ECAT Pre Computer Science Chapter 5 MCQ Test With Answer for Computer Science chapter 5 (Boolean Algebra)

The number of inputs to full adder are

• 1 A
• 2 B
• 3 C
• 4 D

Pick up wrong logical expression

• 
  A
• 
  B
• 
  C
• 
  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

The circuit that is used for parallel to serial conversion is

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

The heart of analog to digital converter (ADC) is

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

• 0 A
• 1 B
• x C
• 
  D

Boolean algebra use which of the following to represent arithmetic quantities.

• decimal digits A
• exponents B
• binary bits C
• fractions 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

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

According to aborption law x+x.y=

• x A
• y B
• 1 + x C
• 1 + y D

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

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

Boolean description for the exclusive OR gate for two inputs x and y can be written as.

• x + y __ A
• _x _y B
• x. y + x. y C
• x . y + x .y D

The logic device that perform Boolean multiplication is.

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