Digital Logic Circuits (DLC) MCQs with answers Page - 27

Here, you will find a collection of MCQ questions on Digital Logic Circuits (DLC). Go through these questions to enhance your preparation for upcoming examinations and interviews.

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Q. Let A and B is the input of a subtractor then the borrow will be

  • (A) a and b’
  • (B) a’ and b
  • (C) a or b
  • (D) a and b

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Q. What does minuend and subtrahend denotes in a subtractor?

  • (A) their corresponding bits of input
  • (B) its outputs
  • (C) its inputs
  • (D) borrow bits

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Q. Complement of F’ gives back

  • (A) f’
  • (B) f
  • (C) ff
  • (D) ff’

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Q. Decimal digit in BCD can be represented by

  • (A) 1 input line
  • (B) 2 input lines
  • (C) 3 input lines
  • (D) 4 input lines

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Q. The number of logic gates and the way of their interconnections can be classified as

  • (A) logical network
  • (B) system network
  • (C) circuit network
  • (D) gate network

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Q. EPROM uses an array of

  • (A) p-channel enhancement type mosfet
  • (B) n-channel enhancement type mosfet
  • (C) p-channel depletion type mosfet
  • (D) n-channel depletion type mosfet

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Q. The EPROM was invented by

  • (A) wen tsing chow
  • (B) dov frohman
  • (C) luis o brian
  • (D) j p longwell

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Q. Address decoding for dynamic memory chip control may also be used for

  • (A) chip selection and address location
  • (B) read and write control
  • (C) controlling refresh circuits
  • (D) memory mapping

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Q. Which of the following describes the action of storing a bit of data in a mask ROM?

  • (A) a 0 is stored by connecting the gate of a mos cell to the address line
  • (B) a 0 is stored in a bipolar cell by shorting the base connection to the address line
  • (C) a 1 is stored by connecting the gate of a mos cell to the address line
  • (D) a 1 is stored in a bipolar cell by opening the base connection to the address line

A

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Q. The check sum method of testing a ROM

  • (A) allows data errors to be pinpointed to a specific memory location
  • (B) provides a means for locating and correcting data errors in specific memory locations
  • (C) indicates if the data in more than one memory location is incorrect
  • (D) simply indicates that the contents of the rom are incorrect

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