Digital Electronics Combinational Logic Circuits Questions and Answers

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Q31
An encoder in which the highest and lowest value input digits are encoded simultaneously is known as a priority encoder.
  • A TRUE
  • B FALSE
Answer: Option B
Q32
Three select lines are required to address four data input lines.
  • A TRUE
  • B FALSE
Answer: Option B
Q33
Single looping in groups of three is a common K-map simplification technique.
  • A TRUE
  • B FALSE
Answer: Option B
Q34
In true sum-of-products expressions, the inversion signs cannot cover more than single variables in a term.
  • A TRUE
  • B FALSE
Answer: Option A
Q35
A data selector is also called a demultiplexer.
  • A TRUE
  • B FALSE
Answer: Option B
Q36
A digital circuit that converts coded information into a familiar or non-coded form is known as an encoder.
  • A TRUE
  • B FALSE
Answer: Option B
Q37
An exclusive-OR gate will invert a signal on one input if the other is always HIGH.
  • A TRUE
  • B FALSE
Answer: Option A
Q38
The following combination is correct for an EVEN parity data transmission system: data = 100111100 and parity = 0
  • A TRUE
  • B FALSE
Answer: Option B
Q39
The CASE control structure is used when an expression has a list of possible values.
  • A TRUE
  • B FALSE
Answer: Option A
Q40
Even parity is the condition of having an even number of 1s in every group of bits.
  • A TRUE
  • B FALSE
Answer: Option A

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