-electronics-mcqs - Set (3)

Correct Answer: Orange && Worng Answer: Red

1. Astable multivibrator has _____ stable state/states.

  • (A). One
  • (B). Two
  • (C). Zero
  • (D). Three
    • View Answer

    Explanation: Not Avilable

    2. IC555 timer can be used in _____

  • (A). Monostable mode
  • (B). Astable mode
  • (C). Bistable mode
  • (D). Both (a) and (b)
    • View Answer

    Explanation: Not Avilable

    3. Clipper circuit uses _____

  • (A). Only diode
  • (B). Only capacitor
  • (C). Both diode and capacitor
  • (D). None of these
    • View Answer

    Explanation: Not Avilable

    4. Bistable multivibrator uses _____

  • (A). Only one input
  • (B). Two inputs
  • (C). Three inputs
  • (D). Four inputs
    • View Answer

    Explanation: Not Avilable

    5. Number of address lines required to address memory chip of size 256 bit :

  • (A). 8
  • (B). 10
  • (C). 12
  • (D). 5
    • View Answer

    Explanation: Not Avilable

    6. Dynamic RAM uses _____ as storage elements.

  • (A). Capacitors
  • (B). Resistors
  • (C). Inductors
  • (D). Transformer
    • View Answer

    Explanation: Not Avilable

    7. MOSRAM can be _____

  • (A). Static
  • (B). Dynamic
  • (C). Static or Dynamic
  • (D). None of these
    • View Answer

    Explanation: Not Avilable

    8. Operational amplifier used in Digital to Analog converter has _____

  • (A). Negative feedback
  • (B). Positive feedback
  • (C). Zero feedback
  • (D). None of these
    • View Answer

    Explanation: Not Avilable

    9. Which of the following DAC is slowest ?

  • (A). Parallel comparator
  • (B). Successive approximation
  • (C). Counting type
  • (D). Dual slope type
    • View Answer

    Explanation: Not Avilable

    10. Maximum quantization error is :

  • (A). ±LSB
  • (B). ±1/2LSB
  • (C). ±1/4LSB
  • (D). ±2LSB
    • View Answer

    Explanation: Not Avilable

    11. Burst data→FIFO register→Y=

  • (A). Constant rate data
  • (B). Burst data
  • (C). Higher rate data
  • (D). Lower rate data
    • View Answer

    Explanation: Not Avilable

    12. In CCD memory, data are entered into a channel serially by depositing a _____ charge for a ‘0’ and a _____ charge for a ‘1’ on the capacitor.

  • (A). small, large
  • (B). large, small
  • (C). small, small
  • (D). large, large
    • View Answer

    Explanation: Not Avilable

    13. Track and sector is related to :

  • (A). Hard disk
  • (B). RAM
  • (C). ROM
  • (D). Transistor
    • View Answer

    Explanation: Not Avilable

    14. Which of the following is true for LCD TV ?

  • (A). LCD stands for Liquid Crystal display
  • (B). Its design is baised on thin film transistors
  • (C). It consists of red, yellow and green filters
  • (D). Both (a) and (b)
    • View Answer

    Explanation: Not Avilable

    15. An astable multivibrator has _____

  • (A). Two quasi-Stable states
  • (B). One quasi-Stable state
  • (C). One stable state
  • (D). Two stable states
    • View Answer

    Explanation: Not Avilable

    16. In a multivibrator circuit, transistor should be used in _____

  • (A). Cut-off region
  • (B). Active region
  • (C). Saturation region
  • (D). Between saturation region and cut-off region
    • View Answer

    Explanation: Not Avilable

    17. Duty cycle = _____

  • (A). TON/TON+TOFF
  • (B). TON/TOFF
  • (C). TOFF/TON
  • (D). TON+TOFF
    • View Answer

    Explanation: Not Avilable

    18. When a rectangular wave is applied to an integrating circuit, the output will be _____

  • (A). A rectangular wave
  • (B). A triangular wave
  • (C). A sharp narrow pulse
  • (D). A sinusoidal wave
    • View Answer

    Explanation: Not Avilable

    19. Which of the following statement is true :

  • (A). A clipper used to add a d.c. component to the signal
  • (B). A clipper is used to remove a portion of an a.c. signal
  • (C). A clamper is used to remove a portion of an a.c. signal
  • (D). None of these
    • View Answer

    Explanation: Not Avilable

    20. Whcih of the following is not a sequential memory :

  • (A). Shift register
  • (B). CCD
  • (C). RAM
  • (D). Magnetic tape
    • View Answer

    Explanation: Not Avilable

    Categories

    C Programming MCQsC++ Programming MCQsJAVA MCQsVisual Basic MCQsData Structure MCQsSoftware Package MCQsComputer Organization and Architecture MCQsOperating System MCQsDigital Electronics MCQsDBMS MCQsSystem Analysis and Management Information System MCQsSystem Maintenance MCQsData Communication and Networking MCQsInternet & Web Technology MCQsSoftware Engineering MCQsManagement (Common) MCQsSystem Software MCQsComputer Graphics MCQsArtificial Intelligence & Expert System MCQsE-Commerce MCQsMultimedia MCQsPower Electronics MCQsTesting & Maintenance Electrical Machine MCQsAutomatic Control System MCQsAdvance Communication System MCQsDigital Electronics MCQs