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