Digital Logic Circuits (DLC) MCQs with answers Page - 24

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Q. The inputs of SR latch are

  • (A) x and y
  • (B) a and b
  • (C) s and r
  • (D) j and k

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Q. When a high is applied to the Set line of an SR latch, then

  • (A) q output goes high
  • (B) q’ output goes high
  • (C) q output goes low
  • (D) both q and q’ go high

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Q. When both inputs of SR latches are low, the latch

  • (A) q output goes high
  • (B) q’ output goes high
  • (C) it remains in its previously set or reset state
  • (D) it goes to its next set or reset state

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Q. When both inputs of SR latches are high, the latch goes

  • (A) unstable
  • (B) stable
  • (C) metastable
  • (D) bistable

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Q. The full form of MOS is

  • (A) metal oxide semiconductor
  • (B) metal oxygen semiconductor
  • (C) metallic oxide semiconductor
  • (D) metallic oxygen semiconductor

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Q. What are the types of MOSFET devices available?

  • (A) p-type enhancement type mosfet
  • (B) n-type enhancement type mosfet
  • (C) depletion type mosfet
  • (D) all of the mentioned

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Q. Which insulating layer used in the fabrication of MOSFET?

  • (A) aluminium oxide
  • (B) silicon nitride
  • (C) silicon dioxide
  • (D) aluminium nitrate

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Q. Which of the following is the Universal Flip-flop?

  • (A) s-r flip-flop
  • (B) j-k flip-flop
  • (C) master slave flip-flop
  • (D) d flip-flop

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Q. How many types of triggering takes place in a flip flops?

  • (A) 3
  • (B) 2
  • (C) 4
  • (D) 5

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Q. The term synchronous means _

  • (A) the output changes state only when any of the input is triggered
  • (B) the output changes state only when the clock input is triggered
  • (C) the output changes state only when the input is reversed
  • (D) the output changes state only when the input follows it

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