Logic gates

QuizÂ by Lim

Feel free to use or edit a copy

includes Teacher and Student dashboards

### Measure skillsfrom any curriculum

Tag the questions with any skills you have. Your dashboard will track each student's mastery of each skill.

• edit the questions
• save a copy for later
• start a class game
• automatically assign follow-up activities based on studentsâ€™ scores
• assign as homework
• share a link with colleagues
• print as a bubble sheet

### Our brand new solo games combine with your quiz, on the same screen

Correct quiz answers unlock more play!

14 questions
• Q1
What does an EX-OR gate do?
Give a low output when only one of its inputs are high.
Give a low output when one or more of its inputs are high.
Give a high output when one or more of its inputs are high.
Give a high output when only one of its inputs are high.
45s
• Q2
What does connecting together the inputs of NAND and NOR gates do?
Produce and EXNOR gate.
Damage the gate.
Produce a NOT gate.
Help produce multi-input gates.
45s
• Q3
How do you make a NAND gate out of an AND gate using inverters (NOT gates)?
Invert the output from the AND gate.
Invert one of the inputs to the AND gate.
Invert both the inputs to the AND gate.
Invert both the inputs and output of the AND gate.
60s
• Q4
How do you make a NOR gate out of an NAND gate using inverters (NOT gates)?
Invert the output from the NAND gate.
Invert both the inputs and output of the NAND gate.
Invert both the inputs to the NAND gate.
Invert one of the inputs to the NAND gate.
45s
• Q5
Identify the logic gate symbol shown.
NAND gate
NOR gate
AND gate
OR gate
30s
• Q6
What type of logic gate does this symbol represent?
Exclusive NOR
NOR
Exclusive OR
OR
30s
• Q7
The output of an AND gate with three inputs, A, B, and C, is HIGH when ________.
A = 1, B = 0, C = 1
A = 1, B = 1, C=1
A = 1, B = 1, C = 0
A = 0, B = 0, C = 0
45s
• Q8
How many input combinations would a truth table have for a six-input AND gate?
32
16
64
48
60s
• Q9
How many inputs of a four-input AND gate must be HIGH in order for the output of the logic gate to go HIGH?
All four inputs.
Any two of the inputs.
Any three of the inputs
Any one of the inputs.
60s
• Q10
The format used to present the logic output for the various combinations of logic inputs to a gate is called a(n):
Boolean variable
Input logic function
Truth table
Boolean constant
60s
• Q11
The output of an OR gate with three inputs, A, B, and C, is LOW when ___
A = 0, B = 0, C = 0
A = 0, B = 0, C = 1
A = 0, B = 1, C = 1
60s
• Q12
The basic logic gate whose output is the complement of the input is the:
AND gate
inverter
OR gate
Comparator
60s
• Q13
The Boolean expression for a 3-input OR gate is ________.
X = A . B . C
X = A . B + C
X = A + B
X = A + B + C
30s
• Q14
If a 3-input NAND gate has eight input possibilities, how many of those possibilities will result in a HIGH output?
7
1
8
4
60s

Teachers give this quiz to your class