Logic Gates

Q1: The basic logic gate whose output is the complement of the input is the:

A
OR gate

B
AND gate

C
INVERTER gate

D
comparator

Q2: How many truth table entries are necessary for a four-input circuit?

A
4

B
8

C
12

D
16

Q3: What input values will cause an AND logic gate to produce a HIGH output?

A
At least one input is HIGH.

B
At least one input is LOW.

C
All inputs are HIGH.

D
All inputs are LOW.

Q4: How many NAND circuits are contained in a 7400 NAND IC?

A
1

B
2

C
4

D
8

Q5: The logic gate that will have HIGH or "1" at its output when any one of its inputs is HIGH is a(n):

A
OR gate

B
AND gate

C
NOR gate

D
NOT gate

Q6: A NAND gate has:

A
LOW inputs and a LOW output

B
HIGH inputs and a HIGH output

C
LOW inputs and a HIGH output

D
None of the these

Q7: A single transistor can be used to build which of the following digital logic gates?

A
AND gates

B
OR gates

C
NOT gates

D
NAND gates

Q8: If a signal passing through a gate is inhibited by sending a low into one of the inputs, and the output is HIGH, the gate is a(n):

A
AND

B
NAND

C
NOR

D
OR

Q9: The output will be a LOW for any case when one or more inputs are zero in a(n):

A
OR gate

B
NOT gate

C
AND gate

D
NAND gate

Q10: Exclusive-OR (XOR) logic gates can be constructed from what other logic gates?

A
OR gates only

B
AND gates and NOT gates

C
AND gates, OR gates, and NOT gates

D
OR gates and NOT gates


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