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MCQs

Total Questions : 228 | Page 1 of 23 pages
Question 1. An OR gate can be imagined as
  1.    All of these
  2.    switches connected in series
  3.    switches connected in parallel
  4.    None of these
  5.    MOS transistors connected in series
 Discuss Question
Answer: Option C. -> switches connected in parallel
Question 2. The functional difference between SR flip-flop and JK flip-flop is that
  1.    JK flip-flop accepts both inputs 1
  2.    JK flip-flop is faster than SR flip-flop
  3.    JK flip-flop does not require external clock
  4.    JK flip-flop has a feed back path
  5.    None of these
 Discuss Question
Answer: Option A. -> JK flip-flop accepts both inputs 1
Question 3. Address 200H contains the byte 3FH. What is the decimal equivalent of 3FH
  1.    None of these
  2.    63
  3.    16
  4.    38
  5.    32
 Discuss Question
Answer: Option B. -> 63
Question 4. Conversion of decimal number 6110 to it's binary number equivalent is
  1.    None of these
  2.    110011102
  3.    1111012
  4.    1100112
  5.    111112
 Discuss Question
Answer: Option C. -> 1111012
Question 5. Conversion of an octal number 1128 to hexadecimal number is
  1.    4A16
  2.    2016
  3.    1516
  4.    5A16
  5.    None of these
 Discuss Question
Answer: Option A. -> 4A16
Question 6. A positive AND gate is also a negative
  1.    None of these
  2.    NAND gate
  3.    NOR gate
  4.    AND gate
  5.    OR gate
 Discuss Question
Answer: Option E. -> OR gate
Question 7. The inverter OR gate and AND gate are called decision-making elements because they can recognize some input _____ while disregarding others. A gate recognizes a word when its output is _____
  1.    character, low
  2.    words, high
  3.    bytes, high
  4.    None of these
  5.    bytes, low
 Discuss Question
Answer: Option B. -> words, high
Question 8. ASCII and EBCDIC differ in
  1.    None of these
  2.    the random and sequential access method
  3.    their efficiency in storing data
  4.    the number of bytes used to store characters
  5.    their collecting sequences
 Discuss Question
Answer: Option E. -> their collecting sequences
Question 9. In which code the successive code characters differ in only one bit position?
  1.    algebraic code
  2.    None of these
  3.    8421 code
  4.    excess 3 code
  5.    gray code
 Discuss Question
Answer: Option E. -> gray code
Question 10. Conversion of binary number 1011012 to hexadecimal is
  1.    None of these
  2.    3716
  3.    20000000000000000
  4.    2716
  5.    2D16
 Discuss Question
Answer: Option E. -> 2D16

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