1.Which of the following statement is FALSE about logic gates?

A.Logic gates are the building blocks of electronic circuits.

B.It is used in computer components like memory.

C.A combination of logic gates is called logic circuit.

D.A logic gate understands binary language.

2.What is a truth table?

A.A table that denotes the different outputs of the logic gates or circuit with respect to different inputs.

B.A table that represents how logic gates are combined to form a logic circuit.

C.A table that shows the input combinations that result in a binary output 1 in a logic gate.

5.Which of the following is FALSE about the NOT gate?

C.A NOT gate has two input signals and an output signal.

A.Output of NOT is complementary to the input

B.When the input to NOT gate is 0, the output is 1.

6.When is the output for AND gate TRUE?

B.When at least one of the inputs is TRUE.

D.When at least one of the inputs is FALSE.

7.When is the output for OR gate TRUE?

B.When at least one of the inputs is TRUE.

D.When at least one of the inputs is FALSE.

11.What is a logic circuit?

A.Combination of logic gates that performs a specific function.

B.Combination of logic gates that understands both binary and decimal number systems.

C.Combination of logic gates that understands decimal number system.

20.Which of the following is the correct logical expression for sum of a 2-bit binary adder?

B.Sum S = ((NOT A) AND B) OR (A AND (NOT B))

A.Sum S = (A AND B) OR ((NOT A) AND (NOT B))

C.Sum S = ((NOT A) OR B) AND (A OR (NOT B)).

Which of the following logic statement holds good for this truth table?

A.X= (A AND B) OR ((NOT A) AND (NOT B))

B.X= (A OR B) AND ((NOT A) OR (NOT B))

C.X= (A AND B) OR (NOT (A AND B))

Which of the following logic statement holds good for this truth table?

D.X= (A^B^¬C) ˅ (A^¬B^C) ˅ (¬A^B^C)

B.X= (A^B^¬C) ˅ (A^¬B^C) ˅ (¬A^¬B^C)

C.X= (A^B^C) ˅ (A^B^C) ˅ (A^B^C)

1.4.3. Boolean Algebra

Authored by Richard Smith

Computers

12th Grade

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MULTIPLE CHOICE QUESTION

1 min • 1 pt

Simplify the following Boolean expression: ¬B∧¬A∨¬B

¬B∧¬A

¬A∧¬B

¬B∨¬A

¬A∨¬B

¬B

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What Boolean operation is represented with ¬?

NOT

AND

XOR

NOR

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What Boolean operation is represented with ∧?

AND

XOR

NOT

NOR

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What Boolean operation is represented with ∨?

XOR

NOT

NOR

AND

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What Boolean operation is represented with ⊕?

XOR

NOT

AND

NOR

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which has the highest order of precedence: AND, OR or NOT?

NOT

AND

XOR

NOR

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Complete the Boolean identity: C ∧ C =

C V C

¬C

¬C V C

¬C ∧ ¬C

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1.4.3. Boolean Algebra

Simplify the following Boolean expression: ¬B∧¬A∨¬B

What Boolean operation is represented with ¬?

What Boolean operation is represented with ∧?

What Boolean operation is represented with ∨?

What Boolean operation is represented with ⊕?

Which has the highest order of precedence: AND, OR or NOT?

Complete the Boolean identity: C ∧ C =

Simplify the following Boolean expression: (C ∨ (B ∨ ¬B)) ∧ D

Complete the Boolean identity: B ∧ 1 =

Apply one of De Morgan’s Laws to the following Boolean expression: ¬A ∧ ¬B

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