BARC CS 2018 Nuclear Quiz -1 (Digital Logic)

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Question 1

Consider the following Boolean expression E.

How many literals are there in the minimized expression of E?

• A2
• B3
• C5
• D4

Question 2

The binary operator ≠ is defined by the following truthtable.

Which one of the following is true about the binary operator ≠?

• ABoth commutative and associative
• BCommutative but not associative
• CNot commutative but associative
• DNeither commutative nor associative

Question 3

Determine the decimal values of the binary number in 2’s complement Number is: 10101010

• A-86
• B+86
• C-98
• D+98

Question 4

Consider the following synchronous counter made up of JK, D and T flip-flops.

Find the modulus value of the counter.

• A2
• B3
• C5
• D6

Question 5

The output of the circuit shown in the following figure is equal to

• A0
• B1
• C
• DAB +

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