DLD |Gate-2012| Previous Year Questions| Set-9

Set-15 GATE-2006 DLD

DLD |Gate-2012| Digital Logic Design

  1. The truth table
XYf(X,Y)
000
010
101
111

represents the Boolean function : [GATE – 2012]

a. X
b. X + Y
c. X ⊕ Y
d. Y

Answer : a)


  1. The decimal value 0.5 in IEEE single precision floating point representation has : [GATE – 2012]

a. fraction bits of 000…000 and exponent value of 0
b. fraction bits of 000…000 and exponent value of −1
c. fraction bits of 100…000 and exponent value of 0
d. no exact representation

Answer : b)


  1. The amount of ROM needed to implement a 4 bit multiplier is : [GATE – 2012]

a. 64 bits
b. 128 bits
c. 1 Kbits
d. 2 Kbits

Answer : d)


  1. What is the minimal form of the karnaugh map shown below? Assume that X denotes a don’t care term  : [GATE – 2012]

a. b’d’
b. b’d’ + b’c’
c. b’d’ + ab’c’d
d. b’d’ + b’c’ + c’d’

Answer : b)
DLD |Gate-2012|


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