Logic Circuits - SS2 ICT Past Questions and Answers - page 1
1
What is a logic gate?
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A
An electronic device for analog signal processing
B
A building block for digital electronic circuits
C
A sensor for measuring temperature
D
A component used in mechanical systems
2
Which logic gate produces an output of 1 only when all input signals are 1?
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A
AND gate
B
OR gate
C
NOT gate
D
XOR gate
3
In a NOT gate, what is the output when the input is 0?
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A
0
B
1
C
-1
D
Depends on other inputs
4
The XOR gate produces an output of 1 when the number of input signals that are 1 is:
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A
Even
B
Odd
C
Prime
D
Always 1
5
Which logic gate acts as an OR gate followed by a NOT gate?
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A
AND gate
B
NOR gate
C
XOR gate
D
NAND gate
6
What is the output of a NAND gate if one of its inputs is 0?
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A
0
B
1
C
Cannot determine
D
Depends on other inputs
7
Which logic gate's output is the opposite of the OR gate's output?
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A
XOR gate
B
XNOR gate
C
NAND gate
D
NOR gate
8
A NOT gate is also known as:
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A
Inverter
B
Repeater
C
Switch
D
Flip-flop
9
How does an XNOR gate behave in terms of input signals?
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A
Produces 1 for even number of input 1s
B
Produces 1 for odd number of input 1s
C
Always produces 1
D
Always produces 0
10
Which type of gate is used to add binary numbers in digital circuits?
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A
AND gate
B
OR gate
C
XOR gate
D
Adder gate
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