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MCQs

Total Questions : 275 | Page 3 of 28 pages
Question 21. A real number consists of
  1.    Integer part
  2.    Integer part and fraction part
  3.    Integer part, fraction part along with positive or negative sign
  4.    None of the above
 Discuss Question
Answer: Option C. -> Integer part, fraction part along with positive or negative sign
Question 22. Using DeMorgan’s Theorem we can convert any AND-OR structure into
  1.    NAND-NAND
  2.    OR-NAND
  3.    NAND-NOR
  4.    NOR-NAND
 Discuss Question
Answer: Option A. -> NAND-NAND
Question 23. If the sign bit of mantissa is 0 and the exponent is increased from a positive to a more negative number the result is
  1.    A larger floating point number
  2.    A smaller floating point number
  3.    Either A or B depending on the actual number
  4.    A negative floating point number
 Discuss Question
Answer: Option A. -> A larger floating point number
Question 24. The operating modes of 8255 A are called
  1.    Mode 0 and mode 1
  2.    Mode 0, mode 1 and mode 2
  3.    Mode 0 and mode 2
  4.    Mode 0, mode 2 and mode 3
 Discuss Question
Answer: Option B. -> Mode 0, mode 1 and mode 2
Question 25. In C the keywords are also called
  1.    Special words
  2.    Reserved words
  3.    Class words
  4.    Character words
 Discuss Question
Answer: Option B. -> Reserved words
Question 26. The forms of IF statements in FORTRAN 77 are called
  1.    Logical IF and Block IF
  2.    Logical IF, block IF and arithmetic IF
  3.    Logic IF, block IF, arithmetic IF and negate IF
  4.    Logical IF and arithmetic IF
 Discuss Question
Answer: Option B. -> Logical IF, block IF and arithmetic IF
Question 27. Which of the following conditions is not allowed in an RS latch?
  1.    R is asserted, S is asserted
  2.    R is asserted, S is negated
  3.    R is negated, S is asserted
  4.    R is negated, S is negated
 Discuss Question
Answer: Option A. -> R is asserted, S is asserted
Question 28. If m is a power of 2, the number of select lines required for an m-input mux is:
  1.    m
  2.    2^m
  3.    log2 (m)
  4.    2*m
 Discuss Question
Answer: Option C. -> log2 (m)
Question 29. The timing difference between a slow memory and fast processor can be resolved if
  1.    Processor is capable of waiting
  2.    External buffer is used
  3.    Either A or B
  4.    Neither A nor B
 Discuss Question
Answer: Option C. -> Either A or B
Question 30. Which memory has read operation, byte erase, byte write and chip erase?
  1.    RAM
  2.    UVEPROM
  3.    EEPROM
  4.    Both B and C
 Discuss Question
Answer: Option C. -> EEPROM

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