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

In Boolean algebra A.0 is

• 0 A
• 1 B
• A+0 C
• A+1 D

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

• A A
• n A B
• 0 C
• 1 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

According to Boolean algebra x + 1 = ______________

• 0 A
• 1 B
• x C
• 
  D

The number of inputs to full adder are

• 1 A
• 2 B
• 3 C
• 4 D

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

Logical multiplication refers to operation of.

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

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

An AND gate will function as OR if.

• all the inputs to the gates are "I" A
• all the inputs are "O" B
• a Not gate is added to it C
• all the inputs and outputs are complemented D

Which of the following gate is two level logic gate.

• OR gate A
• AND gate B
• EXCLUSIVE OR gate C
• NAND gate D

Which of the following function is referred as the complementary.?

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

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

• x A
• y B
• 1+x C
• 1+y D

Logical addition refers to operation of

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

• 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