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MCQs

Total Questions : 457 | Page 2 of 46 pages
Question 11. The _____ gate has two or more input signals. All inputs must be high to get a high output
  1.    OR
  2.    NAND
  3.    AND
  4.    NOR
  5.    None of the above
 Discuss Question
Answer: Option C. -> AND
Question 12. Conversion of an octal number 1428 to binary number is
  1.    11000102
  2.    1101102
  3.    11000112
  4.    11011012
  5.    None of the above
 Discuss Question
Answer: Option A. -> 11000102
Question 13. Conversion of hexadecimal number 93FA16 to it's binary number equivalent is
  1.    10010011111110102
  2.    100100111111101112
  3.    1100111111100112
  4.    1111100001112
  5.    None of the above
 Discuss Question
Answer: Option A. -> 10010011111110102
Question 14. BCD numbers are useful whenever _____ information is transferred into or out of a digital system.
  1.    decimal
  2.    binary
  3.    ASCII
  4.    hexadecimal
  5.    None of the above
 Discuss Question
Answer: Option A. -> decimal
Question 15. A NOR gate recognizes only the input word whose bits are _____
  1.    0's and 1's
  2.    1's
  3.    0's
  4.    0's or 1's
  5.    None of the above
 Discuss Question
Answer: Option C. -> 0's
Question 16. How many bytes are there in 1011 1001 0110 1110 numbers?
  1.    1
  2.    2
  3.    4
  4.    8
  5.    None of the above
 Discuss Question
Answer: Option B. -> 2
Question 17. Consider as RS flip-flops with both inputs set to 0. If a momentary '1' is applied at the input S, then the output
  1.    Q will flip from 0 to 1
  2.    Q will flip from 0 to 1 and then back to 0
  3.    Q will flip from 0 to 1
  4.    Q will flip from 0 to 1 and then back to 0
  5.    None of the above
 Discuss Question
Answer: Option C. -> Q will flip from 0 to 1
Question 18. Which of the following logic expression is wrong?
  1.    1 + 0=1
  2.    1 + 1=0
  3.    1+0+1 = 1
  4.    1 + 1 + 1 = 1
  5.    None of the above
 Discuss Question
Answer: Option C. -> 1+0+1 = 1
Question 19. Subtraction of 1001011002 from 11101010102 is
  1.    10010111102
  2.    01101000012
  3.    11110000012
  4.    11110111112
  5.    None of the above
 Discuss Question
Answer: Option A. -> 10010111102
Question 20. Addition of 1101012 and 1011112 is
  1.    11001002
  2.    11010002
  3.    11101112
  4.    1100112
  5.    None of the above
 Discuss Question
Answer: Option A. -> 11001002

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