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MCQs

Total Questions : 457 | Page 4 of 46 pages
Question 31. Consider the representation of six-bit numbers by two’s complement, one’s complement, or by sign and magnitude: In which representation is there overflow from the addition of the integers 011000 and 011000?
  1.    Two’s complement only
  2.    Sign and magnitude and one’s complement only
  3.    Two’s complement and one’s complement only
  4.    All three representations
 Discuss Question
Answer: Option D. -> All three representations
Question 32. Excess-3 code is known as
  1.    Weighted code
  2.    Cyclic redundancy code
  3.    Self-complementing code
  4.    Algebraic code
 Discuss Question
Answer: Option C. -> Self-complementing code
Question 33. The number 10000 would appear just immediately after
  1.    FFFF (hex)
  2.    1111 (binary)
  3.    7777 (octal)
  4.    All of the above
 Discuss Question
Answer: Option D. -> All of the above
Question 34. The only function of NOT gate is to ___________.
  1.    Stop signal
  2.    Invert input signal
  3.    Act as a universal gate
  4.    None of the above
 Discuss Question
Answer: Option B. -> Invert input signal
Question 35. Which of the following gate is a two-level logic gate
  1.    OR gate
  2.    NAND gate
  3.    EXCLUSIVE OR gate
  4.    NOT gate
 Discuss Question
Answer: Option C. -> EXCLUSIVE OR gate
Question 36. When an input signal 1 is applied to a NOT gate, the output is ___________.
  1.    0
  2.    1
  3.    Either 0 & 1
  4.    None of the above
 Discuss Question
Answer: Option A. -> 0
Question 37. Storage of 1 KB means the following number of bytes
  1.    1000
  2.    964
  3.    1024
  4.    1064
 Discuss Question
Answer: Option C. -> 1024
Question 38. The fan put of a 7400 NAND gate is
  1.    8TTL
  2.    5TTL
  3.    2TTL
  4.    10TTL
 Discuss Question
Answer: Option D. -> 10TTL
Question 39. In case of OR gate, no matter what the number of inputs, a
  1.    0 any input causes the output to be at logic 0
  2.    1 at any input causes the output to be at logic 0
  3.    1 at any input causes the output to be at logic 1
  4.    0 at any input causes the output to be at logic 1.
 Discuss Question
Answer: Option C. -> 1 at any input causes the output to be at logic 1
Question 40. The universal gate is ___________
  1.    None of these
  2.    OR gate
  3.    AND gate
  4.    NAND gate
 Discuss Question
Answer: Option D. -> NAND gate

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