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

• 0 A
• 1 B
• x C
• 
  D

Which of the following operations are used by Boolean algebra.?

• Boolean addition A
• Boolean multiplication B
• Boolean complementation C
• All of the above D

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

NAND gates are preferred over others because these.

• have lower fabrication area A
• can be used to make any gate B
• consume least elctronic power C
• provide maximum density in a chip D

The logic device that perform Boolean multiplication is.

• AND gate A
• OR gate B
• Inverter C
• None of these 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

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

• x + y A
• 
  B
• 
  C
• 
  D

Boolean algebra is.

• used for arithmetical operation is ALU A
• an aid for binary conversion B
• useful for error detection and error correction C
• used to describe the behavior and structure of logic networks and as an aid in the design of logic system 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

According to Boolean algebra x + 1 = ______________

• 0 A
• 1 B
• x C
• 
  D

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

• A A
• n A B
• 0 C
• 1 D

Odd parity of a word can be conveniently tested by.

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

Pick up wrong logical expression

• 
  A
• 
  B
• 
  C
• 
  D