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WorksheetsDigital Electronics-Final
Total questions: 15
Worksheet time: 10mins
Which are UNIVERSAL GATES?
AND gate and OR gate
NAND gate and NOR gate
XOR gate and XNOR gate
NOT gate
Which of the following statements is TRUE for an OR Gate:
A '1' at any of the inputs causes the output to be '1'
A '1' at any of the inputs causes the output to be '0'
A '0' at any of the inputs causes the output to be '0'
A '0' at any of the inputs causes the output to be '1'
Which is the correct order of sequence for representing inputs in K-map
(00,01,10,11)
(00,01,11,10)
(00,10,11,01)
(00,11,01,10)
For staircase wiring (one lamp controlled by two switches), which logic function can be used to realize the application?
AND Gate
OR Gate
XOR Gate
NOR Gate
The output of this combinational circuit is:
A+B+C
A(B+C)
B(C+A)
C(A+B)
In the figure shown, the output ܻ is required to be ܻ Y=AB+ C'D'. The gates G1 and G2 must be, respectively:
NOR, OR
NAND, OR
AND, NAND
NAND, NOR
The Boolean expression (X+Y) (X+Y')+(XY')'+(X')'simplifies to:
X
XY
X+Y
Y
The Boolean expression for the truth table shown (D is the output) is :
B(A+C) (A` +C`)
B(A+C`)(A`+C)
A subtractor subtracts the subtrahend from the minuend
True
False
A priority encoder is a sequential circuit
True
False
How many select lines does a 16:1 MUX require?
4
3
8
2
Can a decoder be used as a DMUX
Yes
No
In active low logic, logic 0 is considered as logic 1
True
False
Which flip flop is used for designing counters?
T Flip Flop
D Flip Flop
T Latch
D Latch
Which MATH function does an XOR gate perform
Addition
Multiplication
