Digital Electronics and Logic Design MCQs | Page - 3

Dear candidates you will find MCQ questions of Digital Electronics and Logic Design here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.

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Mr. Dubey • 52.61K Points
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Q. The simplification of the Boolean expression (A'BC')'+ (AB'C)' is

(A) 0
(B) 1
(C) a
(D) bc
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Mr. Dubey • 52.61K Points
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Q. The hexadecimal number ‘A0’ has the decimal value equivalent to

(A) 80
(B) 256
(C) 100
(D) 160
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Mr. Dubey • 52.61K Points
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Q. The Boolean expression A.B+ A.B+ A.B is equivalent to

(A) a + b
(B) a\.b
(C) (a + b)\
(D) a.b
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Mr. Dubey • 52.61K Points
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Q. The 2’s complement of the number 1101101 is

(A) 101110
(B) 111110
(C) 110010
(D) 10011
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Mr. Dubey • 52.61K Points
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Q. When simplified with Boolean Algebra (x + y)(x + z) simplifies to

(A) x
(B) x + x(y + z)
(C) x(1 + yz)
(D) x + yz
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Mr. Dubey • 52.61K Points
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Q. The code where all successive numbers differ from their preceding number by single bit is

(A) binary code.
(B) bcd.
(C) excess – 3.
(D) gray.
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Mr. Dubey • 52.61K Points
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Q. -8 is equal to signed binary number

(A) 10001000
(B) oooo1000
(C) 10000000
(D) 11000000
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Mr. Dubey • 52.61K Points
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Q. DeMorgan’s first theorem shows the equivalence of

(A) or gate and exclusive or gate.
(B) nor gate and bubbled and gate.
(C) nor gate and nand gate.
(D) nand gate and not gate
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Mr. Dubey • 52.61K Points
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Q. When signed numbers are used in binary arithmetic, then which one of the following notations would have unique representation for zero.

(A) sign- magnitude.
(B) 1’s complement.
(C) 2’s complement.
(D) 9’s compleme nt.
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Mr. Dubey • 52.61K Points
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Q. The decimal equivalent of Binary number 11010 is

(A) 26
(B) 36
(C) 16
(D) 23
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