Logic Circuits IV - SS2 ICT Past Questions and Answers - page 1
1
What is the primary function of logic gates in digital circuits?
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A
Generating random outputs
B
Processing analog signals
C
Performing mathematical calculations
D
Processing binary information
2
Which logic gate can be used to construct all other logic gates?
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A
AND gate
B
OR gate
C
NAND gate
D
XOR gate
3
Which logic gate acts as an OR gate followed by a NOT gate?
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A
XOR gate
B
NOR gate
C
XNOR gate
D
NAND gate
4
What is the purpose of a multiplexer (mux) in digital systems?
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A
Perform addition operations
B
Store binary information
C
Select and route signals
D
Filter noise
5
In a Schmitt trigger gate, what feature distinguishes it from basic gates?
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A
Universal functionality
B
Hysteresis
C
Exclusive OR operation
D
Bipolar voltage supply
6
Which logic gate is used for error detection and correction?
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A
AND gate
B
XOR gate
C
OR gate
D
XNOR gate
7
What is the output of an XOR gate if both inputs are the same?
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A
0
B
1
C
 Undefined
D
It depends on the gate's configuration
8
Which logic gate is used for data comparison and selection?
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A
NAND gate
B
OR gate
C
XOR gate
D
Mux (multiplexer)
9
Which gate is considered universal because it can be used to create any other gate?
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A
NOR gate
B
XOR gate
C
AND gate
D
NOT gate
10
What does a buffer gate do in a digital circuit?
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A
Processes analog signals
B
Performs logical operations
C
Filters noise
D
Passes input to output
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