Boolean expression for NOR gate with two inputs x and y can be written as.

• x + y__ A
• x. y B
• x + y C
• 
  D

• 0 A
• 1 B
• x C
• 
  D

According to Boolean algebra A+A+......+A is

• A A
• n A B
• 0 C
• 1 D

If A and B are two 1-bit numbers, what logic gates will be required to test for A=B?

• NOR gate A
• EXCLUSIVE OR gate B
• EXCLUSIVE NOT gate C
• OR gate D

• A + B + C + D A
• 
  B
• A BC D C
• A + B + C + D D

The 'Boolean Algebra' is based on the premise that

• there are two states A
• differential equations can be solved by analog circuits. B
• either a statement is true or false C
• arithmetic operations can be carried out D

Boolean algebra is also known as.

• logical algebra A
• control algebra B
• switching algebra C
• programming algebra D

Logical addition refers to operation of

• OR gate A
• AND gate B
• NOT gate C
• invertr gate D

Which of the following statement is true in the case of AND gate with input A and B.

• If A and B are applied, there will not be any output A
• If neither input is applied, there will be an output B
• If one input is applied there will not be any output C
• If one input is applied there will be an output D

• x . y A
• x + y B
• x . y C
• x . y D

According to Idempotent law , x + y = __________

• 1 A
• 0 B
• x C
• x . x D

The circuit that is used for parallel to serial conversion is

• decoder A
• encoder B
• multiplexer C
• demultiplexer D

Odd parity of a word can be conveniently tested by.

• OR gate A
• XOR gate B
• NOR gate C
• NAND gate D

According to absorption law x. (x+y) =

• x A
• y B
• 1+x C
• 1+y D

An OR gate has 6 input. The number of input words in its truth table are.

• 6 A
• 32 B
• 64 C
• 128 D