Boolean Algebra and Digital Circuits Quiz

Who invented Boolean Algebra?

• Claude Shannon

• John von Neumann

• Alan Turing

• George Boole

What is the complement of a variable B when B = 0?

• B

• B'

• 0

• 1

Which law states that changing the sequence of variables does not affect the output?

• Associative law

• Commutative law

• Inversion law

• Distributive law

What is the maximum number of cells in a 4-variable K-map?

• 4

• 32

• 8

• 16

In the Sum of Products (SOP) form, what does 0 represent?

• A constant

• An unbar

• A bar

• A variable

What type of circuit does a flip flop represent?

• Digital circuit

• Analog circuit

• Sequential circuit

• Combinational circuit

What is the primary function of a multiplexer?

• To perform arithmetic operations

• To store data

• To select one of many inputs

• To decode binary numbers

What is the output of a 2 to 4 line decoder when both inputs are 0?

• D0 = 1, D1 = 0, D2 = 0, D3 = 0

• D0 = 0, D1 = 1, D2 = 0, D3 = 0

• D0 = 0, D1 = 0, D2 = 1, D3 = 0

• D0 = 0, D1 = 0, D2 = 0, D3 = 1

What is the main characteristic of a ripple counter?

• All outputs change simultaneously

• It counts in a binary sequence

• It has no memory elements

• It requires a clock signal

In a D Flip Flop, what happens when the enable input (E) is 0?

• The output changes

• The latch is disabled

• The output toggles

• The input is ignored