ECAT Pre Computer Science MCQ Test For Computer Chapter 5 With Answer

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

In Boolean algebra A.A.A.A.A

• 5A A
• A B
• A⁵ C
• 1 D

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

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

• x A
• y B
• 1+x C
• 1+y 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 aborption law x+x.y=

• x A
• y B
• 1 + x C
• 1 + y D

The output will be one in case any input is one in the case of.

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

• 0 A
• 1 B
• x C
• 
  D

The heart of analog to digital converter (ADC) is

• comparator A
• pulse generator B
• voltage source C
• current source 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

Logical multiplication refers to operation of.

• OR gate A
• AND gate B
• NOT gate C
• inverter gater D

• x + y A
• 
  B
• 
  C
• 
  D

The circuit that is used for parallel to serial conversion is

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

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

• A A
• n A B
• 0 C
• 1 D

Logical addition refers to operation of

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