WorksheetsChapter 4: Logic Gates and Boolean Functions
Total questions: 50
Worksheet time: 37mins
What is the primary function of a logic gate?
To store data
To perform a specific logical operation
To convert between number systems
To minimize Boolean functions
Which of the following is NOT a basic logic gate?
NANDOR
OR
AND
XOR
What is the output of a NOT gate when the input is 1?
0
1
Undefined
High
In Boolean algebra, what does the operator '+' represent?
AND operation
XOR operation
OR operation
NOT operation
What is the truth table output for an AND gate with inputs 1 and 1?
1
0
Undefined
High
Which law states that A + 1 = 1?
Commutative Law
Idempotent Law
Distributive Law
Law of Union
What is the output of a 3-input AND gate when any input is 0?
High
1
0
Undefined
Which theorem states that (A + B) • (A + C) = A + BC?
DeMorgan's Theorem
Distributive Theorem
Absorption Theorem
Involution Theorem
What is the output of an OR gate with inputs 0 and 0?
0
High
1
Undefined
Which of the following is a characteristic of a truth table?
It shows the physical layout of a circuit
It lists all permutations of inputs and their corresponding outputs
It is used to design sequential circuits
It only applies to AND gates
What does the XOR gate output when both inputs are the same?
Undefined
1
High
0
Which Boolean operator is represented by the symbol '•'?
XOR
AND
OR
NOT
What is the result of the operation A • A?
Undefined
1
0
A
In a truth table, how many outputs are there for a 2-input gate?
8
2
1
4
What is the output of a NAND gate when both inputs are 1?
High
Undefined
1
0
Which theorem states that (A + B) • (A + C) = A + BC?
DeMorgan's Theorem
Distributive Theorem
Absorption Theorem
Involution Theorem
What does the XOR gate output when both inputs are the same?
Undefined
1
High
0
What is the result of the operation A • A?
Undefined
1
0
A
What will the circuit's output be?
1
0
List the pulse train at the output of this logic gate
a = 1,b = 0,c = 0,d = 1,e = 0,f = 0,g = 1
a = 0,b = 1,c = 1,d = 0,e = 0,f = 1,g = 1
a = 1,b = 0,c = 0,d = 1,e = 1,f = 0,g = 0
a = 0,b = 0,c = 0,d = 1,e = 1,f = 0,g = 1
What is the output Y of this logic cricuit if A = 1, B = 1, and C = 1
0
1
What is the output Z of this logic cricuit if A = 1 and B = 1
0
1
What kind of gate does this Truth Table represent?
NOR
NOT
OR
NAND
What kind of gate does this Truth Table represent?
NAND
AND
NOR
OR
Which of the following is a binary code?
10010110
a + b = c;
E = mc2
int a = 5;
In computing 1's and 0's often also means _________.
10
2
True and False
None of the above
What are the three boolean operations in Boolean Algebra?
NOT, AND and XOR
NOT, AND and OR
ADDITION, SUBTRACTION AND MULTIPLICATION
X, Y AND Z
Which is the truth table for the AND gate?
Diagram shows a logic gate.
Which of the following will function similar to the logic gate?
Define logic gate
combinational circuit that converts mechanical signal to electrical signal
electronic circuit that operate with one or more inputs to get one output
a circuit that change code into signals
electronic circuit that multiply amplitudes of two input signals
XNOR GATE.
What is the output Y of this logic cricuit if A = 1, B = 1, and C = 1
0
1
Which logic gate is represented by this truth table?
Two transistors in series is a:
Not Gate
AND Gate
OR Gate
NAND Gate
Which gate is represented by this boolean expression
NAND
NOT
NOR
NXOR
A+A=
A
1
0
2A
A + 1 =
1
0
A
A
A + A =
A
A
1
0
(1 + A + A) =
A
~A
1
0
Dirty dishes
A + (B * A) =
A
~A
B
1
Your mama
is the same as
is the same as
A + B + C
Which of these are logic gates?
AND
OR
NOT
IF
ELSE
What is the output Z of this logic cricuit if A = 1 and B = 1
0
1
_ _
A . B
is the same as
A + B
A . B
Which law is this an example of:
A(B+C) = (A.B)+(A.C)
A+(B.C) = (A+B).(A+C)
Associative
Commutative
Absorption
Distributive
Choose 2 forms of Boolean expression
SOP and POS
Combination and multiples
AND and OR gate
Input of A and B
Select the true function of Karnaugh Map (K-Map):
i. Solve difficult expression
ii. Simplified Boolean expression
iii. Develop truth table of combinational circuit
iv. Differentiate SOP and POS
i, ii, iii, iv
i, ii, iii
i, ii, iv
ii, iii, iv
