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MCQs

Total Questions : 275 | Page 8 of 28 pages
Question 71. Using DeMorgan’s Theorem we can convert any AND-OR structure into
  1.    OR-NAND
  2.    NAND-NAND
  3.    NAND-NOR
  4.    NOR-NAND
 Discuss Question
Answer: Option B. -> NAND-NAND
Question 72. 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 73. A real number consists of
  1.    Integer part
  2.    Integer part, fraction part along with positive or negative sign
  3.    None of these
  4.    Integer part and fraction part
 Discuss Question
Answer: Option B. -> Integer part, fraction part along with positive or negative sign
Question 74. 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.    Either A or B depending on the actual number
  2.    A smaller floating point number
  3.    A negative floating point number
  4.    A larger floating point number
 Discuss Question
Answer: Option D. -> A larger floating point number
Question 75. The forms of IF statements in FORTRAN 77 are called
  1.    Logical IF, block IF and arithmetic IF
  2.    Logical IF and arithmetic IF
  3.    Logic IF, block IF, arithmetic IF and negate IF
  4.    Logical IF and Block IF
 Discuss Question
Answer: Option A. -> Logical IF, block IF and arithmetic IF
Question 76. Which of the following conditions is not allowed in an RS latch?
  1.    R is negated, S is asserted
  2.    R is asserted, S is asserted
  3.    R is asserted, S is negated
  4.    R is negated, S is negated
 Discuss Question
Answer: Option B. -> R is asserted, S is asserted
Question 77. Which memory has read operation, byte erase, byte write and chip erase?
  1.    EEPROM
  2.    Both B and C
  3.    RAM
  4.    UVEPROM
 Discuss Question
Answer: Option A. -> EEPROM
Question 78. 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.    2^m
  4.    log2 (m)
 Discuss Question
Answer: Option D. -> log2 (m)
Question 79. The timing difference between a slow memory and fast processor can be resolved if
  1.    Either A or B
  2.    External buffer is used
  3.    Neither A nor B
  4.    Processor is capable of waiting
 Discuss Question
Answer: Option A. -> Either A or B
Question 80. The character set of Fortran 77 includes lower case alphabets a to z.
  1.    False
  2.    True
 Discuss Question
Answer: Option A. -> False

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