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WorksheetsBooleanAlgebraBasics
Total questions: 99
Worksheet time: 55mins
The output of an exclusive-NOR gate is 1,Which input combination is correct?
A = 1 B = 0
A = 0 B = 1
A = 0 B = 0
none of the above
If 3-input OR gate has 8 input possibilities how many possibilities will result in HIGH output?
1
7
2
8
OR gate with schematic "bubbles" on its inputs performs the same functions as___gate.
NOT
EX-OR
NAND
NOR
How many input and output required for multiplexer ?
Many input and one output
One input and many output
One input and one output
None of the above
What is the boolean expression for this logic circuit?
Q = NOT (A OR B)
Q = NOT A AND B
NOT A OR B = Q
Q = (NOT A) OR B
What is the boolean expression for this logic circuit?
A OR B AND C = Q
Q = (A AND B) OR C
Q = A OR (B AND C)
Q = (A OR B) AND C
In this logic circuit, what is the output Q if the inputs A and C are 1?
0
We can't say
1
Which logic gate is this?
AND
OR
NOT
Which is the truth table for the AND gate?
Which logic gate take the input and negates it, turning 0 to 1 and 1 to 0?
AND
OR
NOT
The AND and OR gate both take two inputs, while the NOT gate takes just one. True or False?
True
False
The NOT gate takes only one input (it is a unary operator). True or False?
True
False
This is the truth table for which logic gate?
AND
OR
NOT
Which logic gate matches this truth table?
Which logic gate is this?
AND
OR
NOT
Which of these are boolean operators, implemented in the computer as logic gates?
Check all that apply
NOT
MOD
OR
AND
DIV
This is the truth table for which logic gate?
Which of these are boolean operators, implemented in the computer as logic gates?
Check all that apply
NOT
MOD
OR
AND
DIV
A + 0 =
A
1
0
My little pony
~A
A + 1 =
1
0
A
A pair of smelly sneakers
~A
~A + ~A =
A
~A
1
0
Tinkerbell
~ (~A) =
A
~A
1
0
Ugly muffins
is the same as
Which of these are logic gates?
AND
OR
NOT
IF
ELSE
Which logic gate does this symbol represent?
AND
OR
NOT
IF
ELSE
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
Which property: A+B = B+A or A * B = B*A
Associative
Distributive
Commutative
Bermuda Triangle
Who wrote this law: ~ (A + B) = ~A * ~B
Boole
Euler
DeMorgan
Wolfertz
Which gate does this symbol represent?
AND
NOT
OR
NAND
Which gate does this symbol represent?
NOT
AND
OR
NOR
Evaluate: 2 < 3 And ( Not 3 > 2)
True
False
A . B
is the same as
A + B
A . B
What is the output?
True
False
What is the output?
0
1
2
ERROR
What is the output?
0
1
2
ERROR
a. 0
b. 1
c. 2
d. infinite
Which of the following gate types below is NOT considered a universal gate?
a. XOR
b. NAND
c. NOR
d. None of the above
A.
B.
C.
D.
a. NAND
b. NOR
c. AND
d. OR
3) The boolean expression of an OR gate is _______
a) A.B
b) A’B+AB’
c) A+B
d) A’B’
4) Which of the following gate will give a 0 when both of its inputs are 1?
a) AND
b) OR
c) NAND
d) EXOR
Which Logic Gate is represented by the symbol given in the image?
a. OR
b. XNOR
c. NOR
d. XOR
A.
B.
C.
D.
2) A __________ gate gives the output as 1 only if all the inputs signals are 1.
a) AND
b) OR
c) EXOR
d) NOR
The Boolean expression Y = (AB)’ is logically equivalent to what single gate?
NAND
NOR
AND
OR
NOR function is dual of
AND function
OR function
XOR function
NAND function
5) The Boolean expression for a 3-input AND gate is ________.
A )X = AB
B) X = ABC
C) X = A + B + C
D) X = AB + C
6) Which among the below stated boolean expressions do not obey De-Morgan's theorem ?
a) X+Y = X . Y
b) X.Y = X + Y
c) X.Y = X.Y
d) None of the above
7. The number of min terms for an expression comprising of 3 variables?
a) 8
b) 3
c) 0
d) 1
The NOR gate output will be high if the two inputs are __________
00
01
10
11
……….. input values will cause an AND logic gate to produce a HIGH output.
At least one input is HIGH
At least one input is LOW
All inputs are HIGH
All inputs are LOW
Which of these are logic gates?
AND
OR
NOT
IF
ELSE
What is the output of an AND gate if its inputs are 1 and 1?
1
0
What is the output of an AND gate if its inputs are 1 and 0?
1
0
What is the output of an OR gate if its inputs are 0 and 1?
1
0
Which logic gate does this symbol represent?
AND
OR
NOT
IF
ELSE
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 is the output Y of this logic cricuit if A = 1, B = 1, and C = 1
0
1
X
X
X
X . X
X
is the same as
A . B
is the same as
A + B
A . B
is the same as
is the same as
A + B + C
is the same as
A + B + C
A . B
A + B
A . B
How many different combinations of 1 and 0 are possible with 3 bits?
2
4
6
8
A NAND gate is called a universal logic element because
All digital computers use NAND gates
All the minimisation techniques are applicable for optimum NAND gate realisation
Everybody use this gate
Any logic function can be realized by NAND gates alone
If a input signal a=11100 is applicable to a NOT gate ,its output signal is
00011
01001
00011
1000
In Boolean algebra A.A.A.A is equal to
1
A4
4A
A
In Boolean algebra AND is represented by
/
-
×
+
Boolean algebra can be used to
simplify any algebraic expression
Minimize number of switches in a circuit
Solve the mathematical problem
perform arithmetic calculation
NAND gate means
Inversion followed by AND gates
AND gates followed by an inverter
AND gate followed by an OR Gate
None
In Boolean Algebra A + 1 =?
0
1
A
None
According to the associative law of addition,
A + B = B + A
A = A + A
(A + B) + C = A + (B + C )
A + 0 = A
Associative Law states that
X + (Y+Z)= (X+Y ) + Z
X.(YZ) =(XY).Z
X + Y = Y +X
XYZ.XYZ = XYZ
Which property: A+B = B+A or A * B = B*A
Associative
Distributive
Commutative
Bermuda Triangle
A + 0 =
A
1
0
My little pony
~A
A + 1 =
1
0
A
A pair of smelly sneakers
~A
A + ~A =
A
1
0
A purple rock
A + A =
0
A
1
A poisonous dart frog
(1 + A + A) =
A
~A
1
0
Dirty dishes
(1 + A + B) =
A
~A
B
~B
1
A * 0 =
A
~A
1
0
LA Dodgers
~A + 1 =
A
~A
1
0
Silly string
A * (B + C) = A* B + A * C
Commutative Property
Associative Property
Distributive Property
No one's property
Which of the following is a binary code?
10010110
a + b = c;
E = mc2
int a = 5;
