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

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ECAT Computer Sciences Chapter 5 Important MCQ's

Sr.#	Question	Answer
1	In Boolean algebra A.A.A.A.A	A. 5A B. A C. A5 D. 1
2	If A and B are two 1-bit numbers, what logic gates will be required to test for A=B?	A. NOR gate B. EXCLUSIVE OR gate C. EXCLUSIVE NOT gate D. OR gate
3	The output will be one in case any input is one in the case of.	A. OR gate B. AND gate C. NAND gate D. NOT gate
4	Boolean expression for NOR gate with two inputs x and y can be written as.	A. x + y__ B. x. y C. x + y
5		A. 0 B. 1 C. x
6	The circuit that is used for parallel to serial conversion is	A. decoder B. encoder C. multiplexer D. demultiplexer
7		A. x + y
8	The commutative law in Boolean Algebra, where a, b and c are binary number is.	A. a+0=a B. a+1=1 C. a+b=b+a D. a. (b+c) = a.b +a.c.
9		A. A + B + C + D C. A BC D D. A + B + C + D
10	Odd parity of a word can be conveniently tested by.	A. OR gate B. XOR gate C. NOR gate D. NAND gate